./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/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_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/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_73b33540-7d2f-4515-9f7a-86dbaa72a070/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 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a --- 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 19:57:27,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:57:27,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:57:27,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:57:27,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:57:27,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:57:27,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:57:27,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:57:27,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:57:27,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:57:27,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:57:27,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:57:27,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:57:27,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:57:27,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:57:27,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:57:27,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:57:27,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:57:27,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:57:27,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:57:27,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:57:27,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:57:27,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:57:27,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:57:27,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:57:27,179 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:57:27,179 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:57:27,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:57:27,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:57:27,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:57:27,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:57:27,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:57:27,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:57:27,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:57:27,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:57:27,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:57:27,194 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:57:27,194 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:57:27,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:57:27,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:57:27,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:57:27,198 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:57:27,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:57:27,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:57:27,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:57:27,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:57:27,257 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:57:27,258 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:57:27,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:57:27,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:57:27,259 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:57:27,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:57:27,261 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:57:27,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:57:27,262 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:57:27,262 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:57:27,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:57:27,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:57:27,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:57:27,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:57:27,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:57:27,263 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:57:27,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:57:27,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:57:27,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:57:27,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:57:27,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:57:27,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:57:27,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:57:27,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:57:27,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:57:27,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:57:27,267 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:57:27,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:57:27,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:57:27,268 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_73b33540-7d2f-4515-9f7a-86dbaa72a070/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1118c32f43b2d6844c8e6b0e5b4fae8199d058f7b991e3c8d975cf675dc5221a [2022-11-18 19:57:27,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:57:27,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:57:27,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:57:27,706 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:57:27,707 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:57:27,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/pthread-wmm/safe036.i [2022-11-18 19:57:27,785 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/data/a6332766b/785d9e6dd43640c0858be690936bdf4e/FLAGdd5e1d79a [2022-11-18 19:57:28,597 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:57:28,598 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/sv-benchmarks/c/pthread-wmm/safe036.i [2022-11-18 19:57:28,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/data/a6332766b/785d9e6dd43640c0858be690936bdf4e/FLAGdd5e1d79a [2022-11-18 19:57:28,835 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/data/a6332766b/785d9e6dd43640c0858be690936bdf4e [2022-11-18 19:57:28,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:57:28,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:57:28,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:57:28,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:57:28,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:57:28,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:57:28" (1/1) ... [2022-11-18 19:57:28,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475167e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:28, skipping insertion in model container [2022-11-18 19:57:28,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:57:28" (1/1) ... [2022-11-18 19:57:28,863 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:57:28,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:57:29,184 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_73b33540-7d2f-4515-9f7a-86dbaa72a070/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2022-11-18 19:57:29,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:57:29,461 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:57:29,478 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_73b33540-7d2f-4515-9f7a-86dbaa72a070/sv-benchmarks/c/pthread-wmm/safe036.i[941,954] [2022-11-18 19:57:29,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:57:29,560 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:57:29,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29 WrapperNode [2022-11-18 19:57:29,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:57:29,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:57:29,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:57:29,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:57:29,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,612 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-18 19:57:29,612 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:57:29,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:57:29,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:57:29,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:57:29,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,638 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:57:29,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:57:29,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:57:29,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:57:29,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (1/1) ... [2022-11-18 19:57:29,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:57:29,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:57:29,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:57:29,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:57:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:57:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-18 19:57:29,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:57:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:57:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:57:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-18 19:57:29,756 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-18 19:57:29,756 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-18 19:57:29,758 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-18 19:57:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:57:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-18 19:57:29,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:57:29,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:57:29,760 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 19:57:29,982 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:57:29,984 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:57:30,177 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:57:30,185 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:57:30,186 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:57:30,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:30 BoogieIcfgContainer [2022-11-18 19:57:30,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:57:30,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:57:30,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:57:30,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:57:30,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:57:28" (1/3) ... [2022-11-18 19:57:30,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5593a7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:30, skipping insertion in model container [2022-11-18 19:57:30,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:29" (2/3) ... [2022-11-18 19:57:30,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5593a7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:30, skipping insertion in model container [2022-11-18 19:57:30,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:30" (3/3) ... [2022-11-18 19:57:30,202 INFO L112 eAbstractionObserver]: Analyzing ICFG safe036.i [2022-11-18 19:57:30,214 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:57:30,228 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:57:30,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:57:30,229 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:57:30,335 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-18 19:57:30,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 75 transitions, 160 flow [2022-11-18 19:57:30,484 INFO L130 PetriNetUnfolder]: 2/73 cut-off events. [2022-11-18 19:57:30,484 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:57:30,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 73 events. 2/73 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 35 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2022-11-18 19:57:30,490 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 75 transitions, 160 flow [2022-11-18 19:57:30,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 61 transitions, 128 flow [2022-11-18 19:57:30,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:57:30,516 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;@138e5ab6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:57:30,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 19:57:30,558 INFO L130 PetriNetUnfolder]: 1/60 cut-off events. [2022-11-18 19:57:30,558 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:57:30,558 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:30,560 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] [2022-11-18 19:57:30,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 19:57:30,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:30,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1404786437, now seen corresponding path program 1 times [2022-11-18 19:57:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:30,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665067750] [2022-11-18 19:57:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:30,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:31,480 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 19:57:31,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:31,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665067750] [2022-11-18 19:57:31,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665067750] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:31,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:31,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:57:31,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785124377] [2022-11-18 19:57:31,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:31,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:57:31,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:31,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:57:31,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:57:31,539 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 75 [2022-11-18 19:57:31,543 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 61 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 19:57:31,543 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:31,544 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 75 [2022-11-18 19:57:31,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:31,894 INFO L130 PetriNetUnfolder]: 31/154 cut-off events. [2022-11-18 19:57:31,897 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 19:57:31,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 154 events. 31/154 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 500 event pairs, 0 based on Foata normal form. 7/157 useless extension candidates. Maximal degree in co-relation 208. Up to 26 conditions per place. [2022-11-18 19:57:31,903 INFO L137 encePairwiseOnDemand]: 65/75 looper letters, 11 selfloop transitions, 5 changer transitions 20/84 dead transitions. [2022-11-18 19:57:31,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 84 transitions, 249 flow [2022-11-18 19:57:31,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:57:31,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 19:57:31,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 641 transitions. [2022-11-18 19:57:31,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8546666666666667 [2022-11-18 19:57:31,945 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 641 transitions. [2022-11-18 19:57:31,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 641 transitions. [2022-11-18 19:57:31,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:31,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 641 transitions. [2022-11-18 19:57:31,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 64.1) internal successors, (641), 10 states have internal predecessors, (641), 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 19:57:31,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 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 19:57:31,970 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 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 19:57:31,972 INFO L175 Difference]: Start difference. First operand has 67 places, 61 transitions, 128 flow. Second operand 10 states and 641 transitions. [2022-11-18 19:57:31,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 84 transitions, 249 flow [2022-11-18 19:57:31,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 84 transitions, 246 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:31,982 INFO L231 Difference]: Finished difference. Result has 80 places, 61 transitions, 166 flow [2022-11-18 19:57:31,985 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=166, PETRI_PLACES=80, PETRI_TRANSITIONS=61} [2022-11-18 19:57:31,990 INFO L288 CegarLoopForPetriNet]: 67 programPoint places, 13 predicate places. [2022-11-18 19:57:31,991 INFO L495 AbstractCegarLoop]: Abstraction has has 80 places, 61 transitions, 166 flow [2022-11-18 19:57:31,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.5) internal successors, (369), 6 states have internal predecessors, (369), 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 19:57:31,992 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:31,992 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] [2022-11-18 19:57:31,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:57:31,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 19:57:31,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:31,994 INFO L85 PathProgramCache]: Analyzing trace with hash 414713991, now seen corresponding path program 1 times [2022-11-18 19:57:31,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:31,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315429417] [2022-11-18 19:57:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:31,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:32,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:32,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:32,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315429417] [2022-11-18 19:57:32,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315429417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:32,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:32,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:32,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462738172] [2022-11-18 19:57:32,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:32,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:32,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:32,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:32,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:32,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 75 [2022-11-18 19:57:32,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 61 transitions, 166 flow. Second operand has 7 states, 7 states have (on average 61.42857142857143) internal successors, (430), 7 states have internal predecessors, (430), 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 19:57:32,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:32,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 75 [2022-11-18 19:57:32,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:32,748 INFO L130 PetriNetUnfolder]: 9/93 cut-off events. [2022-11-18 19:57:32,748 INFO L131 PetriNetUnfolder]: For 78/78 co-relation queries the response was YES. [2022-11-18 19:57:32,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 93 events. 9/93 cut-off events. For 78/78 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 148 event pairs, 0 based on Foata normal form. 3/95 useless extension candidates. Maximal degree in co-relation 183. Up to 18 conditions per place. [2022-11-18 19:57:32,751 INFO L137 encePairwiseOnDemand]: 67/75 looper letters, 7 selfloop transitions, 7 changer transitions 11/73 dead transitions. [2022-11-18 19:57:32,751 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 73 transitions, 285 flow [2022-11-18 19:57:32,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:57:32,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-11-18 19:57:32,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 627 transitions. [2022-11-18 19:57:32,757 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.836 [2022-11-18 19:57:32,757 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 627 transitions. [2022-11-18 19:57:32,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 627 transitions. [2022-11-18 19:57:32,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:32,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 627 transitions. [2022-11-18 19:57:32,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 62.7) internal successors, (627), 10 states have internal predecessors, (627), 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 19:57:32,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 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 19:57:32,766 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 75.0) internal successors, (825), 11 states have internal predecessors, (825), 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 19:57:32,767 INFO L175 Difference]: Start difference. First operand has 80 places, 61 transitions, 166 flow. Second operand 10 states and 627 transitions. [2022-11-18 19:57:32,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 73 transitions, 285 flow [2022-11-18 19:57:32,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 73 transitions, 250 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-11-18 19:57:32,778 INFO L231 Difference]: Finished difference. Result has 84 places, 61 transitions, 182 flow [2022-11-18 19:57:32,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=182, PETRI_PLACES=84, PETRI_TRANSITIONS=61} [2022-11-18 19:57:32,780 INFO L288 CegarLoopForPetriNet]: 67 programPoint places, 17 predicate places. [2022-11-18 19:57:32,780 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 61 transitions, 182 flow [2022-11-18 19:57:32,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 61.42857142857143) internal successors, (430), 7 states have internal predecessors, (430), 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 19:57:32,781 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:32,782 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] [2022-11-18 19:57:32,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:57:32,784 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 19:57:32,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash 545848005, now seen corresponding path program 1 times [2022-11-18 19:57:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:32,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673042135] [2022-11-18 19:57:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:32,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:33,176 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 19:57:33,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:33,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673042135] [2022-11-18 19:57:33,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673042135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:33,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:33,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:33,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605822369] [2022-11-18 19:57:33,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:33,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:33,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:33,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:33,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:33,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 75 [2022-11-18 19:57:33,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 61 transitions, 182 flow. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 19:57:33,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:33,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 75 [2022-11-18 19:57:33,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:33,409 INFO L130 PetriNetUnfolder]: 5/100 cut-off events. [2022-11-18 19:57:33,409 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-11-18 19:57:33,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 100 events. 5/100 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 166 event pairs, 0 based on Foata normal form. 1/100 useless extension candidates. Maximal degree in co-relation 163. Up to 14 conditions per place. [2022-11-18 19:57:33,410 INFO L137 encePairwiseOnDemand]: 68/75 looper letters, 14 selfloop transitions, 3 changer transitions 4/68 dead transitions. [2022-11-18 19:57:33,413 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 68 transitions, 240 flow [2022-11-18 19:57:33,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:57:33,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 19:57:33,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 421 transitions. [2022-11-18 19:57:33,416 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8019047619047619 [2022-11-18 19:57:33,418 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 421 transitions. [2022-11-18 19:57:33,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 421 transitions. [2022-11-18 19:57:33,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:33,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 421 transitions. [2022-11-18 19:57:33,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 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 19:57:33,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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 19:57:33,425 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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 19:57:33,426 INFO L175 Difference]: Start difference. First operand has 84 places, 61 transitions, 182 flow. Second operand 7 states and 421 transitions. [2022-11-18 19:57:33,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 68 transitions, 240 flow [2022-11-18 19:57:33,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 68 transitions, 194 flow, removed 13 selfloop flow, removed 13 redundant places. [2022-11-18 19:57:33,431 INFO L231 Difference]: Finished difference. Result has 78 places, 63 transitions, 163 flow [2022-11-18 19:57:33,433 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=163, PETRI_PLACES=78, PETRI_TRANSITIONS=63} [2022-11-18 19:57:33,434 INFO L288 CegarLoopForPetriNet]: 67 programPoint places, 11 predicate places. [2022-11-18 19:57:33,435 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 63 transitions, 163 flow [2022-11-18 19:57:33,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 19:57:33,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:33,436 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] [2022-11-18 19:57:33,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:57:33,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-11-18 19:57:33,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash -914364603, now seen corresponding path program 2 times [2022-11-18 19:57:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:33,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729650139] [2022-11-18 19:57:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:33,793 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 19:57:33,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:33,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729650139] [2022-11-18 19:57:33,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729650139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:33,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:33,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:57:33,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986709727] [2022-11-18 19:57:33,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:33,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:57:33,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:33,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:57:33,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:57:33,797 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 75 [2022-11-18 19:57:33,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 63 transitions, 163 flow. Second operand has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 19:57:33,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:33,798 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 75 [2022-11-18 19:57:33,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:33,945 INFO L130 PetriNetUnfolder]: 5/97 cut-off events. [2022-11-18 19:57:33,945 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-18 19:57:33,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 97 events. 5/97 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 175 event pairs, 1 based on Foata normal form. 1/97 useless extension candidates. Maximal degree in co-relation 155. Up to 10 conditions per place. [2022-11-18 19:57:33,947 INFO L137 encePairwiseOnDemand]: 68/75 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2022-11-18 19:57:33,948 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 63 transitions, 201 flow [2022-11-18 19:57:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:57:33,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-18 19:57:33,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 415 transitions. [2022-11-18 19:57:33,950 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7904761904761904 [2022-11-18 19:57:33,950 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 415 transitions. [2022-11-18 19:57:33,950 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 415 transitions. [2022-11-18 19:57:33,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:33,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 415 transitions. [2022-11-18 19:57:33,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 59.285714285714285) internal successors, (415), 7 states have internal predecessors, (415), 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 19:57:33,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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 19:57:33,959 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 75.0) internal successors, (600), 8 states have internal predecessors, (600), 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 19:57:33,959 INFO L175 Difference]: Start difference. First operand has 78 places, 63 transitions, 163 flow. Second operand 7 states and 415 transitions. [2022-11-18 19:57:33,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 63 transitions, 201 flow [2022-11-18 19:57:33,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 63 transitions, 196 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-11-18 19:57:33,962 INFO L231 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2022-11-18 19:57:33,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2022-11-18 19:57:33,964 INFO L288 CegarLoopForPetriNet]: 67 programPoint places, 9 predicate places. [2022-11-18 19:57:33,965 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2022-11-18 19:57:33,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 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 19:57:33,974 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-11-18 19:57:33,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-11-18 19:57:33,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-11-18 19:57:33,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:57:33,977 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-11-18 19:57:33,983 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 19:57:33,983 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:57:33,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:57:33 BasicIcfg [2022-11-18 19:57:33,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:57:33,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:57:33,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:57:33,992 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:57:33,993 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:30" (3/4) ... [2022-11-18 19:57:33,997 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:57:34,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-18 19:57:34,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-18 19:57:34,013 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-18 19:57:34,013 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:57:34,013 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 19:57:34,013 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:57:34,060 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:57:34,071 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:57:34,072 INFO L158 Benchmark]: Toolchain (without parser) took 5230.24ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 82.7MB in the beginning and 93.3MB in the end (delta: -10.6MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2022-11-18 19:57:34,073 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 100.6MB in the beginning and 100.6MB in the end (delta: 70.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:57:34,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 715.57ms. Allocated memory is still 121.6MB. Free memory was 82.4MB in the beginning and 85.6MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:57:34,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.55ms. Allocated memory is still 121.6MB. Free memory was 85.6MB in the beginning and 83.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:57:34,075 INFO L158 Benchmark]: Boogie Preprocessor took 29.72ms. Allocated memory is still 121.6MB. Free memory was 83.6MB in the beginning and 82.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:57:34,081 INFO L158 Benchmark]: RCFGBuilder took 545.77ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 69.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:57:34,082 INFO L158 Benchmark]: TraceAbstraction took 3797.38ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 68.9MB in the beginning and 96.4MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:57:34,082 INFO L158 Benchmark]: Witness Printer took 80.00ms. Allocated memory is still 146.8MB. Free memory was 96.4MB in the beginning and 93.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:57:34,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory was 100.6MB in the beginning and 100.6MB in the end (delta: 70.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 715.57ms. Allocated memory is still 121.6MB. Free memory was 82.4MB in the beginning and 85.6MB in the end (delta: -3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.55ms. Allocated memory is still 121.6MB. Free memory was 85.6MB in the beginning and 83.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.72ms. Allocated memory is still 121.6MB. Free memory was 83.6MB in the beginning and 82.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 545.77ms. Allocated memory is still 121.6MB. Free memory was 82.1MB in the beginning and 69.8MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3797.38ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 68.9MB in the beginning and 96.4MB in the end (delta: -27.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.00ms. Allocated memory is still 146.8MB. Free memory was 96.4MB in the beginning and 93.3MB 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: 18]: 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 5 procedures, 90 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 135 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 31 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=2, InterpolantAutomatonStates: 34, 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, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 208 NumberOfCodeBlocks, 208 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 204 ConstructedInterpolants, 0 QuantifiedInterpolants, 672 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 19:57:34,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73b33540-7d2f-4515-9f7a-86dbaa72a070/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