./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i --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_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/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_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix023_tso.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/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_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/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 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 --- 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 10:53:20,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:53:20,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:53:20,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:53:20,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:53:20,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:53:20,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:53:20,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:53:20,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:53:20,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:53:20,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:53:20,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:53:20,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:53:20,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:53:20,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:53:20,913 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:53:20,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:53:20,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:53:20,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:53:20,932 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:53:20,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:53:20,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:53:20,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:53:20,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:53:20,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:53:20,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:53:20,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:53:20,955 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:53:20,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:53:20,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:53:20,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:53:20,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:53:20,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:53:20,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:53:20,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:53:20,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:53:20,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:53:20,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:53:20,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:53:20,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:53:20,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:53:20,979 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:53:21,041 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:53:21,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:53:21,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:53:21,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:53:21,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:53:21,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:53:21,045 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:53:21,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:53:21,045 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:53:21,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:53:21,047 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:53:21,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:53:21,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:53:21,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:53:21,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:53:21,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:53:21,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:53:21,049 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:53:21,049 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:53:21,049 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:53:21,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:53:21,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:53:21,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:53:21,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:53:21,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:21,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:53:21,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:53:21,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:53:21,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:53:21,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:53:21,053 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:53:21,053 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:53:21,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:53:21,054 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_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 [2022-10-17 10:53:21,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:53:21,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:53:21,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:53:21,406 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:53:21,407 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:53:21,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/pthread-wmm/mix023_tso.i [2022-10-17 10:53:21,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/data/158184107/37698af364c345caa7bb215c5e13bc83/FLAGd229d0886 [2022-10-17 10:53:22,091 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:53:22,097 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/sv-benchmarks/c/pthread-wmm/mix023_tso.i [2022-10-17 10:53:22,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/data/158184107/37698af364c345caa7bb215c5e13bc83/FLAGd229d0886 [2022-10-17 10:53:22,352 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/data/158184107/37698af364c345caa7bb215c5e13bc83 [2022-10-17 10:53:22,355 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:53:22,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:53:22,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:22,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:53:22,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:53:22,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:22" (1/1) ... [2022-10-17 10:53:22,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c6609f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:22, skipping insertion in model container [2022-10-17 10:53:22,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:22" (1/1) ... [2022-10-17 10:53:22,377 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:53:22,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:53:22,687 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_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/sv-benchmarks/c/pthread-wmm/mix023_tso.i[944,957] [2022-10-17 10:53:23,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:23,157 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:53:23,180 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_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/sv-benchmarks/c/pthread-wmm/mix023_tso.i[944,957] [2022-10-17 10:53:23,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:23,349 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:53:23,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23 WrapperNode [2022-10-17 10:53:23,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:23,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:23,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:53:23,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:53:23,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,466 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 730 [2022-10-17 10:53:23,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:23,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:53:23,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:53:23,468 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:53:23,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,534 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:53:23,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:53:23,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:53:23,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:53:23,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (1/1) ... [2022-10-17 10:53:23,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:23,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:23,592 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:53:23,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae026453-1b0e-4ec5-8e24-f1adf008ce6f/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:53:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:53:23,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-10-17 10:53:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:53:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:53:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:53:23,648 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-10-17 10:53:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-10-17 10:53:23,649 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-10-17 10:53:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-10-17 10:53:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-10-17 10:53:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-10-17 10:53:23,650 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-10-17 10:53:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-10-17 10:53:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:53:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-10-17 10:53:23,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:53:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:53:23,654 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 10:53:23,990 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:53:23,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:53:25,605 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:53:27,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:53:27,015 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:53:27,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:27 BoogieIcfgContainer [2022-10-17 10:53:27,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:53:27,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:53:27,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:53:27,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:53:27,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:53:22" (1/3) ... [2022-10-17 10:53:27,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3d500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:27, skipping insertion in model container [2022-10-17 10:53:27,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:23" (2/3) ... [2022-10-17 10:53:27,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3d500 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:27, skipping insertion in model container [2022-10-17 10:53:27,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:27" (3/3) ... [2022-10-17 10:53:27,055 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_tso.i [2022-10-17 10:53:27,068 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:53:27,080 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:53:27,081 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 10:53:27,081 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:53:27,232 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:53:27,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 169 places, 158 transitions, 336 flow [2022-10-17 10:53:27,429 INFO L130 PetriNetUnfolder]: 2/154 cut-off events. [2022-10-17 10:53:27,430 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:53:27,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 167 conditions, 154 events. 2/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 78 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 94. Up to 2 conditions per place. [2022-10-17 10:53:27,436 INFO L82 GeneralOperation]: Start removeDead. Operand has 169 places, 158 transitions, 336 flow [2022-10-17 10:53:27,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 165 places, 154 transitions, 320 flow [2022-10-17 10:53:27,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:53:27,466 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;@4893372c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:53:27,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2022-10-17 10:53:27,486 INFO L130 PetriNetUnfolder]: 0/84 cut-off events. [2022-10-17 10:53:27,487 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:53:27,487 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:53:27,488 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] [2022-10-17 10:53:27,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-10-17 10:53:27,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1862256623, now seen corresponding path program 1 times [2022-10-17 10:53:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:27,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183881132] [2022-10-17 10:53:27,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:27,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:28,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:28,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183881132] [2022-10-17 10:53:28,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183881132] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:28,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:28,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:53:28,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263073389] [2022-10-17 10:53:28,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:28,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:53:28,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:28,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:53:28,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:53:28,433 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 158 [2022-10-17 10:53:28,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 154 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 10:53:28,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:53:28,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 158 [2022-10-17 10:53:28,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:53:30,023 INFO L130 PetriNetUnfolder]: 572/2892 cut-off events. [2022-10-17 10:53:30,023 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-10-17 10:53:30,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3791 conditions, 2892 events. 572/2892 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 27221 event pairs, 409 based on Foata normal form. 101/2774 useless extension candidates. Maximal degree in co-relation 3715. Up to 676 conditions per place. [2022-10-17 10:53:30,073 INFO L137 encePairwiseOnDemand]: 153/158 looper letters, 24 selfloop transitions, 2 changer transitions 0/160 dead transitions. [2022-10-17 10:53:30,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 160 transitions, 390 flow [2022-10-17 10:53:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:53:30,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:53:30,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2022-10-17 10:53:30,104 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9388185654008439 [2022-10-17 10:53:30,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 445 transitions. [2022-10-17 10:53:30,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 445 transitions. [2022-10-17 10:53:30,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:53:30,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 445 transitions. [2022-10-17 10:53:30,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 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 10:53:30,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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 10:53:30,133 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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 10:53:30,135 INFO L175 Difference]: Start difference. First operand has 165 places, 154 transitions, 320 flow. Second operand 3 states and 445 transitions. [2022-10-17 10:53:30,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 160 transitions, 390 flow [2022-10-17 10:53:30,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 160 transitions, 384 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-10-17 10:53:30,151 INFO L231 Difference]: Finished difference. Result has 161 places, 150 transitions, 312 flow [2022-10-17 10:53:30,154 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=161, PETRI_TRANSITIONS=150} [2022-10-17 10:53:30,160 INFO L287 CegarLoopForPetriNet]: 165 programPoint places, -4 predicate places. [2022-10-17 10:53:30,160 INFO L495 AbstractCegarLoop]: Abstraction has has 161 places, 150 transitions, 312 flow [2022-10-17 10:53:30,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 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 10:53:30,161 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:53:30,162 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] [2022-10-17 10:53:30,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:53:30,162 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-10-17 10:53:30,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1337573504, now seen corresponding path program 1 times [2022-10-17 10:53:30,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:30,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240114134] [2022-10-17 10:53:30,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:30,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,532 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 10:53:30,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:30,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240114134] [2022-10-17 10:53:30,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240114134] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:30,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:30,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:53:30,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933854093] [2022-10-17 10:53:30,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:30,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:53:30,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:53:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:53:30,545 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 158 [2022-10-17 10:53:30,550 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 150 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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 10:53:30,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:53:30,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 158 [2022-10-17 10:53:30,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:53:31,708 INFO L130 PetriNetUnfolder]: 456/2295 cut-off events. [2022-10-17 10:53:31,708 INFO L131 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2022-10-17 10:53:31,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3082 conditions, 2295 events. 456/2295 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 20442 event pairs, 172 based on Foata normal form. 0/2181 useless extension candidates. Maximal degree in co-relation 3008. Up to 493 conditions per place. [2022-10-17 10:53:31,737 INFO L137 encePairwiseOnDemand]: 155/158 looper letters, 20 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2022-10-17 10:53:31,737 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 156 transitions, 370 flow [2022-10-17 10:53:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:53:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:53:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2022-10-17 10:53:31,741 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9219409282700421 [2022-10-17 10:53:31,741 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2022-10-17 10:53:31,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2022-10-17 10:53:31,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:53:31,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2022-10-17 10:53:31,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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 10:53:31,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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 10:53:31,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 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 10:53:31,748 INFO L175 Difference]: Start difference. First operand has 161 places, 150 transitions, 312 flow. Second operand 3 states and 437 transitions. [2022-10-17 10:53:31,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 156 transitions, 370 flow [2022-10-17 10:53:31,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 156 transitions, 364 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:53:31,758 INFO L231 Difference]: Finished difference. Result has 160 places, 149 transitions, 310 flow [2022-10-17 10:53:31,759 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=160, PETRI_TRANSITIONS=149} [2022-10-17 10:53:31,760 INFO L287 CegarLoopForPetriNet]: 165 programPoint places, -5 predicate places. [2022-10-17 10:53:31,760 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 149 transitions, 310 flow [2022-10-17 10:53:31,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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 10:53:31,761 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:53:31,762 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] [2022-10-17 10:53:31,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:53:31,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-10-17 10:53:31,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:31,764 INFO L85 PathProgramCache]: Analyzing trace with hash 198422858, now seen corresponding path program 1 times [2022-10-17 10:53:31,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:31,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503306545] [2022-10-17 10:53:31,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:31,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:33,461 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 10:53:33,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:33,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503306545] [2022-10-17 10:53:33,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503306545] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:33,464 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:33,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-17 10:53:33,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336368378] [2022-10-17 10:53:33,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:33,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:53:33,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:33,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:53:33,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:53:33,474 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 158 [2022-10-17 10:53:33,477 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 149 transitions, 310 flow. Second operand has 11 states, 11 states have (on average 128.45454545454547) internal successors, (1413), 11 states have internal predecessors, (1413), 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 10:53:33,477 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:53:33,477 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 158 [2022-10-17 10:53:33,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:53:37,158 INFO L130 PetriNetUnfolder]: 3072/7530 cut-off events. [2022-10-17 10:53:37,159 INFO L131 PetriNetUnfolder]: For 264/264 co-relation queries the response was YES. [2022-10-17 10:53:37,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12188 conditions, 7530 events. 3072/7530 cut-off events. For 264/264 co-relation queries the response was YES. Maximal size of possible extension queue 415. Compared 69638 event pairs, 706 based on Foata normal form. 0/7332 useless extension candidates. Maximal degree in co-relation 12109. Up to 2540 conditions per place. [2022-10-17 10:53:37,223 INFO L137 encePairwiseOnDemand]: 145/158 looper letters, 30 selfloop transitions, 11 changer transitions 90/241 dead transitions. [2022-10-17 10:53:37,223 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 241 transitions, 746 flow [2022-10-17 10:53:37,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-17 10:53:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-10-17 10:53:37,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2153 transitions. [2022-10-17 10:53:37,231 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8516613924050633 [2022-10-17 10:53:37,232 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2153 transitions. [2022-10-17 10:53:37,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2153 transitions. [2022-10-17 10:53:37,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:53:37,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2153 transitions. [2022-10-17 10:53:37,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 134.5625) internal successors, (2153), 16 states have internal predecessors, (2153), 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 10:53:37,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 158.0) internal successors, (2686), 17 states have internal predecessors, (2686), 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 10:53:37,252 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 158.0) internal successors, (2686), 17 states have internal predecessors, (2686), 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 10:53:37,253 INFO L175 Difference]: Start difference. First operand has 160 places, 149 transitions, 310 flow. Second operand 16 states and 2153 transitions. [2022-10-17 10:53:37,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 241 transitions, 746 flow [2022-10-17 10:53:37,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 241 transitions, 728 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:53:37,261 INFO L231 Difference]: Finished difference. Result has 184 places, 141 transitions, 364 flow [2022-10-17 10:53:37,262 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=364, PETRI_PLACES=184, PETRI_TRANSITIONS=141} [2022-10-17 10:53:37,263 INFO L287 CegarLoopForPetriNet]: 165 programPoint places, 19 predicate places. [2022-10-17 10:53:37,263 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 141 transitions, 364 flow [2022-10-17 10:53:37,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 128.45454545454547) internal successors, (1413), 11 states have internal predecessors, (1413), 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 10:53:37,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:53:37,266 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] [2022-10-17 10:53:37,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:53:37,266 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-10-17 10:53:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1371618700, now seen corresponding path program 1 times [2022-10-17 10:53:37,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:37,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509623804] [2022-10-17 10:53:37,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:37,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:37,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:37,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509623804] [2022-10-17 10:53:37,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509623804] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:37,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:37,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:53:37,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706820524] [2022-10-17 10:53:37,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:37,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:53:37,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:37,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:53:37,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:53:37,806 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 158 [2022-10-17 10:53:37,808 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 141 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 134.16666666666666) internal successors, (805), 6 states have internal predecessors, (805), 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 10:53:37,808 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:53:37,809 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 158 [2022-10-17 10:53:37,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:53:40,159 INFO L130 PetriNetUnfolder]: 1652/3392 cut-off events. [2022-10-17 10:53:40,159 INFO L131 PetriNetUnfolder]: For 4932/5328 co-relation queries the response was YES. [2022-10-17 10:53:40,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8513 conditions, 3392 events. 1652/3392 cut-off events. For 4932/5328 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 25683 event pairs, 276 based on Foata normal form. 88/3427 useless extension candidates. Maximal degree in co-relation 8422. Up to 1009 conditions per place. [2022-10-17 10:53:40,204 INFO L137 encePairwiseOnDemand]: 152/158 looper letters, 59 selfloop transitions, 11 changer transitions 12/199 dead transitions. [2022-10-17 10:53:40,204 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 199 transitions, 803 flow [2022-10-17 10:53:40,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:53:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-10-17 10:53:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1264 transitions. [2022-10-17 10:53:40,209 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2022-10-17 10:53:40,210 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1264 transitions. [2022-10-17 10:53:40,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1264 transitions. [2022-10-17 10:53:40,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:53:40,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1264 transitions. [2022-10-17 10:53:40,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 140.44444444444446) internal successors, (1264), 9 states have internal predecessors, (1264), 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 10:53:40,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 158.0) internal successors, (1580), 10 states have internal predecessors, (1580), 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 10:53:40,220 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 158.0) internal successors, (1580), 10 states have internal predecessors, (1580), 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 10:53:40,220 INFO L175 Difference]: Start difference. First operand has 184 places, 141 transitions, 364 flow. Second operand 9 states and 1264 transitions. [2022-10-17 10:53:40,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 199 transitions, 803 flow [2022-10-17 10:53:40,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 199 transitions, 783 flow, removed 7 selfloop flow, removed 6 redundant places. [2022-10-17 10:53:40,243 INFO L231 Difference]: Finished difference. Result has 166 places, 150 transitions, 435 flow [2022-10-17 10:53:40,244 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=435, PETRI_PLACES=166, PETRI_TRANSITIONS=150} [2022-10-17 10:53:40,245 INFO L287 CegarLoopForPetriNet]: 165 programPoint places, 1 predicate places. [2022-10-17 10:53:40,245 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 150 transitions, 435 flow [2022-10-17 10:53:40,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 134.16666666666666) internal successors, (805), 6 states have internal predecessors, (805), 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 10:53:40,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:53:40,246 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] [2022-10-17 10:53:40,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:53:40,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-10-17 10:53:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:40,248 INFO L85 PathProgramCache]: Analyzing trace with hash -2056179783, now seen corresponding path program 1 times [2022-10-17 10:53:40,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:40,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744737644] [2022-10-17 10:53:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:40,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:41,825 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 10:53:41,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:41,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744737644] [2022-10-17 10:53:41,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744737644] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:41,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:41,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-10-17 10:53:41,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601183341] [2022-10-17 10:53:41,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:41,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-17 10:53:41,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:41,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-17 10:53:41,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:53:41,831 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 127 out of 158 [2022-10-17 10:53:41,833 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 150 transitions, 435 flow. Second operand has 10 states, 10 states have (on average 128.9) internal successors, (1289), 10 states have internal predecessors, (1289), 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 10:53:41,833 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:53:41,833 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 127 of 158 [2022-10-17 10:53:41,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:53:45,027 INFO L130 PetriNetUnfolder]: 2716/5274 cut-off events. [2022-10-17 10:53:45,027 INFO L131 PetriNetUnfolder]: For 7274/7719 co-relation queries the response was YES. [2022-10-17 10:53:45,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13673 conditions, 5274 events. 2716/5274 cut-off events. For 7274/7719 co-relation queries the response was YES. Maximal size of possible extension queue 414. Compared 41800 event pairs, 826 based on Foata normal form. 39/5203 useless extension candidates. Maximal degree in co-relation 13579. Up to 2362 conditions per place. [2022-10-17 10:53:45,086 INFO L137 encePairwiseOnDemand]: 146/158 looper letters, 31 selfloop transitions, 11 changer transitions 68/220 dead transitions. [2022-10-17 10:53:45,086 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 220 transitions, 980 flow [2022-10-17 10:53:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-17 10:53:45,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-10-17 10:53:45,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1869 transitions. [2022-10-17 10:53:45,095 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8449367088607594 [2022-10-17 10:53:45,096 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1869 transitions. [2022-10-17 10:53:45,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1869 transitions. [2022-10-17 10:53:45,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:53:45,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1869 transitions. [2022-10-17 10:53:45,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 133.5) internal successors, (1869), 14 states have internal predecessors, (1869), 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 10:53:45,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 158.0) internal successors, (2370), 15 states have internal predecessors, (2370), 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 10:53:45,112 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 158.0) internal successors, (2370), 15 states have internal predecessors, (2370), 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 10:53:45,112 INFO L175 Difference]: Start difference. First operand has 166 places, 150 transitions, 435 flow. Second operand 14 states and 1869 transitions. [2022-10-17 10:53:45,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 220 transitions, 980 flow [2022-10-17 10:53:45,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 220 transitions, 980 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-10-17 10:53:45,143 INFO L231 Difference]: Finished difference. Result has 186 places, 142 transitions, 434 flow [2022-10-17 10:53:45,144 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=434, PETRI_PLACES=186, PETRI_TRANSITIONS=142} [2022-10-17 10:53:45,148 INFO L287 CegarLoopForPetriNet]: 165 programPoint places, 21 predicate places. [2022-10-17 10:53:45,148 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 142 transitions, 434 flow [2022-10-17 10:53:45,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 128.9) internal successors, (1289), 10 states have internal predecessors, (1289), 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 10:53:45,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:53:45,149 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] [2022-10-17 10:53:45,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:53:45,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-10-17 10:53:45,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:45,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1366707189, now seen corresponding path program 1 times [2022-10-17 10:53:45,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:45,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455815034] [2022-10-17 10:53:45,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:45,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:47,147 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 10:53:47,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:47,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455815034] [2022-10-17 10:53:47,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455815034] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:47,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:47,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-10-17 10:53:47,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742286475] [2022-10-17 10:53:47,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:47,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:53:47,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:47,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:53:47,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:53:47,154 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 158 [2022-10-17 10:53:47,156 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 142 transitions, 434 flow. Second operand has 12 states, 12 states have (on average 127.66666666666667) internal successors, (1532), 12 states have internal predecessors, (1532), 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 10:53:47,156 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:53:47,156 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 158 [2022-10-17 10:53:47,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:53:48,971 INFO L130 PetriNetUnfolder]: 1116/2244 cut-off events. [2022-10-17 10:53:48,972 INFO L131 PetriNetUnfolder]: For 7174/7627 co-relation queries the response was YES. [2022-10-17 10:53:48,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6971 conditions, 2244 events. 1116/2244 cut-off events. For 7174/7627 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 14471 event pairs, 166 based on Foata normal form. 33/2191 useless extension candidates. Maximal degree in co-relation 6863. Up to 1039 conditions per place. [2022-10-17 10:53:48,999 INFO L137 encePairwiseOnDemand]: 146/158 looper letters, 42 selfloop transitions, 10 changer transitions 47/208 dead transitions. [2022-10-17 10:53:48,999 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 208 transitions, 963 flow [2022-10-17 10:53:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-17 10:53:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-10-17 10:53:49,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2365 transitions. [2022-10-17 10:53:49,007 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8315752461322081 [2022-10-17 10:53:49,008 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2365 transitions. [2022-10-17 10:53:49,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2365 transitions. [2022-10-17 10:53:49,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:53:49,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2365 transitions. [2022-10-17 10:53:49,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 131.38888888888889) internal successors, (2365), 18 states have internal predecessors, (2365), 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 10:53:49,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 158.0) internal successors, (3002), 19 states have internal predecessors, (3002), 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 10:53:49,026 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 158.0) internal successors, (3002), 19 states have internal predecessors, (3002), 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 10:53:49,026 INFO L175 Difference]: Start difference. First operand has 186 places, 142 transitions, 434 flow. Second operand 18 states and 2365 transitions. [2022-10-17 10:53:49,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 208 transitions, 963 flow [2022-10-17 10:53:49,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 208 transitions, 876 flow, removed 30 selfloop flow, removed 13 redundant places. [2022-10-17 10:53:49,046 INFO L231 Difference]: Finished difference. Result has 189 places, 144 transitions, 456 flow [2022-10-17 10:53:49,046 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=158, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=456, PETRI_PLACES=189, PETRI_TRANSITIONS=144} [2022-10-17 10:53:49,047 INFO L287 CegarLoopForPetriNet]: 165 programPoint places, 24 predicate places. [2022-10-17 10:53:49,047 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 144 transitions, 456 flow [2022-10-17 10:53:49,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 127.66666666666667) internal successors, (1532), 12 states have internal predecessors, (1532), 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 10:53:49,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:53:49,049 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] [2022-10-17 10:53:49,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:53:49,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2022-10-17 10:53:49,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:49,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1494514200, now seen corresponding path program 1 times [2022-10-17 10:53:49,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:49,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619942900] [2022-10-17 10:53:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:49,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat