./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.01.cil.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_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/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_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/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_d7f015fe-adde-4e1b-a8d8-333797710f0a/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 ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe --- 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 10:24:41,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:24:41,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:24:41,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:24:41,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:24:41,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:24:41,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:24:41,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:24:41,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:24:41,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:24:41,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:24:41,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:24:41,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:24:41,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:24:41,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:24:41,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:24:41,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:24:41,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:24:41,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:24:41,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:24:41,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:24:41,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:24:41,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:24:41,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:24:41,853 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:24:41,853 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:24:41,854 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:24:41,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:24:41,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:24:41,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:24:41,859 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:24:41,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:24:41,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:24:41,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:24:41,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:24:41,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:24:41,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:24:41,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:24:41,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:24:41,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:24:41,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:24:41,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:24:41,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:24:41,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:24:41,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:24:41,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:24:41,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:24:41,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:24:41,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:24:41,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:24:41,921 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:24:41,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:24:41,922 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:24:41,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:24:41,922 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:24:41,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:24:41,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:24:41,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:24:41,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:24:41,923 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:24:41,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:24:41,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:24:41,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:24:41,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:24:41,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:24:41,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:24:41,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:24:41,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:24:41,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:24:41,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:24:41,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:24:41,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:24:41,927 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:24:41,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:24:41,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:24:41,928 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_d7f015fe-adde-4e1b-a8d8-333797710f0a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b00cb6ed3e05e0ac7861fb220a62ceca6ba97bc4fe703ce3eb0d0ec5cbfe [2022-10-17 10:24:42,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:24:42,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:24:42,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:24:42,302 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:24:42,303 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:24:42,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/systemc/transmitter.01.cil.c [2022-10-17 10:24:42,366 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/data/4c000089a/726f949a54f648b19c23c7c24b7e39a2/FLAG13853b39c [2022-10-17 10:24:42,881 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:24:42,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/sv-benchmarks/c/systemc/transmitter.01.cil.c [2022-10-17 10:24:42,899 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/data/4c000089a/726f949a54f648b19c23c7c24b7e39a2/FLAG13853b39c [2022-10-17 10:24:43,224 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/data/4c000089a/726f949a54f648b19c23c7c24b7e39a2 [2022-10-17 10:24:43,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:24:43,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:24:43,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:24:43,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:24:43,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:24:43,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b6f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43, skipping insertion in model container [2022-10-17 10:24:43,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:24:43,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:24:43,455 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_d7f015fe-adde-4e1b-a8d8-333797710f0a/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2022-10-17 10:24:43,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:24:43,536 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:24:43,548 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_d7f015fe-adde-4e1b-a8d8-333797710f0a/sv-benchmarks/c/systemc/transmitter.01.cil.c[706,719] [2022-10-17 10:24:43,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:24:43,588 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:24:43,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43 WrapperNode [2022-10-17 10:24:43,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:24:43,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:24:43,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:24:43,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:24:43,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,642 INFO L138 Inliner]: procedures = 30, calls = 33, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 209 [2022-10-17 10:24:43,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:24:43,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:24:43,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:24:43,644 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:24:43,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:24:43,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:24:43,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:24:43,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:24:43,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (1/1) ... [2022-10-17 10:24:43,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:24:43,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:24:43,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:24:43,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:24:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:24:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-17 10:24:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-17 10:24:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-17 10:24:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-17 10:24:43,767 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-17 10:24:43,767 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-17 10:24:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-17 10:24:43,768 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-17 10:24:43,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:24:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-17 10:24:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-17 10:24:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:24:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:24:43,879 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:24:43,895 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:24:44,292 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:24:44,301 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:24:44,306 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-17 10:24:44,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:24:44 BoogieIcfgContainer [2022-10-17 10:24:44,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:24:44,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:24:44,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:24:44,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:24:44,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:24:43" (1/3) ... [2022-10-17 10:24:44,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69de2fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:24:44, skipping insertion in model container [2022-10-17 10:24:44,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:24:43" (2/3) ... [2022-10-17 10:24:44,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69de2fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:24:44, skipping insertion in model container [2022-10-17 10:24:44,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:24:44" (3/3) ... [2022-10-17 10:24:44,320 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2022-10-17 10:24:44,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:24:44,344 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:24:44,424 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:24:44,432 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;@4c599c71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:24:44,433 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:24:44,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 80 states have (on average 1.525) internal successors, (122), 82 states have internal predecessors, (122), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-17 10:24:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:44,460 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:44,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:44,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:44,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:44,471 INFO L85 PathProgramCache]: Analyzing trace with hash -20293138, now seen corresponding path program 1 times [2022-10-17 10:24:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:44,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610884728] [2022-10-17 10:24:44,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:44,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,158 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 10:24:45,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:45,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610884728] [2022-10-17 10:24:45,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610884728] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:45,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:45,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:24:45,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378619567] [2022-10-17 10:24:45,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:45,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:24:45,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:45,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:24:45,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:24:45,206 INFO L87 Difference]: Start difference. First operand has 100 states, 80 states have (on average 1.525) internal successors, (122), 82 states have internal predecessors, (122), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:45,737 INFO L93 Difference]: Finished difference Result 210 states and 318 transitions. [2022-10-17 10:24:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:24:45,739 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:45,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:45,750 INFO L225 Difference]: With dead ends: 210 [2022-10-17 10:24:45,751 INFO L226 Difference]: Without dead ends: 115 [2022-10-17 10:24:45,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:24:45,759 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 197 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:45,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 357 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:24:45,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-10-17 10:24:45,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 95. [2022-10-17 10:24:45,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 76 states have (on average 1.381578947368421) internal successors, (105), 77 states have internal predecessors, (105), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-17 10:24:45,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 131 transitions. [2022-10-17 10:24:45,818 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 131 transitions. Word has length 55 [2022-10-17 10:24:45,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:45,819 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 131 transitions. [2022-10-17 10:24:45,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 131 transitions. [2022-10-17 10:24:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:45,822 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:45,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:45,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:24:45,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:45,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash -917686416, now seen corresponding path program 1 times [2022-10-17 10:24:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:45,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224097288] [2022-10-17 10:24:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:45,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,049 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 10:24:46,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:46,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224097288] [2022-10-17 10:24:46,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224097288] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:46,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:46,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:24:46,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825659644] [2022-10-17 10:24:46,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:46,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:24:46,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:46,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:24:46,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:24:46,053 INFO L87 Difference]: Start difference. First operand 95 states and 131 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:46,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:46,751 INFO L93 Difference]: Finished difference Result 334 states and 477 transitions. [2022-10-17 10:24:46,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-17 10:24:46,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:46,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:46,762 INFO L225 Difference]: With dead ends: 334 [2022-10-17 10:24:46,763 INFO L226 Difference]: Without dead ends: 248 [2022-10-17 10:24:46,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:24:46,769 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 336 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:46,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 635 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:24:46,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2022-10-17 10:24:46,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 175. [2022-10-17 10:24:46,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 140 states have (on average 1.3928571428571428) internal successors, (195), 143 states have internal predecessors, (195), 22 states have call successors, (22), 10 states have call predecessors, (22), 12 states have return successors, (29), 23 states have call predecessors, (29), 22 states have call successors, (29) [2022-10-17 10:24:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 246 transitions. [2022-10-17 10:24:46,831 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 246 transitions. Word has length 55 [2022-10-17 10:24:46,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:46,832 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 246 transitions. [2022-10-17 10:24:46,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:46,833 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 246 transitions. [2022-10-17 10:24:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:46,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:46,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:46,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:24:46,843 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:46,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:46,844 INFO L85 PathProgramCache]: Analyzing trace with hash -669539922, now seen corresponding path program 1 times [2022-10-17 10:24:46,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:46,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796723561] [2022-10-17 10:24:46,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:46,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:46,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:46,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:24:46,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:46,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796723561] [2022-10-17 10:24:46,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796723561] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:46,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:46,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:24:46,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243593577] [2022-10-17 10:24:46,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:46,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:24:46,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:46,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:24:46,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:24:46,990 INFO L87 Difference]: Start difference. First operand 175 states and 246 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:47,504 INFO L93 Difference]: Finished difference Result 457 states and 644 transitions. [2022-10-17 10:24:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:24:47,504 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:47,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:47,510 INFO L225 Difference]: With dead ends: 457 [2022-10-17 10:24:47,510 INFO L226 Difference]: Without dead ends: 293 [2022-10-17 10:24:47,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:24:47,522 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 344 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:47,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 517 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:24:47,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2022-10-17 10:24:47,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 244. [2022-10-17 10:24:47,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 195 states have (on average 1.3743589743589744) internal successors, (268), 199 states have internal predecessors, (268), 31 states have call successors, (31), 15 states have call predecessors, (31), 17 states have return successors, (38), 31 states have call predecessors, (38), 31 states have call successors, (38) [2022-10-17 10:24:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 337 transitions. [2022-10-17 10:24:47,594 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 337 transitions. Word has length 55 [2022-10-17 10:24:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:47,595 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 337 transitions. [2022-10-17 10:24:47,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 337 transitions. [2022-10-17 10:24:47,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:47,599 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:47,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:47,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:24:47,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:47,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:47,600 INFO L85 PathProgramCache]: Analyzing trace with hash 455720047, now seen corresponding path program 1 times [2022-10-17 10:24:47,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:47,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727872495] [2022-10-17 10:24:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:47,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:47,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:47,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:47,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:47,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:47,797 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 10:24:47,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:47,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727872495] [2022-10-17 10:24:47,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727872495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:47,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:47,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:24:47,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454840754] [2022-10-17 10:24:47,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:47,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:24:47,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:47,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:24:47,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:24:47,800 INFO L87 Difference]: Start difference. First operand 244 states and 337 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:48,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:48,246 INFO L93 Difference]: Finished difference Result 519 states and 731 transitions. [2022-10-17 10:24:48,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-17 10:24:48,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:48,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:48,252 INFO L225 Difference]: With dead ends: 519 [2022-10-17 10:24:48,252 INFO L226 Difference]: Without dead ends: 286 [2022-10-17 10:24:48,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-10-17 10:24:48,265 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 155 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:48,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 455 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:24:48,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-10-17 10:24:48,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 247. [2022-10-17 10:24:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 198 states have (on average 1.3585858585858586) internal successors, (269), 202 states have internal predecessors, (269), 31 states have call successors, (31), 15 states have call predecessors, (31), 17 states have return successors, (38), 31 states have call predecessors, (38), 31 states have call successors, (38) [2022-10-17 10:24:48,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 338 transitions. [2022-10-17 10:24:48,324 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 338 transitions. Word has length 55 [2022-10-17 10:24:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:48,327 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 338 transitions. [2022-10-17 10:24:48,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:48,328 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 338 transitions. [2022-10-17 10:24:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:48,331 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:48,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:48,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:24:48,332 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:48,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:48,333 INFO L85 PathProgramCache]: Analyzing trace with hash 383333489, now seen corresponding path program 1 times [2022-10-17 10:24:48,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:48,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724841815] [2022-10-17 10:24:48,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:48,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:48,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:48,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:48,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:48,515 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 10:24:48,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:48,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724841815] [2022-10-17 10:24:48,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724841815] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:48,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:48,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:24:48,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574518550] [2022-10-17 10:24:48,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:48,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:24:48,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:48,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:24:48,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:24:48,519 INFO L87 Difference]: Start difference. First operand 247 states and 338 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:49,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:49,018 INFO L93 Difference]: Finished difference Result 531 states and 743 transitions. [2022-10-17 10:24:49,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:24:49,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:49,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:49,022 INFO L225 Difference]: With dead ends: 531 [2022-10-17 10:24:49,022 INFO L226 Difference]: Without dead ends: 295 [2022-10-17 10:24:49,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:24:49,025 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 119 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:49,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 449 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:24:49,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2022-10-17 10:24:49,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 256. [2022-10-17 10:24:49,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 207 states have (on average 1.3429951690821256) internal successors, (278), 211 states have internal predecessors, (278), 31 states have call successors, (31), 15 states have call predecessors, (31), 17 states have return successors, (38), 31 states have call predecessors, (38), 31 states have call successors, (38) [2022-10-17 10:24:49,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 347 transitions. [2022-10-17 10:24:49,073 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 347 transitions. Word has length 55 [2022-10-17 10:24:49,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:49,073 INFO L495 AbstractCegarLoop]: Abstraction has 256 states and 347 transitions. [2022-10-17 10:24:49,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:49,074 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 347 transitions. [2022-10-17 10:24:49,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:49,075 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:49,075 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:49,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:24:49,076 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:49,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1988405773, now seen corresponding path program 1 times [2022-10-17 10:24:49,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:49,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680704951] [2022-10-17 10:24:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:49,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:49,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:49,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:49,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,237 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 10:24:49,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:49,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680704951] [2022-10-17 10:24:49,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680704951] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:49,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:49,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:24:49,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511669049] [2022-10-17 10:24:49,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:49,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:24:49,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:49,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:24:49,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:24:49,241 INFO L87 Difference]: Start difference. First operand 256 states and 347 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:49,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:49,780 INFO L93 Difference]: Finished difference Result 654 states and 887 transitions. [2022-10-17 10:24:49,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-17 10:24:49,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:49,785 INFO L225 Difference]: With dead ends: 654 [2022-10-17 10:24:49,785 INFO L226 Difference]: Without dead ends: 476 [2022-10-17 10:24:49,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:24:49,802 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 366 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:49,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 402 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:24:49,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-10-17 10:24:49,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 411. [2022-10-17 10:24:49,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 337 states have (on average 1.3293768545994065) internal successors, (448), 343 states have internal predecessors, (448), 45 states have call successors, (45), 25 states have call predecessors, (45), 28 states have return successors, (50), 44 states have call predecessors, (50), 45 states have call successors, (50) [2022-10-17 10:24:49,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 543 transitions. [2022-10-17 10:24:49,872 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 543 transitions. Word has length 55 [2022-10-17 10:24:49,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:49,872 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 543 transitions. [2022-10-17 10:24:49,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 543 transitions. [2022-10-17 10:24:49,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:49,873 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:49,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:49,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:24:49,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:49,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash 501123189, now seen corresponding path program 1 times [2022-10-17 10:24:49,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:49,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016732583] [2022-10-17 10:24:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:49,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:49,990 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 10:24:49,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:49,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016732583] [2022-10-17 10:24:49,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016732583] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:49,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:49,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:24:49,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561962556] [2022-10-17 10:24:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:49,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:24:49,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:49,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:24:49,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:24:49,992 INFO L87 Difference]: Start difference. First operand 411 states and 543 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:50,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:50,289 INFO L93 Difference]: Finished difference Result 848 states and 1126 transitions. [2022-10-17 10:24:50,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:24:50,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:50,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:50,293 INFO L225 Difference]: With dead ends: 848 [2022-10-17 10:24:50,294 INFO L226 Difference]: Without dead ends: 448 [2022-10-17 10:24:50,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:24:50,296 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 220 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:50,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 319 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:24:50,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2022-10-17 10:24:50,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 410. [2022-10-17 10:24:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 336 states have (on average 1.2946428571428572) internal successors, (435), 342 states have internal predecessors, (435), 45 states have call successors, (45), 25 states have call predecessors, (45), 28 states have return successors, (50), 44 states have call predecessors, (50), 45 states have call successors, (50) [2022-10-17 10:24:50,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 530 transitions. [2022-10-17 10:24:50,370 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 530 transitions. Word has length 55 [2022-10-17 10:24:50,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:50,371 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 530 transitions. [2022-10-17 10:24:50,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 530 transitions. [2022-10-17 10:24:50,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-17 10:24:50,372 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:50,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:50,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:24:50,373 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:50,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:50,373 INFO L85 PathProgramCache]: Analyzing trace with hash 719977907, now seen corresponding path program 1 times [2022-10-17 10:24:50,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:50,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122568050] [2022-10-17 10:24:50,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:50,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:50,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:50,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:50,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:50,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:50,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:50,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:50,474 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 10:24:50,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:50,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122568050] [2022-10-17 10:24:50,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122568050] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:50,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:50,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:24:50,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436441775] [2022-10-17 10:24:50,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:50,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:24:50,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:50,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:24:50,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:24:50,478 INFO L87 Difference]: Start difference. First operand 410 states and 530 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:50,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:50,943 INFO L93 Difference]: Finished difference Result 1248 states and 1632 transitions. [2022-10-17 10:24:50,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-17 10:24:50,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 55 [2022-10-17 10:24:50,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:50,954 INFO L225 Difference]: With dead ends: 1248 [2022-10-17 10:24:50,955 INFO L226 Difference]: Without dead ends: 849 [2022-10-17 10:24:50,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:24:50,958 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 324 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:50,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 291 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:24:50,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-10-17 10:24:51,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 787. [2022-10-17 10:24:51,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 644 states have (on average 1.2763975155279503) internal successors, (822), 655 states have internal predecessors, (822), 85 states have call successors, (85), 50 states have call predecessors, (85), 57 states have return successors, (113), 85 states have call predecessors, (113), 85 states have call successors, (113) [2022-10-17 10:24:51,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1020 transitions. [2022-10-17 10:24:51,084 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1020 transitions. Word has length 55 [2022-10-17 10:24:51,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:51,085 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1020 transitions. [2022-10-17 10:24:51,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-17 10:24:51,086 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1020 transitions. [2022-10-17 10:24:51,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-17 10:24:51,087 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:51,087 INFO L195 NwaCegarLoop]: 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] [2022-10-17 10:24:51,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:24:51,088 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:51,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1595512707, now seen corresponding path program 1 times [2022-10-17 10:24:51,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:51,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78196482] [2022-10-17 10:24:51,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:51,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,171 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 10:24:51,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:51,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78196482] [2022-10-17 10:24:51,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78196482] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:51,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:51,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:24:51,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908576868] [2022-10-17 10:24:51,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:51,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:24:51,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:24:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:24:51,180 INFO L87 Difference]: Start difference. First operand 787 states and 1020 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-17 10:24:51,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:51,636 INFO L93 Difference]: Finished difference Result 2374 states and 3066 transitions. [2022-10-17 10:24:51,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:24:51,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 56 [2022-10-17 10:24:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:51,650 INFO L225 Difference]: With dead ends: 2374 [2022-10-17 10:24:51,650 INFO L226 Difference]: Without dead ends: 1601 [2022-10-17 10:24:51,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:24:51,658 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 264 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:51,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 276 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:24:51,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2022-10-17 10:24:51,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1471. [2022-10-17 10:24:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1193 states have (on average 1.2514668901927912) internal successors, (1493), 1213 states have internal predecessors, (1493), 163 states have call successors, (163), 100 states have call predecessors, (163), 114 states have return successors, (217), 161 states have call predecessors, (217), 163 states have call successors, (217) [2022-10-17 10:24:51,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1873 transitions. [2022-10-17 10:24:51,888 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1873 transitions. Word has length 56 [2022-10-17 10:24:51,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:51,888 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 1873 transitions. [2022-10-17 10:24:51,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-17 10:24:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1873 transitions. [2022-10-17 10:24:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-17 10:24:51,892 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:51,892 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-17 10:24:51,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:24:51,894 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:51,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1907953452, now seen corresponding path program 1 times [2022-10-17 10:24:51,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:51,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485760473] [2022-10-17 10:24:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:24:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:51,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-17 10:24:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:52,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-17 10:24:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:52,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-17 10:24:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:52,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-10-17 10:24:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:52,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:24:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:24:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 10:24:52,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:24:52,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485760473] [2022-10-17 10:24:52,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485760473] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:24:52,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:24:52,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:24:52,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192193466] [2022-10-17 10:24:52,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:24:52,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:24:52,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:24:52,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:24:52,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:24:52,036 INFO L87 Difference]: Start difference. First operand 1471 states and 1873 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:24:52,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:24:52,951 INFO L93 Difference]: Finished difference Result 4511 states and 5775 transitions. [2022-10-17 10:24:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-17 10:24:52,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 73 [2022-10-17 10:24:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:24:52,967 INFO L225 Difference]: With dead ends: 4511 [2022-10-17 10:24:52,967 INFO L226 Difference]: Without dead ends: 2340 [2022-10-17 10:24:52,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2022-10-17 10:24:52,974 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 500 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:24:52,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 529 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [139 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:24:52,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2340 states. [2022-10-17 10:24:53,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2340 to 2209. [2022-10-17 10:24:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1786 states have (on average 1.232922732362822) internal successors, (2202), 1825 states have internal predecessors, (2202), 241 states have call successors, (241), 150 states have call predecessors, (241), 181 states have return successors, (375), 237 states have call predecessors, (375), 241 states have call successors, (375) [2022-10-17 10:24:53,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 2818 transitions. [2022-10-17 10:24:53,257 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 2818 transitions. Word has length 73 [2022-10-17 10:24:53,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:24:53,259 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 2818 transitions. [2022-10-17 10:24:53,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-17 10:24:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 2818 transitions. [2022-10-17 10:24:53,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-10-17 10:24:53,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:24:53,269 INFO L195 NwaCegarLoop]: trace histogram [2, 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] [2022-10-17 10:24:53,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-17 10:24:53,270 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:24:53,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:24:53,271 INFO L85 PathProgramCache]: Analyzing trace with hash 175805213, now seen corresponding path program 1 times [2022-10-17 10:24:53,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:24:53,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595508575] [2022-10-17 10:24:53,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:24:53,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:24:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:24:53,297 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:24:53,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:24:53,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:24:53,349 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:24:53,351 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:24:53,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-17 10:24:53,358 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:24:53,362 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:24:53,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:24:53 BoogieIcfgContainer [2022-10-17 10:24:53,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:24:53,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:24:53,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:24:53,479 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:24:53,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:24:44" (3/4) ... [2022-10-17 10:24:53,482 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:24:53,563 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:24:53,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:24:53,564 INFO L158 Benchmark]: Toolchain (without parser) took 10336.03ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 55.2MB in the beginning and 66.2MB in the end (delta: -11.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-10-17 10:24:53,565 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 94.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:24:53,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.16ms. Allocated memory is still 94.4MB. Free memory was 55.0MB in the beginning and 66.0MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:24:53,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.99ms. Allocated memory is still 94.4MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:24:53,566 INFO L158 Benchmark]: Boogie Preprocessor took 31.58ms. Allocated memory is still 94.4MB. Free memory was 63.9MB in the beginning and 62.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:24:53,567 INFO L158 Benchmark]: RCFGBuilder took 633.70ms. Allocated memory is still 94.4MB. Free memory was 62.4MB in the beginning and 46.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 10:24:53,567 INFO L158 Benchmark]: TraceAbstraction took 9167.00ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 45.6MB in the beginning and 72.5MB in the end (delta: -26.8MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2022-10-17 10:24:53,567 INFO L158 Benchmark]: Witness Printer took 84.90ms. Allocated memory is still 167.8MB. Free memory was 72.5MB in the beginning and 66.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:24:53,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 94.4MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.16ms. Allocated memory is still 94.4MB. Free memory was 55.0MB in the beginning and 66.0MB in the end (delta: -11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.99ms. Allocated memory is still 94.4MB. Free memory was 66.0MB in the beginning and 63.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.58ms. Allocated memory is still 94.4MB. Free memory was 63.9MB in the beginning and 62.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 633.70ms. Allocated memory is still 94.4MB. Free memory was 62.4MB in the beginning and 46.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9167.00ms. Allocated memory was 94.4MB in the beginning and 167.8MB in the end (delta: 73.4MB). Free memory was 45.6MB in the beginning and 72.5MB in the end (delta: -26.8MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * Witness Printer took 84.90ms. Allocated memory is still 167.8MB. Free memory was 72.5MB in the beginning and 66.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int m_pc = 0; [L26] int t1_pc = 0; [L27] int m_st ; [L28] int t1_st ; [L29] int m_i ; [L30] int t1_i ; [L31] int M_E = 2; [L32] int T1_E = 2; [L33] int E_1 = 2; VAL [E_1=2, M_E=2, m_i=0, m_pc=0, m_st=0, T1_E=2, t1_i=0, t1_pc=0, t1_st=0] [L449] int __retres1 ; [L453] CALL init_model() [L364] m_i = 1 [L365] t1_i = 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L453] RET init_model() [L454] CALL start_simulation() [L390] int kernel_st ; [L391] int tmp ; [L392] int tmp___0 ; [L396] kernel_st = 0 VAL [E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L397] FCALL update_channels() VAL [E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L398] CALL init_threads() [L161] COND TRUE m_i == 1 [L162] m_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L166] COND TRUE t1_i == 1 [L167] t1_st = 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L398] RET init_threads() [L399] CALL fire_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L250] COND FALSE !(M_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L255] COND FALSE !(T1_E == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L260] COND FALSE !(E_1 == 0) VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L399] RET fire_delta_events() VAL [E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L400] CALL activate_threads() VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L293] int tmp ; [L294] int tmp___0 ; [L298] CALL, EXPR is_master_triggered() [L112] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L115] COND FALSE !(m_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L125] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L127] return (__retres1); VAL [\old(m_st)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L298] RET, EXPR is_master_triggered() [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0] [L306] CALL, EXPR is_transmit1_triggered() [L131] int __retres1 ; VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L134] COND FALSE !(t1_pc == 1) VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L144] __retres1 = 0 VAL [\old(m_st)=0, \old(t1_st)=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L146] return (__retres1); VAL [\old(m_st)=0, \old(t1_st)=0, \result=0, __retres1=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L306] RET, EXPR is_transmit1_triggered() [L306] tmp___0 = is_transmit1_triggered() [L308] COND FALSE !(\read(tmp___0)) VAL [\old(m_st)=0, \old(t1_st)=0, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=0, tmp___0=0] [L400] RET activate_threads() VAL [E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L401] CALL reset_delta_events() VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L273] COND FALSE !(M_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L278] COND FALSE !(T1_E == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L283] COND FALSE !(E_1 == 1) VAL [\old(E_1)=2, \old(M_E)=2, \old(T1_E)=2, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L401] RET reset_delta_events() VAL [E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L404] COND TRUE 1 VAL [E_1=2, kernel_st=0, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L407] kernel_st = 1 [L408] CALL eval() [L197] int tmp ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L201] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L176] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 VAL [__retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L192] return (__retres1); VAL [\result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND FALSE !(\read(tmp_ndt_1)) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=0, tmp=1, tmp_ndt_1=0] [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 [L231] CALL transmit1() [L82] COND TRUE t1_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L93] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=0, t1_st=1] [L95] t1_pc = 1 [L96] t1_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L231] RET transmit1() [L201] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L204] CALL, EXPR exists_runnable_thread() VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L176] int __retres1 ; VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L179] COND TRUE m_st == 0 [L180] __retres1 = 1 VAL [__retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L192] return (__retres1); VAL [\result=1, __retres1=1, E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L204] RET, EXPR exists_runnable_thread() VAL [E_1=2, exists_runnable_thread()=1, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L204] tmp = exists_runnable_thread() [L206] COND TRUE \read(tmp) VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=0, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=1, tmp_ndt_1=0, tmp_ndt_2=1] [L211] COND TRUE m_st == 0 [L212] int tmp_ndt_1; [L213] tmp_ndt_1 = __VERIFIER_nondet_int() [L214] COND TRUE \read(tmp_ndt_1) [L216] m_st = 1 [L217] CALL master() [L41] COND TRUE m_pc == 0 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L52] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L55] E_1 = 1 [L56] CALL immediate_notify() [L322] CALL activate_threads() VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L293] int tmp ; [L294] int tmp___0 ; [L298] CALL, EXPR is_master_triggered() [L112] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L115] COND FALSE !(m_pc == 1) VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L125] __retres1 = 0 VAL [\old(m_st)=1, \old(t1_st)=2, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L127] return (__retres1); VAL [\old(m_st)=1, \old(t1_st)=2, \result=0, __retres1=0, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L298] RET, EXPR is_master_triggered() [L298] tmp = is_master_triggered() [L300] COND FALSE !(\read(tmp)) VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2, tmp=0] [L306] CALL, EXPR is_transmit1_triggered() [L131] int __retres1 ; VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L134] COND TRUE t1_pc == 1 VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L135] COND TRUE E_1 == 1 [L136] __retres1 = 1 VAL [\old(m_st)=1, \old(t1_st)=2, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L146] return (__retres1); VAL [\old(m_st)=1, \old(t1_st)=2, \result=1, __retres1=1, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=2] [L306] RET, EXPR is_transmit1_triggered() [L306] tmp___0 = is_transmit1_triggered() [L308] COND TRUE \read(tmp___0) [L309] t1_st = 0 VAL [\old(m_st)=1, \old(t1_st)=2, E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0, tmp=0, tmp___0=1] [L322] RET activate_threads() VAL [E_1=1, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L56] RET immediate_notify() [L57] E_1 = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L60] COND TRUE 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=0, m_st=1, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L62] m_pc = 1 [L63] m_st = 2 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=0] [L217] RET master() [L225] COND TRUE t1_st == 0 [L226] int tmp_ndt_2; [L227] tmp_ndt_2 = __VERIFIER_nondet_int() [L228] COND TRUE \read(tmp_ndt_2) [L230] t1_st = 1 [L231] CALL transmit1() [L82] COND FALSE !(t1_pc == 0) VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L85] COND TRUE t1_pc == 1 VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] [L101] CALL error() [L21] reach_error() VAL [E_1=2, M_E=2, m_i=1, m_pc=1, m_st=2, T1_E=2, t1_i=1, t1_pc=1, t1_st=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.0s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2914 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2825 mSDsluCounter, 4230 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2766 mSDsCounter, 631 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3115 IncrementalHoareTripleChecker+Invalid, 3746 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 631 mSolverCounterUnsat, 1464 mSDtfsCounter, 3115 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 250 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2209occurred in iteration=10, InterpolantAutomatonStates: 110, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 646 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 559 ConstructedInterpolants, 0 QuantifiedInterpolants, 1169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-10-17 10:24:53,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7f015fe-adde-4e1b-a8d8-333797710f0a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE