./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro --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 6e064514c886eab27bff1253cfa87b1ac324d3dc8890599c3d4384e987c0d244 --- 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-8393723 [2022-11-18 18:26:46,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:26:46,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:26:46,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:26:46,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:26:46,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:26:46,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:26:46,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:26:46,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:26:46,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:26:46,636 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:26:46,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:26:46,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:26:46,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:26:46,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:26:46,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:26:46,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:26:46,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:26:46,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:26:46,662 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:26:46,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:26:46,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:26:46,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:26:46,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:26:46,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:26:46,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:26:46,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:26:46,683 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:26:46,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:26:46,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:26:46,685 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:26:46,686 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:26:46,687 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:26:46,688 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:26:46,689 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:26:46,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:26:46,692 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:26:46,692 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:26:46,692 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:26:46,693 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:26:46,694 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:26:46,695 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 18:26:46,732 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:26:46,733 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:26:46,734 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:26:46,734 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:26:46,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:26:46,740 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:26:46,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:26:46,742 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:26:46,742 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:26:46,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:26:46,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:26:46,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:26:46,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:26:46,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:26:46,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:26:46,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:26:46,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:26:46,747 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:26:46,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:26:46,747 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:26:46,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:26:46,748 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:26:46,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:26:46,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:26:46,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:26:46,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:26:46,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:26:46,752 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:26:46,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:26:46,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:26:46,753 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:26:46,754 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:26:46,754 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:26:46,755 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_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e064514c886eab27bff1253cfa87b1ac324d3dc8890599c3d4384e987c0d244 [2022-11-18 18:26:47,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:26:47,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:26:47,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:26:47,075 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:26:47,076 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:26:47,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c [2022-11-18 18:26:47,163 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/data/10642989d/040c291f00b64b0bb0f2c30cd79d334f/FLAG52270585b [2022-11-18 18:26:47,806 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:26:47,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c [2022-11-18 18:26:47,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/data/10642989d/040c291f00b64b0bb0f2c30cd79d334f/FLAG52270585b [2022-11-18 18:26:48,167 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/data/10642989d/040c291f00b64b0bb0f2c30cd79d334f [2022-11-18 18:26:48,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:26:48,175 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:26:48,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:26:48,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:26:48,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:26:48,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4cfc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48, skipping insertion in model container [2022-11-18 18:26:48,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:26:48,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:26:48,514 WARN L234 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_46b23f6c-200b-4d24-a45c-4929292cd472/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-11-18 18:26:48,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:26:48,528 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:26:48,548 WARN L234 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_46b23f6c-200b-4d24-a45c-4929292cd472/sv-benchmarks/c/weaver/parallel-simple-equiv.wvr.c[2212,2225] [2022-11-18 18:26:48,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:26:48,564 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:26:48,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48 WrapperNode [2022-11-18 18:26:48,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:26:48,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:26:48,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:26:48,566 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:26:48,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,599 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2022-11-18 18:26:48,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:26:48,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:26:48,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:26:48,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:26:48,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,621 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:26:48,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:26:48,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:26:48,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:26:48,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (1/1) ... [2022-11-18 18:26:48,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:26:48,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:48,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:26:48,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:26:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:26:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 18:26:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 18:26:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 18:26:48,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 18:26:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-18 18:26:48,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-18 18:26:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:26:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:26:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:26:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 18:26:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 18:26:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:26:48,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:26:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:26:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:26:48,734 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:26:48,834 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:26:48,836 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:26:49,064 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:26:49,118 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:26:49,118 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 18:26:49,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:49 BoogieIcfgContainer [2022-11-18 18:26:49,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:26:49,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:26:49,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:26:49,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:26:49,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:26:48" (1/3) ... [2022-11-18 18:26:49,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cdeaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:26:49, skipping insertion in model container [2022-11-18 18:26:49,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:26:48" (2/3) ... [2022-11-18 18:26:49,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63cdeaf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:26:49, skipping insertion in model container [2022-11-18 18:26:49,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:49" (3/3) ... [2022-11-18 18:26:49,171 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-simple-equiv.wvr.c [2022-11-18 18:26:49,181 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 18:26:49,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:26:49,223 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:26:49,223 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:26:49,344 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-18 18:26:49,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 94 transitions, 212 flow [2022-11-18 18:26:49,469 INFO L130 PetriNetUnfolder]: 2/91 cut-off events. [2022-11-18 18:26:49,470 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:26:49,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 91 events. 2/91 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 25 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 57. Up to 2 conditions per place. [2022-11-18 18:26:49,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 94 transitions, 212 flow [2022-11-18 18:26:49,488 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 80 transitions, 178 flow [2022-11-18 18:26:49,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:26:49,526 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;@46d26ebd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:26:49,526 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-18 18:26:49,608 INFO L130 PetriNetUnfolder]: 2/79 cut-off events. [2022-11-18 18:26:49,608 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:26:49,608 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:49,610 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] [2022-11-18 18:26:49,611 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)] === [2022-11-18 18:26:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash 956838946, now seen corresponding path program 1 times [2022-11-18 18:26:49,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:49,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114831020] [2022-11-18 18:26:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:49,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:50,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:51,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:51,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:51,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114831020] [2022-11-18 18:26:51,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114831020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:51,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:51,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:26:51,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373358953] [2022-11-18 18:26:51,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:51,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:26:51,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:51,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:26:51,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:26:51,582 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-18 18:26:51,587 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 80 transitions, 178 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:51,587 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:51,587 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-18 18:26:51,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:52,550 INFO L130 PetriNetUnfolder]: 58/250 cut-off events. [2022-11-18 18:26:52,550 INFO L131 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2022-11-18 18:26:52,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 250 events. 58/250 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 895 event pairs, 1 based on Foata normal form. 3/250 useless extension candidates. Maximal degree in co-relation 188. Up to 63 conditions per place. [2022-11-18 18:26:52,555 INFO L137 encePairwiseOnDemand]: 78/94 looper letters, 31 selfloop transitions, 15 changer transitions 22/118 dead transitions. [2022-11-18 18:26:52,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 118 transitions, 441 flow [2022-11-18 18:26:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:26:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-11-18 18:26:52,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1017 transitions. [2022-11-18 18:26:52,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7212765957446808 [2022-11-18 18:26:52,580 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1017 transitions. [2022-11-18 18:26:52,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1017 transitions. [2022-11-18 18:26:52,584 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:52,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1017 transitions. [2022-11-18 18:26:52,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 67.8) internal successors, (1017), 15 states have internal predecessors, (1017), 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) [2022-11-18 18:26:52,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 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) [2022-11-18 18:26:52,604 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 94.0) internal successors, (1504), 16 states have internal predecessors, (1504), 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) [2022-11-18 18:26:52,607 INFO L175 Difference]: Start difference. First operand has 88 places, 80 transitions, 178 flow. Second operand 15 states and 1017 transitions. [2022-11-18 18:26:52,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 118 transitions, 441 flow [2022-11-18 18:26:52,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 118 transitions, 395 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-18 18:26:52,617 INFO L231 Difference]: Finished difference. Result has 102 places, 87 transitions, 242 flow [2022-11-18 18:26:52,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=242, PETRI_PLACES=102, PETRI_TRANSITIONS=87} [2022-11-18 18:26:52,623 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 14 predicate places. [2022-11-18 18:26:52,624 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 87 transitions, 242 flow [2022-11-18 18:26:52,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:52,625 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:52,625 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] [2022-11-18 18:26:52,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:26:52,626 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)] === [2022-11-18 18:26:52,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:52,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1451793492, now seen corresponding path program 2 times [2022-11-18 18:26:52,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:52,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260208983] [2022-11-18 18:26:52,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:52,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:53,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:53,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260208983] [2022-11-18 18:26:53,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260208983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:53,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:53,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 18:26:53,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458226797] [2022-11-18 18:26:53,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:53,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:26:53,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:53,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:26:53,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:26:53,517 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-18 18:26:53,518 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 87 transitions, 242 flow. Second operand has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 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) [2022-11-18 18:26:53,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:53,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-18 18:26:53,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:54,126 INFO L130 PetriNetUnfolder]: 55/296 cut-off events. [2022-11-18 18:26:54,126 INFO L131 PetriNetUnfolder]: For 109/117 co-relation queries the response was YES. [2022-11-18 18:26:54,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 604 conditions, 296 events. 55/296 cut-off events. For 109/117 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1315 event pairs, 8 based on Foata normal form. 4/298 useless extension candidates. Maximal degree in co-relation 585. Up to 63 conditions per place. [2022-11-18 18:26:54,129 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 36 selfloop transitions, 24 changer transitions 17/127 dead transitions. [2022-11-18 18:26:54,130 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 127 transitions, 551 flow [2022-11-18 18:26:54,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:26:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 18:26:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 891 transitions. [2022-11-18 18:26:54,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7291325695581015 [2022-11-18 18:26:54,134 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 891 transitions. [2022-11-18 18:26:54,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 891 transitions. [2022-11-18 18:26:54,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:54,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 891 transitions. [2022-11-18 18:26:54,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.53846153846153) internal successors, (891), 13 states have internal predecessors, (891), 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) [2022-11-18 18:26:54,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-11-18 18:26:54,141 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-11-18 18:26:54,142 INFO L175 Difference]: Start difference. First operand has 102 places, 87 transitions, 242 flow. Second operand 13 states and 891 transitions. [2022-11-18 18:26:54,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 127 transitions, 551 flow [2022-11-18 18:26:54,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 127 transitions, 521 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-11-18 18:26:54,148 INFO L231 Difference]: Finished difference. Result has 106 places, 96 transitions, 350 flow [2022-11-18 18:26:54,149 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=350, PETRI_PLACES=106, PETRI_TRANSITIONS=96} [2022-11-18 18:26:54,149 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2022-11-18 18:26:54,150 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 96 transitions, 350 flow [2022-11-18 18:26:54,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 65.6) internal successors, (656), 10 states have internal predecessors, (656), 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) [2022-11-18 18:26:54,151 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:54,151 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] [2022-11-18 18:26:54,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:26:54,152 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)] === [2022-11-18 18:26:54,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:54,153 INFO L85 PathProgramCache]: Analyzing trace with hash -735619588, now seen corresponding path program 3 times [2022-11-18 18:26:54,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:54,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255685806] [2022-11-18 18:26:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:54,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:54,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:54,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255685806] [2022-11-18 18:26:54,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255685806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:54,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:54,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:26:54,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205052910] [2022-11-18 18:26:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:54,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:26:54,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:54,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:26:54,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:26:54,975 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-18 18:26:54,976 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 96 transitions, 350 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:54,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:54,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-18 18:26:54,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:55,646 INFO L130 PetriNetUnfolder]: 49/293 cut-off events. [2022-11-18 18:26:55,647 INFO L131 PetriNetUnfolder]: For 226/234 co-relation queries the response was YES. [2022-11-18 18:26:55,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 707 conditions, 293 events. 49/293 cut-off events. For 226/234 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1339 event pairs, 5 based on Foata normal form. 5/294 useless extension candidates. Maximal degree in co-relation 690. Up to 54 conditions per place. [2022-11-18 18:26:55,650 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 26 selfloop transitions, 17 changer transitions 32/125 dead transitions. [2022-11-18 18:26:55,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 125 transitions, 640 flow [2022-11-18 18:26:55,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:26:55,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 18:26:55,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 884 transitions. [2022-11-18 18:26:55,653 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.723404255319149 [2022-11-18 18:26:55,653 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 884 transitions. [2022-11-18 18:26:55,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 884 transitions. [2022-11-18 18:26:55,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:55,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 884 transitions. [2022-11-18 18:26:55,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 68.0) internal successors, (884), 13 states have internal predecessors, (884), 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) [2022-11-18 18:26:55,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-11-18 18:26:55,660 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-11-18 18:26:55,660 INFO L175 Difference]: Start difference. First operand has 106 places, 96 transitions, 350 flow. Second operand 13 states and 884 transitions. [2022-11-18 18:26:55,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 125 transitions, 640 flow [2022-11-18 18:26:55,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 125 transitions, 572 flow, removed 21 selfloop flow, removed 8 redundant places. [2022-11-18 18:26:55,668 INFO L231 Difference]: Finished difference. Result has 112 places, 89 transitions, 311 flow [2022-11-18 18:26:55,668 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=311, PETRI_PLACES=112, PETRI_TRANSITIONS=89} [2022-11-18 18:26:55,669 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 24 predicate places. [2022-11-18 18:26:55,669 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 89 transitions, 311 flow [2022-11-18 18:26:55,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:55,670 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:55,670 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] [2022-11-18 18:26:55,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:26:55,671 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)] === [2022-11-18 18:26:55,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:55,672 INFO L85 PathProgramCache]: Analyzing trace with hash -941078784, now seen corresponding path program 4 times [2022-11-18 18:26:55,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:55,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250890352] [2022-11-18 18:26:55,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:55,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:56,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:56,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:56,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250890352] [2022-11-18 18:26:56,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250890352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:56,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:56,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:26:56,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306322729] [2022-11-18 18:26:56,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:56,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:26:56,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:56,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:26:56,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:26:56,445 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-18 18:26:56,446 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 89 transitions, 311 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:56,446 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:56,447 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-18 18:26:56,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:56,971 INFO L130 PetriNetUnfolder]: 18/184 cut-off events. [2022-11-18 18:26:56,971 INFO L131 PetriNetUnfolder]: For 102/102 co-relation queries the response was YES. [2022-11-18 18:26:56,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 184 events. 18/184 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 599 event pairs, 6 based on Foata normal form. 1/182 useless extension candidates. Maximal degree in co-relation 388. Up to 32 conditions per place. [2022-11-18 18:26:56,974 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 28 selfloop transitions, 15 changer transitions 16/109 dead transitions. [2022-11-18 18:26:56,974 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 109 transitions, 512 flow [2022-11-18 18:26:56,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:26:56,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-11-18 18:26:56,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 940 transitions. [2022-11-18 18:26:56,978 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2022-11-18 18:26:56,978 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 940 transitions. [2022-11-18 18:26:56,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 940 transitions. [2022-11-18 18:26:56,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:56,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 940 transitions. [2022-11-18 18:26:56,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 67.14285714285714) internal successors, (940), 14 states have internal predecessors, (940), 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) [2022-11-18 18:26:56,992 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 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) [2022-11-18 18:26:56,994 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 94.0) internal successors, (1410), 15 states have internal predecessors, (1410), 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) [2022-11-18 18:26:56,995 INFO L175 Difference]: Start difference. First operand has 112 places, 89 transitions, 311 flow. Second operand 14 states and 940 transitions. [2022-11-18 18:26:56,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 109 transitions, 512 flow [2022-11-18 18:26:57,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 109 transitions, 440 flow, removed 19 selfloop flow, removed 14 redundant places. [2022-11-18 18:26:57,003 INFO L231 Difference]: Finished difference. Result has 106 places, 85 transitions, 267 flow [2022-11-18 18:26:57,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=267, PETRI_PLACES=106, PETRI_TRANSITIONS=85} [2022-11-18 18:26:57,007 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 18 predicate places. [2022-11-18 18:26:57,008 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 85 transitions, 267 flow [2022-11-18 18:26:57,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:57,009 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:57,010 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] [2022-11-18 18:26:57,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:26:57,010 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)] === [2022-11-18 18:26:57,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 776139848, now seen corresponding path program 5 times [2022-11-18 18:26:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:57,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181088027] [2022-11-18 18:26:57,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:57,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:57,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:57,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:57,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181088027] [2022-11-18 18:26:57,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181088027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:57,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:57,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:26:57,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988559455] [2022-11-18 18:26:57,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:57,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:26:57,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:57,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:26:57,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:26:57,720 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-18 18:26:57,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 85 transitions, 267 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:57,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:57,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-18 18:26:57,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:58,175 INFO L130 PetriNetUnfolder]: 10/135 cut-off events. [2022-11-18 18:26:58,176 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-11-18 18:26:58,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 135 events. 10/135 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 288 event pairs, 1 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 261. Up to 22 conditions per place. [2022-11-18 18:26:58,177 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 22 selfloop transitions, 6 changer transitions 19/97 dead transitions. [2022-11-18 18:26:58,177 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 97 transitions, 398 flow [2022-11-18 18:26:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 18:26:58,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-11-18 18:26:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 865 transitions. [2022-11-18 18:26:58,180 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7078559738134206 [2022-11-18 18:26:58,181 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 865 transitions. [2022-11-18 18:26:58,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 865 transitions. [2022-11-18 18:26:58,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:58,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 865 transitions. [2022-11-18 18:26:58,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 66.53846153846153) internal successors, (865), 13 states have internal predecessors, (865), 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) [2022-11-18 18:26:58,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-11-18 18:26:58,187 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 94.0) internal successors, (1316), 14 states have internal predecessors, (1316), 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) [2022-11-18 18:26:58,187 INFO L175 Difference]: Start difference. First operand has 106 places, 85 transitions, 267 flow. Second operand 13 states and 865 transitions. [2022-11-18 18:26:58,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 97 transitions, 398 flow [2022-11-18 18:26:58,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 97 transitions, 334 flow, removed 18 selfloop flow, removed 13 redundant places. [2022-11-18 18:26:58,191 INFO L231 Difference]: Finished difference. Result has 104 places, 78 transitions, 195 flow [2022-11-18 18:26:58,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=195, PETRI_PLACES=104, PETRI_TRANSITIONS=78} [2022-11-18 18:26:58,192 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2022-11-18 18:26:58,192 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 78 transitions, 195 flow [2022-11-18 18:26:58,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:58,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 18:26:58,193 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] [2022-11-18 18:26:58,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:26:58,194 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)] === [2022-11-18 18:26:58,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:58,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1584322308, now seen corresponding path program 6 times [2022-11-18 18:26:58,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:58,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869031420] [2022-11-18 18:26:58,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:58,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:58,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:58,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:58,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:58,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869031420] [2022-11-18 18:26:58,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869031420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:58,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:58,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:26:58,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544601085] [2022-11-18 18:26:58,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:58,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:26:58,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:26:58,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:26:58,739 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 94 [2022-11-18 18:26:58,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 78 transitions, 195 flow. Second operand has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:58,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 18:26:58,741 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 94 [2022-11-18 18:26:58,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 18:26:59,039 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2022-11-18 18:26:59,039 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-18 18:26:59,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 81 events. 2/81 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 128. Up to 10 conditions per place. [2022-11-18 18:26:59,040 INFO L137 encePairwiseOnDemand]: 82/94 looper letters, 0 selfloop transitions, 0 changer transitions 76/76 dead transitions. [2022-11-18 18:26:59,040 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 76 transitions, 246 flow [2022-11-18 18:26:59,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:26:59,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-18 18:26:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 722 transitions. [2022-11-18 18:26:59,043 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6982591876208898 [2022-11-18 18:26:59,043 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 722 transitions. [2022-11-18 18:26:59,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 722 transitions. [2022-11-18 18:26:59,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 18:26:59,044 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 722 transitions. [2022-11-18 18:26:59,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 65.63636363636364) internal successors, (722), 11 states have internal predecessors, (722), 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) [2022-11-18 18:26:59,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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) [2022-11-18 18:26:59,049 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 94.0) internal successors, (1128), 12 states have internal predecessors, (1128), 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) [2022-11-18 18:26:59,049 INFO L175 Difference]: Start difference. First operand has 104 places, 78 transitions, 195 flow. Second operand 11 states and 722 transitions. [2022-11-18 18:26:59,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 76 transitions, 246 flow [2022-11-18 18:26:59,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 76 transitions, 222 flow, removed 2 selfloop flow, removed 12 redundant places. [2022-11-18 18:26:59,051 INFO L231 Difference]: Finished difference. Result has 91 places, 0 transitions, 0 flow [2022-11-18 18:26:59,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=94, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=91, PETRI_TRANSITIONS=0} [2022-11-18 18:26:59,053 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2022-11-18 18:26:59,053 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 0 transitions, 0 flow [2022-11-18 18:26:59,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 65.36363636363636) internal successors, (719), 11 states have internal predecessors, (719), 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) [2022-11-18 18:26:59,056 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-11-18 18:26:59,057 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2022-11-18 18:26:59,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-11-18 18:26:59,058 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-11-18 18:26:59,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:26:59,059 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2022-11-18 18:26:59,063 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:26:59,063 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:26:59,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:26:59 BasicIcfg [2022-11-18 18:26:59,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:26:59,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:26:59,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:26:59,071 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:26:59,072 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:26:49" (3/4) ... [2022-11-18 18:26:59,076 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:26:59,083 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-18 18:26:59,084 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-18 18:26:59,084 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-18 18:26:59,089 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-18 18:26:59,089 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 18:26:59,090 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 18:26:59,090 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:26:59,127 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:26:59,128 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:26:59,129 INFO L158 Benchmark]: Toolchain (without parser) took 10953.80ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 123.1MB in the beginning and 92.8MB in the end (delta: 30.3MB). Peak memory consumption was 110.0MB. Max. memory is 16.1GB. [2022-11-18 18:26:59,129 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:26:59,129 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.76ms. Allocated memory is still 151.0MB. Free memory was 122.7MB in the beginning and 127.1MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 18:26:59,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.72ms. Allocated memory is still 151.0MB. Free memory was 126.9MB in the beginning and 125.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:26:59,130 INFO L158 Benchmark]: Boogie Preprocessor took 24.37ms. Allocated memory is still 151.0MB. Free memory was 125.4MB in the beginning and 124.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:26:59,131 INFO L158 Benchmark]: RCFGBuilder took 511.31ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 110.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 18:26:59,131 INFO L158 Benchmark]: TraceAbstraction took 9930.69ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 109.8MB in the beginning and 95.9MB in the end (delta: 13.9MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. [2022-11-18 18:26:59,132 INFO L158 Benchmark]: Witness Printer took 57.07ms. Allocated memory is still 230.7MB. Free memory was 95.9MB in the beginning and 92.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:26:59,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 92.3MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.76ms. Allocated memory is still 151.0MB. Free memory was 122.7MB in the beginning and 127.1MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.72ms. Allocated memory is still 151.0MB. Free memory was 126.9MB in the beginning and 125.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.37ms. Allocated memory is still 151.0MB. Free memory was 125.4MB in the beginning and 124.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.31ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 110.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 9930.69ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 109.8MB in the beginning and 95.9MB in the end (delta: 13.9MB). Peak memory consumption was 95.0MB. Max. memory is 16.1GB. * Witness Printer took 57.07ms. Allocated memory is still 230.7MB. Free memory was 95.9MB in the beginning and 92.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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, 111 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: 9.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 261 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 261 mSDsluCounter, 360 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 281 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1645 IncrementalHoareTripleChecker+Invalid, 1709 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 79 mSDtfsCounter, 1645 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 120 GetRequests, 17 SyntacticMatches, 8 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=350occurred in iteration=2, InterpolantAutomatonStates: 79, 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: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 456 NumberOfCodeBlocks, 456 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 450 ConstructedInterpolants, 0 QuantifiedInterpolants, 6609 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! [2022-11-18 18:26:59,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46b23f6c-200b-4d24-a45c-4929292cd472/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE