./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ --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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- 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-dbf71c6-m [2022-10-17 10:58:06,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:58:06,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:58:06,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:58:06,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:58:06,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:58:06,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:58:06,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:58:06,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:58:06,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:58:06,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:58:06,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:58:06,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:58:06,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:58:06,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:58:06,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:58:06,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:58:06,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:58:06,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:58:06,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:58:06,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:58:06,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:58:06,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:58:06,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:58:07,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:58:07,003 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:58:07,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:58:07,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:58:07,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:58:07,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:58:07,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:58:07,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:58:07,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:58:07,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:58:07,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:58:07,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:58:07,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:58:07,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:58:07,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:58:07,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:58:07,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:58:07,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:58:07,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:58:07,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:58:07,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:58:07,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:58:07,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:58:07,078 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:58:07,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:58:07,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:58:07,080 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:58:07,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:58:07,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:58:07,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:58:07,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:58:07,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:58:07,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:58:07,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:58:07,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:58:07,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:58:07,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:58:07,084 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:58:07,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:58:07,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:58:07,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:58:07,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:58:07,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:58:07,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:58:07,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:58:07,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:58:07,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:58:07,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:58:07,089 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:58:07,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:58:07,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:58:07,090 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_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-10-17 10:58:07,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:58:07,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:58:07,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:58:07,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:58:07,398 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:58:07,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-10-17 10:58:07,470 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/data/48b0a6e98/03a986ce14d747a0adc83aff0b11e54a/FLAGde74a53bf [2022-10-17 10:58:07,980 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:58:07,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-10-17 10:58:07,993 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/data/48b0a6e98/03a986ce14d747a0adc83aff0b11e54a/FLAGde74a53bf [2022-10-17 10:58:08,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/data/48b0a6e98/03a986ce14d747a0adc83aff0b11e54a [2022-10-17 10:58:08,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:58:08,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:58:08,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:58:08,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:58:08,347 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:58:08,348 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d13ae9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08, skipping insertion in model container [2022-10-17 10:58:08,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:58:08,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:58:08,698 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-10-17 10:58:08,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:58:08,731 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:58:08,754 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-10-17 10:58:08,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:58:08,772 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:58:08,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08 WrapperNode [2022-10-17 10:58:08,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:58:08,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:58:08,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:58:08,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:58:08,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,837 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 232 [2022-10-17 10:58:08,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:58:08,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:58:08,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:58:08,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:58:08,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,873 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:58:08,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:58:08,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:58:08,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:58:08,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (1/1) ... [2022-10-17 10:58:08,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:58:08,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:08,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:58:08,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:58:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:58:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:58:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:58:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:58:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-17 10:58:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-17 10:58:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-17 10:58:08,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-17 10:58:08,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-10-17 10:58:08,985 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-10-17 10:58:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:58:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:58:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:58:08,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:58:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:58:08,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:58:08,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:58:08,988 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:58:09,170 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:58:09,173 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:58:09,708 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:58:09,837 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:58:09,838 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-17 10:58:09,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:58:09 BoogieIcfgContainer [2022-10-17 10:58:09,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:58:09,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:58:09,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:58:09,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:58:09,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:58:08" (1/3) ... [2022-10-17 10:58:09,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6991c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:58:09, skipping insertion in model container [2022-10-17 10:58:09,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:58:08" (2/3) ... [2022-10-17 10:58:09,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b6991c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:58:09, skipping insertion in model container [2022-10-17 10:58:09,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:58:09" (3/3) ... [2022-10-17 10:58:09,852 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-10-17 10:58:09,881 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:58:09,893 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:58:09,893 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:58:09,893 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:58:09,984 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-10-17 10:58:10,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 298 places, 315 transitions, 654 flow [2022-10-17 10:58:10,268 INFO L130 PetriNetUnfolder]: 27/312 cut-off events. [2022-10-17 10:58:10,269 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-10-17 10:58:10,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 325 conditions, 312 events. 27/312 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 204 event pairs, 0 based on Foata normal form. 0/284 useless extension candidates. Maximal degree in co-relation 244. Up to 3 conditions per place. [2022-10-17 10:58:10,276 INFO L82 GeneralOperation]: Start removeDead. Operand has 298 places, 315 transitions, 654 flow [2022-10-17 10:58:10,292 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 301 transitions, 620 flow [2022-10-17 10:58:10,318 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:58:10,328 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;@6f51592b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:58:10,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-17 10:58:10,399 INFO L130 PetriNetUnfolder]: 27/300 cut-off events. [2022-10-17 10:58:10,400 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-10-17 10:58:10,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:10,401 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:10,401 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)] === [2022-10-17 10:58:10,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:10,410 INFO L85 PathProgramCache]: Analyzing trace with hash -924327526, now seen corresponding path program 1 times [2022-10-17 10:58:10,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:10,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540383268] [2022-10-17 10:58:10,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:10,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:10,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:10,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:10,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540383268] [2022-10-17 10:58:10,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540383268] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:10,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:10,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:58:10,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416793512] [2022-10-17 10:58:10,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:10,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:58:10,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:11,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:58:11,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:58:11,046 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 315 [2022-10-17 10:58:11,051 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 301 transitions, 620 flow. Second operand has 2 states, 2 states have (on average 292.5) internal successors, (585), 2 states have internal predecessors, (585), 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) [2022-10-17 10:58:11,051 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:11,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 315 [2022-10-17 10:58:11,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:11,150 INFO L130 PetriNetUnfolder]: 22/329 cut-off events. [2022-10-17 10:58:11,150 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-10-17 10:58:11,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 329 events. 22/329 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 381 event pairs, 7 based on Foata normal form. 36/338 useless extension candidates. Maximal degree in co-relation 233. Up to 28 conditions per place. [2022-10-17 10:58:11,156 INFO L137 encePairwiseOnDemand]: 297/315 looper letters, 8 selfloop transitions, 0 changer transitions 12/283 dead transitions. [2022-10-17 10:58:11,156 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 283 transitions, 600 flow [2022-10-17 10:58:11,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:58:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-10-17 10:58:11,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 602 transitions. [2022-10-17 10:58:11,173 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2022-10-17 10:58:11,174 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 602 transitions. [2022-10-17 10:58:11,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 602 transitions. [2022-10-17 10:58:11,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:11,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 602 transitions. [2022-10-17 10:58:11,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 301.0) internal successors, (602), 2 states have internal predecessors, (602), 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) [2022-10-17 10:58:11,195 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 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) [2022-10-17 10:58:11,196 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 315.0) internal successors, (945), 3 states have internal predecessors, (945), 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) [2022-10-17 10:58:11,198 INFO L175 Difference]: Start difference. First operand has 284 places, 301 transitions, 620 flow. Second operand 2 states and 602 transitions. [2022-10-17 10:58:11,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 283 transitions, 600 flow [2022-10-17 10:58:11,204 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 283 transitions, 588 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-10-17 10:58:11,233 INFO L231 Difference]: Finished difference. Result has 279 places, 271 transitions, 548 flow [2022-10-17 10:58:11,235 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=548, PETRI_PLACES=279, PETRI_TRANSITIONS=271} [2022-10-17 10:58:11,239 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, -5 predicate places. [2022-10-17 10:58:11,240 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 271 transitions, 548 flow [2022-10-17 10:58:11,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 292.5) internal successors, (585), 2 states have internal predecessors, (585), 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) [2022-10-17 10:58:11,241 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:11,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:11,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:58:11,243 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)] === [2022-10-17 10:58:11,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:11,245 INFO L85 PathProgramCache]: Analyzing trace with hash 759378185, now seen corresponding path program 1 times [2022-10-17 10:58:11,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:11,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487910337] [2022-10-17 10:58:11,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:11,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:11,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:12,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:58:12,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:12,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487910337] [2022-10-17 10:58:12,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487910337] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:12,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:12,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-17 10:58:12,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531682899] [2022-10-17 10:58:12,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:12,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 10:58:12,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:12,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 10:58:12,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:58:12,118 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 315 [2022-10-17 10:58:12,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 271 transitions, 548 flow. Second operand has 8 states, 8 states have (on average 199.625) internal successors, (1597), 8 states have internal predecessors, (1597), 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) [2022-10-17 10:58:12,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:12,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 315 [2022-10-17 10:58:12,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:12,568 INFO L130 PetriNetUnfolder]: 202/783 cut-off events. [2022-10-17 10:58:12,569 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-10-17 10:58:12,574 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 783 events. 202/783 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3253 event pairs, 103 based on Foata normal form. 0/638 useless extension candidates. Maximal degree in co-relation 1154. Up to 333 conditions per place. [2022-10-17 10:58:12,581 INFO L137 encePairwiseOnDemand]: 297/315 looper letters, 91 selfloop transitions, 15 changer transitions 0/283 dead transitions. [2022-10-17 10:58:12,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 283 transitions, 784 flow [2022-10-17 10:58:12,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-17 10:58:12,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-10-17 10:58:12,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1629 transitions. [2022-10-17 10:58:12,589 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.6464285714285715 [2022-10-17 10:58:12,589 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1629 transitions. [2022-10-17 10:58:12,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1629 transitions. [2022-10-17 10:58:12,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:12,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1629 transitions. [2022-10-17 10:58:12,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 203.625) internal successors, (1629), 8 states have internal predecessors, (1629), 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) [2022-10-17 10:58:12,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 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) [2022-10-17 10:58:12,608 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 315.0) internal successors, (2835), 9 states have internal predecessors, (2835), 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) [2022-10-17 10:58:12,609 INFO L175 Difference]: Start difference. First operand has 279 places, 271 transitions, 548 flow. Second operand 8 states and 1629 transitions. [2022-10-17 10:58:12,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 283 transitions, 784 flow [2022-10-17 10:58:12,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 283 transitions, 784 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:58:12,620 INFO L231 Difference]: Finished difference. Result has 275 places, 274 transitions, 602 flow [2022-10-17 10:58:12,621 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=602, PETRI_PLACES=275, PETRI_TRANSITIONS=274} [2022-10-17 10:58:12,622 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, -9 predicate places. [2022-10-17 10:58:12,623 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 274 transitions, 602 flow [2022-10-17 10:58:12,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 199.625) internal successors, (1597), 8 states have internal predecessors, (1597), 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) [2022-10-17 10:58:12,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:12,625 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:12,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:58:12,626 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)] === [2022-10-17 10:58:12,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:12,626 INFO L85 PathProgramCache]: Analyzing trace with hash 147123894, now seen corresponding path program 1 times [2022-10-17 10:58:12,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:12,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118912539] [2022-10-17 10:58:12,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:12,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:14,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:58:14,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:14,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118912539] [2022-10-17 10:58:14,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118912539] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:58:14,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:58:14,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-10-17 10:58:14,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928228503] [2022-10-17 10:58:14,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:14,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-17 10:58:14,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:14,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-17 10:58:14,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2022-10-17 10:58:14,152 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 315 [2022-10-17 10:58:14,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 274 transitions, 602 flow. Second operand has 21 states, 21 states have (on average 174.85714285714286) internal successors, (3672), 21 states have internal predecessors, (3672), 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) [2022-10-17 10:58:14,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:14,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 315 [2022-10-17 10:58:14,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:16,143 INFO L130 PetriNetUnfolder]: 765/2564 cut-off events. [2022-10-17 10:58:16,143 INFO L131 PetriNetUnfolder]: For 19/24 co-relation queries the response was YES. [2022-10-17 10:58:16,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3691 conditions, 2564 events. 765/2564 cut-off events. For 19/24 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 18150 event pairs, 101 based on Foata normal form. 2/2208 useless extension candidates. Maximal degree in co-relation 3686. Up to 282 conditions per place. [2022-10-17 10:58:16,173 INFO L137 encePairwiseOnDemand]: 285/315 looper letters, 146 selfloop transitions, 31 changer transitions 20/357 dead transitions. [2022-10-17 10:58:16,174 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 357 transitions, 1173 flow [2022-10-17 10:58:16,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-10-17 10:58:16,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-10-17 10:58:16,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5638 transitions. [2022-10-17 10:58:16,193 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.5593253968253968 [2022-10-17 10:58:16,193 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 5638 transitions. [2022-10-17 10:58:16,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 5638 transitions. [2022-10-17 10:58:16,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:16,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 5638 transitions. [2022-10-17 10:58:16,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 176.1875) internal successors, (5638), 32 states have internal predecessors, (5638), 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) [2022-10-17 10:58:16,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 315.0) internal successors, (10395), 33 states have internal predecessors, (10395), 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) [2022-10-17 10:58:16,264 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 315.0) internal successors, (10395), 33 states have internal predecessors, (10395), 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) [2022-10-17 10:58:16,264 INFO L175 Difference]: Start difference. First operand has 275 places, 274 transitions, 602 flow. Second operand 32 states and 5638 transitions. [2022-10-17 10:58:16,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 357 transitions, 1173 flow [2022-10-17 10:58:16,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 357 transitions, 1149 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-10-17 10:58:16,278 INFO L231 Difference]: Finished difference. Result has 307 places, 285 transitions, 703 flow [2022-10-17 10:58:16,279 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=578, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=703, PETRI_PLACES=307, PETRI_TRANSITIONS=285} [2022-10-17 10:58:16,281 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, 23 predicate places. [2022-10-17 10:58:16,282 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 285 transitions, 703 flow [2022-10-17 10:58:16,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 174.85714285714286) internal successors, (3672), 21 states have internal predecessors, (3672), 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) [2022-10-17 10:58:16,284 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:16,284 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:16,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:58:16,285 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)] === [2022-10-17 10:58:16,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:16,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1010837465, now seen corresponding path program 1 times [2022-10-17 10:58:16,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:16,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092021714] [2022-10-17 10:58:16,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:16,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:16,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:16,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:58:16,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:16,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092021714] [2022-10-17 10:58:16,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092021714] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:16,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [236405702] [2022-10-17 10:58:16,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:16,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:16,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:16,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:16,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:58:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:16,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:58:16,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:17,395 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:58:17,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:58:17,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [236405702] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:17,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:17,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-10-17 10:58:17,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509949816] [2022-10-17 10:58:17,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:17,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-17 10:58:17,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:17,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-17 10:58:17,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:58:17,787 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 315 [2022-10-17 10:58:17,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 285 transitions, 703 flow. Second operand has 19 states, 19 states have (on average 240.26315789473685) internal successors, (4565), 19 states have internal predecessors, (4565), 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) [2022-10-17 10:58:17,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:17,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 315 [2022-10-17 10:58:17,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:19,387 INFO L130 PetriNetUnfolder]: 1489/3795 cut-off events. [2022-10-17 10:58:19,388 INFO L131 PetriNetUnfolder]: For 445/539 co-relation queries the response was YES. [2022-10-17 10:58:19,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6396 conditions, 3795 events. 1489/3795 cut-off events. For 445/539 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 24347 event pairs, 585 based on Foata normal form. 6/2910 useless extension candidates. Maximal degree in co-relation 6384. Up to 1092 conditions per place. [2022-10-17 10:58:19,438 INFO L137 encePairwiseOnDemand]: 286/315 looper letters, 133 selfloop transitions, 54 changer transitions 0/407 dead transitions. [2022-10-17 10:58:19,438 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 407 transitions, 1375 flow [2022-10-17 10:58:19,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-17 10:58:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-10-17 10:58:19,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4907 transitions. [2022-10-17 10:58:19,460 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7788888888888889 [2022-10-17 10:58:19,461 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4907 transitions. [2022-10-17 10:58:19,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4907 transitions. [2022-10-17 10:58:19,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:19,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4907 transitions. [2022-10-17 10:58:19,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 245.35) internal successors, (4907), 20 states have internal predecessors, (4907), 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) [2022-10-17 10:58:19,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 315.0) internal successors, (6615), 21 states have internal predecessors, (6615), 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) [2022-10-17 10:58:19,501 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 315.0) internal successors, (6615), 21 states have internal predecessors, (6615), 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) [2022-10-17 10:58:19,501 INFO L175 Difference]: Start difference. First operand has 307 places, 285 transitions, 703 flow. Second operand 20 states and 4907 transitions. [2022-10-17 10:58:19,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 407 transitions, 1375 flow [2022-10-17 10:58:19,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 407 transitions, 1331 flow, removed 5 selfloop flow, removed 21 redundant places. [2022-10-17 10:58:19,522 INFO L231 Difference]: Finished difference. Result has 307 places, 322 transitions, 974 flow [2022-10-17 10:58:19,523 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=254, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=974, PETRI_PLACES=307, PETRI_TRANSITIONS=322} [2022-10-17 10:58:19,524 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, 23 predicate places. [2022-10-17 10:58:19,524 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 322 transitions, 974 flow [2022-10-17 10:58:19,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 240.26315789473685) internal successors, (4565), 19 states have internal predecessors, (4565), 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) [2022-10-17 10:58:19,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:19,545 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:19,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:19,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:19,760 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)] === [2022-10-17 10:58:19,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:19,760 INFO L85 PathProgramCache]: Analyzing trace with hash 2143187183, now seen corresponding path program 1 times [2022-10-17 10:58:19,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:19,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080070812] [2022-10-17 10:58:19,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:19,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:20,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:58:20,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:20,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080070812] [2022-10-17 10:58:20,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080070812] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:20,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [945539517] [2022-10-17 10:58:20,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:20,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:20,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:20,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:20,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:58:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:20,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:58:20,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:20,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:58:20,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:58:21,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [945539517] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:58:21,178 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:58:21,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-10-17 10:58:21,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702956257] [2022-10-17 10:58:21,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:58:21,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-17 10:58:21,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:21,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-17 10:58:21,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:58:21,189 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 315 [2022-10-17 10:58:21,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 322 transitions, 974 flow. Second operand has 19 states, 19 states have (on average 237.52631578947367) internal successors, (4513), 19 states have internal predecessors, (4513), 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) [2022-10-17 10:58:21,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:21,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 315 [2022-10-17 10:58:21,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:22,918 INFO L130 PetriNetUnfolder]: 1561/3928 cut-off events. [2022-10-17 10:58:22,918 INFO L131 PetriNetUnfolder]: For 1442/1563 co-relation queries the response was YES. [2022-10-17 10:58:22,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7701 conditions, 3928 events. 1561/3928 cut-off events. For 1442/1563 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 26017 event pairs, 773 based on Foata normal form. 35/3331 useless extension candidates. Maximal degree in co-relation 7683. Up to 1568 conditions per place. [2022-10-17 10:58:23,103 INFO L137 encePairwiseOnDemand]: 286/315 looper letters, 72 selfloop transitions, 30 changer transitions 89/408 dead transitions. [2022-10-17 10:58:23,104 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 408 transitions, 1642 flow [2022-10-17 10:58:23,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-17 10:58:23,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-10-17 10:58:23,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 4847 transitions. [2022-10-17 10:58:23,119 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7693650793650794 [2022-10-17 10:58:23,120 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 4847 transitions. [2022-10-17 10:58:23,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 4847 transitions. [2022-10-17 10:58:23,124 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:23,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 4847 transitions. [2022-10-17 10:58:23,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 242.35) internal successors, (4847), 20 states have internal predecessors, (4847), 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) [2022-10-17 10:58:23,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 315.0) internal successors, (6615), 21 states have internal predecessors, (6615), 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) [2022-10-17 10:58:23,150 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 315.0) internal successors, (6615), 21 states have internal predecessors, (6615), 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) [2022-10-17 10:58:23,150 INFO L175 Difference]: Start difference. First operand has 307 places, 322 transitions, 974 flow. Second operand 20 states and 4847 transitions. [2022-10-17 10:58:23,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 408 transitions, 1642 flow [2022-10-17 10:58:23,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 408 transitions, 1605 flow, removed 11 selfloop flow, removed 3 redundant places. [2022-10-17 10:58:23,172 INFO L231 Difference]: Finished difference. Result has 327 places, 297 transitions, 872 flow [2022-10-17 10:58:23,173 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=937, PETRI_DIFFERENCE_MINUEND_PLACES=304, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=872, PETRI_PLACES=327, PETRI_TRANSITIONS=297} [2022-10-17 10:58:23,176 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, 43 predicate places. [2022-10-17 10:58:23,176 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 297 transitions, 872 flow [2022-10-17 10:58:23,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 237.52631578947367) internal successors, (4513), 19 states have internal predecessors, (4513), 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) [2022-10-17 10:58:23,177 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:23,178 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:23,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:23,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:23,379 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)] === [2022-10-17 10:58:23,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash 631866536, now seen corresponding path program 2 times [2022-10-17 10:58:23,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:23,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421109734] [2022-10-17 10:58:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:23,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:23,864 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-17 10:58:23,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:23,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421109734] [2022-10-17 10:58:23,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421109734] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:23,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032826040] [2022-10-17 10:58:23,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:58:23,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:23,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:23,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:23,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:58:24,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:58:24,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:58:24,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:58:24,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:24,335 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-17 10:58:24,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:24,659 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-10-17 10:58:24,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032826040] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:24,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-17 10:58:24,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-10-17 10:58:24,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911287599] [2022-10-17 10:58:24,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:24,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:58:24,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:24,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:58:24,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:58:24,667 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 315 [2022-10-17 10:58:24,669 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 297 transitions, 872 flow. Second operand has 9 states, 9 states have (on average 243.55555555555554) internal successors, (2192), 9 states have internal predecessors, (2192), 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) [2022-10-17 10:58:24,670 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:24,670 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 315 [2022-10-17 10:58:24,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:25,344 INFO L130 PetriNetUnfolder]: 826/1975 cut-off events. [2022-10-17 10:58:25,344 INFO L131 PetriNetUnfolder]: For 1591/1642 co-relation queries the response was YES. [2022-10-17 10:58:25,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4626 conditions, 1975 events. 826/1975 cut-off events. For 1591/1642 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 11652 event pairs, 220 based on Foata normal form. 2/1702 useless extension candidates. Maximal degree in co-relation 4604. Up to 701 conditions per place. [2022-10-17 10:58:25,372 INFO L137 encePairwiseOnDemand]: 304/315 looper letters, 78 selfloop transitions, 10 changer transitions 0/309 dead transitions. [2022-10-17 10:58:25,372 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 309 transitions, 1100 flow [2022-10-17 10:58:25,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:58:25,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-10-17 10:58:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2444 transitions. [2022-10-17 10:58:25,381 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7758730158730158 [2022-10-17 10:58:25,382 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2444 transitions. [2022-10-17 10:58:25,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2444 transitions. [2022-10-17 10:58:25,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:25,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2444 transitions. [2022-10-17 10:58:25,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 244.4) internal successors, (2444), 10 states have internal predecessors, (2444), 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) [2022-10-17 10:58:25,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 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) [2022-10-17 10:58:25,401 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 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) [2022-10-17 10:58:25,402 INFO L175 Difference]: Start difference. First operand has 327 places, 297 transitions, 872 flow. Second operand 10 states and 2444 transitions. [2022-10-17 10:58:25,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 309 transitions, 1100 flow [2022-10-17 10:58:25,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 309 transitions, 1019 flow, removed 17 selfloop flow, removed 18 redundant places. [2022-10-17 10:58:25,415 INFO L231 Difference]: Finished difference. Result has 303 places, 299 transitions, 840 flow [2022-10-17 10:58:25,416 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=840, PETRI_PLACES=303, PETRI_TRANSITIONS=299} [2022-10-17 10:58:25,418 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, 19 predicate places. [2022-10-17 10:58:25,418 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 299 transitions, 840 flow [2022-10-17 10:58:25,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 243.55555555555554) internal successors, (2192), 9 states have internal predecessors, (2192), 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) [2022-10-17 10:58:25,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:25,420 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:25,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:25,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-17 10:58:25,635 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-10-17 10:58:25,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:25,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1786427132, now seen corresponding path program 1 times [2022-10-17 10:58:25,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:25,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676509586] [2022-10-17 10:58:25,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:25,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:25,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:26,033 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 10:58:26,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676509586] [2022-10-17 10:58:26,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676509586] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:26,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687335245] [2022-10-17 10:58:26,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:26,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:26,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:26,035 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:26,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:58:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:26,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:58:26,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 10:58:26,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:26,974 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 10:58:26,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687335245] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:26,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-17 10:58:26,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-10-17 10:58:26,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026188205] [2022-10-17 10:58:26,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:26,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:58:26,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:26,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:58:26,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:58:26,981 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 315 [2022-10-17 10:58:26,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 299 transitions, 840 flow. Second operand has 9 states, 9 states have (on average 239.77777777777777) internal successors, (2158), 9 states have internal predecessors, (2158), 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) [2022-10-17 10:58:26,984 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:26,984 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 315 [2022-10-17 10:58:26,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:28,013 INFO L130 PetriNetUnfolder]: 1352/3191 cut-off events. [2022-10-17 10:58:28,014 INFO L131 PetriNetUnfolder]: For 1676/2026 co-relation queries the response was YES. [2022-10-17 10:58:28,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6975 conditions, 3191 events. 1352/3191 cut-off events. For 1676/2026 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 21713 event pairs, 315 based on Foata normal form. 379/3354 useless extension candidates. Maximal degree in co-relation 6959. Up to 1235 conditions per place. [2022-10-17 10:58:28,047 INFO L137 encePairwiseOnDemand]: 304/315 looper letters, 85 selfloop transitions, 10 changer transitions 0/312 dead transitions. [2022-10-17 10:58:28,047 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 312 transitions, 1080 flow [2022-10-17 10:58:28,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:58:28,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-10-17 10:58:28,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2409 transitions. [2022-10-17 10:58:28,056 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7647619047619048 [2022-10-17 10:58:28,056 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2409 transitions. [2022-10-17 10:58:28,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2409 transitions. [2022-10-17 10:58:28,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:28,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2409 transitions. [2022-10-17 10:58:28,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 240.9) internal successors, (2409), 10 states have internal predecessors, (2409), 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) [2022-10-17 10:58:28,072 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 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) [2022-10-17 10:58:28,074 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 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) [2022-10-17 10:58:28,074 INFO L175 Difference]: Start difference. First operand has 303 places, 299 transitions, 840 flow. Second operand 10 states and 2409 transitions. [2022-10-17 10:58:28,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 312 transitions, 1080 flow [2022-10-17 10:58:28,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 312 transitions, 1069 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-10-17 10:58:28,091 INFO L231 Difference]: Finished difference. Result has 310 places, 300 transitions, 863 flow [2022-10-17 10:58:28,092 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=863, PETRI_PLACES=310, PETRI_TRANSITIONS=300} [2022-10-17 10:58:28,092 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, 26 predicate places. [2022-10-17 10:58:28,092 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 300 transitions, 863 flow [2022-10-17 10:58:28,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 239.77777777777777) internal successors, (2158), 9 states have internal predecessors, (2158), 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) [2022-10-17 10:58:28,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:28,094 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:28,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:28,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:28,307 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-10-17 10:58:28,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:28,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1542236568, now seen corresponding path program 1 times [2022-10-17 10:58:28,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:28,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432839112] [2022-10-17 10:58:28,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:28,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:28,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 10:58:28,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:58:28,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432839112] [2022-10-17 10:58:28,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432839112] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:28,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742418380] [2022-10-17 10:58:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:28,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:28,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:58:28,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:58:28,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:58:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:58:28,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:58:28,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:58:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 10:58:29,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:58:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-17 10:58:29,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742418380] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-17 10:58:29,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-17 10:58:29,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9, 9] total 19 [2022-10-17 10:58:29,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505815996] [2022-10-17 10:58:29,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:58:29,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-17 10:58:29,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:58:29,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-17 10:58:29,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:58:29,676 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 315 [2022-10-17 10:58:29,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 300 transitions, 863 flow. Second operand has 9 states, 9 states have (on average 242.66666666666666) internal successors, (2184), 9 states have internal predecessors, (2184), 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) [2022-10-17 10:58:29,679 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:58:29,679 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 315 [2022-10-17 10:58:29,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:58:30,369 INFO L130 PetriNetUnfolder]: 778/1843 cut-off events. [2022-10-17 10:58:30,370 INFO L131 PetriNetUnfolder]: For 1532/1944 co-relation queries the response was YES. [2022-10-17 10:58:30,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4133 conditions, 1843 events. 778/1843 cut-off events. For 1532/1944 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10345 event pairs, 159 based on Foata normal form. 437/2091 useless extension candidates. Maximal degree in co-relation 4115. Up to 756 conditions per place. [2022-10-17 10:58:30,393 INFO L137 encePairwiseOnDemand]: 304/315 looper letters, 81 selfloop transitions, 10 changer transitions 0/309 dead transitions. [2022-10-17 10:58:30,393 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 309 transitions, 1077 flow [2022-10-17 10:58:30,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:58:30,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-10-17 10:58:30,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2435 transitions. [2022-10-17 10:58:30,402 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.773015873015873 [2022-10-17 10:58:30,403 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2435 transitions. [2022-10-17 10:58:30,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2435 transitions. [2022-10-17 10:58:30,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:58:30,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2435 transitions. [2022-10-17 10:58:30,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 243.5) internal successors, (2435), 10 states have internal predecessors, (2435), 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) [2022-10-17 10:58:30,421 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 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) [2022-10-17 10:58:30,422 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 315.0) internal successors, (3465), 11 states have internal predecessors, (3465), 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) [2022-10-17 10:58:30,422 INFO L175 Difference]: Start difference. First operand has 310 places, 300 transitions, 863 flow. Second operand 10 states and 2435 transitions. [2022-10-17 10:58:30,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 309 transitions, 1077 flow [2022-10-17 10:58:30,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 309 transitions, 1060 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-10-17 10:58:30,436 INFO L231 Difference]: Finished difference. Result has 312 places, 299 transitions, 871 flow [2022-10-17 10:58:30,437 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=315, PETRI_DIFFERENCE_MINUEND_FLOW=838, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=871, PETRI_PLACES=312, PETRI_TRANSITIONS=299} [2022-10-17 10:58:30,440 INFO L287 CegarLoopForPetriNet]: 284 programPoint places, 28 predicate places. [2022-10-17 10:58:30,440 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 299 transitions, 871 flow [2022-10-17 10:58:30,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 242.66666666666666) internal successors, (2184), 9 states have internal predecessors, (2184), 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) [2022-10-17 10:58:30,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:58:30,442 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:58:30,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:58:30,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290fcbe1-5378-423d-9d3c-09a6a3bf2cbb/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:58:30,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-10-17 10:58:30,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:58:30,655 INFO L85 PathProgramCache]: Analyzing trace with hash -628796937, now seen corresponding path program 1 times [2022-10-17 10:58:30,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:58:30,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470326025] [2022-10-17 10:58:30,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:58:30,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:58:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat