./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R --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 022987cd4c8c671e376c5c3e5a08e2f1b98444b4d5d48bc73787bff74aa0de0f --- 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-38b53e6 [2022-11-25 18:23:57,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:23:57,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:23:57,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:23:57,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:23:57,118 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:23:57,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:23:57,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:23:57,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:23:57,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:23:57,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:23:57,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:23:57,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:23:57,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:23:57,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:23:57,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:23:57,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:23:57,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:23:57,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:23:57,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:23:57,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:23:57,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:23:57,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:23:57,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:23:57,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:23:57,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:23:57,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:23:57,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:23:57,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:23:57,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:23:57,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:23:57,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:23:57,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:23:57,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:23:57,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:23:57,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:23:57,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:23:57,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:23:57,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:23:57,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:23:57,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:23:57,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:23:57,174 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:23:57,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:23:57,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:23:57,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:23:57,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:23:57,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:23:57,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:23:57,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:23:57,197 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:23:57,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:23:57,198 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:23:57,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:23:57,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:23:57,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:23:57,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:23:57,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:23:57,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:23:57,200 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:23:57,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:23:57,200 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:23:57,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:23:57,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:23:57,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:23:57,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:23:57,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:23:57,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:23:57,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:23:57,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:23:57,203 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:23:57,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:23:57,203 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:23:57,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:23:57,204 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:23:57,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:23:57,204 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 022987cd4c8c671e376c5c3e5a08e2f1b98444b4d5d48bc73787bff74aa0de0f [2022-11-25 18:23:57,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:23:57,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:23:57,472 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:23:57,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:23:57,473 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:23:57,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/systemc/transmitter.07.cil.c [2022-11-25 18:24:00,512 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:24:00,773 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:24:00,773 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/sv-benchmarks/c/systemc/transmitter.07.cil.c [2022-11-25 18:24:00,784 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/data/c48f32a6a/32b5ff3716494d769119599698b60100/FLAGf294d8aee [2022-11-25 18:24:00,798 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/data/c48f32a6a/32b5ff3716494d769119599698b60100 [2022-11-25 18:24:00,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:24:00,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:24:00,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:00,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:24:00,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:24:00,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:00" (1/1) ... [2022-11-25 18:24:00,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5484737b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:00, skipping insertion in model container [2022-11-25 18:24:00,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:24:00" (1/1) ... [2022-11-25 18:24:00,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:24:00,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:24:01,021 WARN L237 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_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/sv-benchmarks/c/systemc/transmitter.07.cil.c[706,719] [2022-11-25 18:24:01,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:01,148 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:24:01,160 WARN L237 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_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/sv-benchmarks/c/systemc/transmitter.07.cil.c[706,719] [2022-11-25 18:24:01,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:24:01,228 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:24:01,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01 WrapperNode [2022-11-25 18:24:01,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:24:01,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:01,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:24:01,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:24:01,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,281 INFO L138 Inliner]: procedures = 42, calls = 51, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 549 [2022-11-25 18:24:01,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:24:01,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:24:01,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:24:01,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:24:01,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,322 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:24:01,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:24:01,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:24:01,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:24:01,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (1/1) ... [2022-11-25 18:24:01,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:24:01,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:24:01,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:24:01,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f6e0718-bb5d-4b38-a5fb-cea662c32bfd/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:24:01,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:24:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-25 18:24:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-25 18:24:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-25 18:24:01,423 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-25 18:24:01,423 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-25 18:24:01,424 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-25 18:24:01,424 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-25 18:24:01,424 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-25 18:24:01,424 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-25 18:24:01,424 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-25 18:24:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:24:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-25 18:24:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-25 18:24:01,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:24:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:24:01,547 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:24:01,550 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:24:02,376 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:24:02,385 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:24:02,386 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-25 18:24:02,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:02 BoogieIcfgContainer [2022-11-25 18:24:02,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:24:02,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:24:02,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:24:02,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:24:02,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:24:00" (1/3) ... [2022-11-25 18:24:02,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6182e816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:02, skipping insertion in model container [2022-11-25 18:24:02,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:24:01" (2/3) ... [2022-11-25 18:24:02,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6182e816 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:24:02, skipping insertion in model container [2022-11-25 18:24:02,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:24:02" (3/3) ... [2022-11-25 18:24:02,397 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.07.cil.c [2022-11-25 18:24:02,436 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:24:02,436 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:24:02,498 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:24:02,504 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;@1b3f50de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:24:02,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:24:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 253 states, 225 states have (on average 1.64) internal successors, (369), 227 states have internal predecessors, (369), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 18:24:02,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:02,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:02,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:02,528 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:02,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:02,534 INFO L85 PathProgramCache]: Analyzing trace with hash 208630803, now seen corresponding path program 1 times [2022-11-25 18:24:02,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:02,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126496670] [2022-11-25 18:24:02,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:02,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:03,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:03,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:03,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:03,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126496670] [2022-11-25 18:24:03,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126496670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:03,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:03,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 18:24:03,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675107399] [2022-11-25 18:24:03,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:03,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 18:24:03,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:03,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 18:24:03,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 18:24:03,195 INFO L87 Difference]: Start difference. First operand has 253 states, 225 states have (on average 1.64) internal successors, (369), 227 states have internal predecessors, (369), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 18:24:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:04,492 INFO L93 Difference]: Finished difference Result 580 states and 946 transitions. [2022-11-25 18:24:04,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 18:24:04,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 127 [2022-11-25 18:24:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:04,507 INFO L225 Difference]: With dead ends: 580 [2022-11-25 18:24:04,507 INFO L226 Difference]: Without dead ends: 333 [2022-11-25 18:24:04,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 18:24:04,516 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 645 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:04,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 496 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 18:24:04,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2022-11-25 18:24:04,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 248. [2022-11-25 18:24:04,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 221 states have (on average 1.5384615384615385) internal successors, (340), 222 states have internal predecessors, (340), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 18:24:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 380 transitions. [2022-11-25 18:24:04,621 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 380 transitions. Word has length 127 [2022-11-25 18:24:04,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:04,622 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 380 transitions. [2022-11-25 18:24:04,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 18:24:04,622 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 380 transitions. [2022-11-25 18:24:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:04,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:04,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:04,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 18:24:04,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 541273941, now seen corresponding path program 1 times [2022-11-25 18:24:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:04,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706369851] [2022-11-25 18:24:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:04,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:04,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:04,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:04,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:04,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:04,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:04,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706369851] [2022-11-25 18:24:04,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706369851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:04,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:04,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 18:24:04,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81154209] [2022-11-25 18:24:04,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:04,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 18:24:04,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:04,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 18:24:04,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 18:24:04,925 INFO L87 Difference]: Start difference. First operand 248 states and 380 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 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) [2022-11-25 18:24:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:07,083 INFO L93 Difference]: Finished difference Result 891 states and 1407 transitions. [2022-11-25 18:24:07,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 18:24:07,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:07,089 INFO L225 Difference]: With dead ends: 891 [2022-11-25 18:24:07,089 INFO L226 Difference]: Without dead ends: 658 [2022-11-25 18:24:07,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:24:07,092 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 966 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 1445 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:07,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 852 Invalid, 1530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1445 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 18:24:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-11-25 18:24:07,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 488. [2022-11-25 18:24:07,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 439 states have (on average 1.5489749430523918) internal successors, (680), 441 states have internal predecessors, (680), 35 states have call successors, (35), 12 states have call predecessors, (35), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2022-11-25 18:24:07,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 753 transitions. [2022-11-25 18:24:07,209 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 753 transitions. Word has length 127 [2022-11-25 18:24:07,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:07,210 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 753 transitions. [2022-11-25 18:24:07,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 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) [2022-11-25 18:24:07,211 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 753 transitions. [2022-11-25 18:24:07,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:07,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:07,218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:07,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 18:24:07,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:07,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1967689878, now seen corresponding path program 1 times [2022-11-25 18:24:07,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:07,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878652961] [2022-11-25 18:24:07,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:07,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:07,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:07,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:07,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:07,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:07,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:07,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:07,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878652961] [2022-11-25 18:24:07,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878652961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:07,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:07,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:07,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319892470] [2022-11-25 18:24:07,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:07,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:07,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:07,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:07,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:07,584 INFO L87 Difference]: Start difference. First operand 488 states and 753 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:10,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:10,813 INFO L93 Difference]: Finished difference Result 1575 states and 2466 transitions. [2022-11-25 18:24:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:24:10,813 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:10,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:10,820 INFO L225 Difference]: With dead ends: 1575 [2022-11-25 18:24:10,820 INFO L226 Difference]: Without dead ends: 1102 [2022-11-25 18:24:10,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:24:10,824 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1059 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:10,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 1597 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 18:24:10,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2022-11-25 18:24:10,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 713. [2022-11-25 18:24:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 642 states have (on average 1.5420560747663552) internal successors, (990), 645 states have internal predecessors, (990), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2022-11-25 18:24:10,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1095 transitions. [2022-11-25 18:24:10,902 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1095 transitions. Word has length 127 [2022-11-25 18:24:10,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:10,903 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 1095 transitions. [2022-11-25 18:24:10,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:10,903 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1095 transitions. [2022-11-25 18:24:10,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:10,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:10,906 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:10,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 18:24:10,906 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:10,907 INFO L85 PathProgramCache]: Analyzing trace with hash -5475500, now seen corresponding path program 1 times [2022-11-25 18:24:10,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:10,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604436809] [2022-11-25 18:24:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:10,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:11,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:11,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:11,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:11,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:11,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:11,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:11,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604436809] [2022-11-25 18:24:11,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604436809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:11,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:11,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:11,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394345867] [2022-11-25 18:24:11,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:11,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:11,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:11,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:11,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:11,182 INFO L87 Difference]: Start difference. First operand 713 states and 1095 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:14,398 INFO L93 Difference]: Finished difference Result 2422 states and 3782 transitions. [2022-11-25 18:24:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:24:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:14,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:14,413 INFO L225 Difference]: With dead ends: 2422 [2022-11-25 18:24:14,413 INFO L226 Difference]: Without dead ends: 1724 [2022-11-25 18:24:14,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:24:14,426 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 1054 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2764 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 2820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:14,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 1595 Invalid, 2820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2764 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 18:24:14,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2022-11-25 18:24:14,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1166. [2022-11-25 18:24:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1166 states, 1051 states have (on average 1.5366317792578497) internal successors, (1615), 1056 states have internal predecessors, (1615), 80 states have call successors, (80), 30 states have call predecessors, (80), 34 states have return successors, (93), 83 states have call predecessors, (93), 80 states have call successors, (93) [2022-11-25 18:24:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1166 states to 1166 states and 1788 transitions. [2022-11-25 18:24:14,621 INFO L78 Accepts]: Start accepts. Automaton has 1166 states and 1788 transitions. Word has length 127 [2022-11-25 18:24:14,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:14,623 INFO L495 AbstractCegarLoop]: Abstraction has 1166 states and 1788 transitions. [2022-11-25 18:24:14,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:14,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1166 states and 1788 transitions. [2022-11-25 18:24:14,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:14,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:14,627 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:14,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 18:24:14,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:14,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:14,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2147335978, now seen corresponding path program 1 times [2022-11-25 18:24:14,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:14,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767790230] [2022-11-25 18:24:14,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:14,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:14,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:14,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:14,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:14,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:14,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:14,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:14,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:14,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767790230] [2022-11-25 18:24:14,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767790230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:14,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:14,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:14,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272545984] [2022-11-25 18:24:14,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:14,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:14,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:14,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:14,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:14,860 INFO L87 Difference]: Start difference. First operand 1166 states and 1788 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:18,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:18,169 INFO L93 Difference]: Finished difference Result 4063 states and 6323 transitions. [2022-11-25 18:24:18,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:24:18,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:18,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:18,183 INFO L225 Difference]: With dead ends: 4063 [2022-11-25 18:24:18,183 INFO L226 Difference]: Without dead ends: 2912 [2022-11-25 18:24:18,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:24:18,188 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 1053 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2751 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:18,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 1595 Invalid, 2807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2751 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 18:24:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2912 states. [2022-11-25 18:24:18,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2912 to 2075. [2022-11-25 18:24:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1872 states have (on average 1.5325854700854702) internal successors, (2869), 1881 states have internal predecessors, (2869), 140 states have call successors, (140), 54 states have call predecessors, (140), 62 states have return successors, (175), 147 states have call predecessors, (175), 140 states have call successors, (175) [2022-11-25 18:24:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 3184 transitions. [2022-11-25 18:24:18,432 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 3184 transitions. Word has length 127 [2022-11-25 18:24:18,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:18,432 INFO L495 AbstractCegarLoop]: Abstraction has 2075 states and 3184 transitions. [2022-11-25 18:24:18,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:18,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 3184 transitions. [2022-11-25 18:24:18,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:18,436 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:18,436 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:18,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 18:24:18,437 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:18,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1524349716, now seen corresponding path program 1 times [2022-11-25 18:24:18,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:18,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084394837] [2022-11-25 18:24:18,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:18,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:18,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:18,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:18,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:18,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:18,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:18,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:18,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:18,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:18,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084394837] [2022-11-25 18:24:18,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084394837] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:18,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:18,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:18,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804648798] [2022-11-25 18:24:18,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:18,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:18,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:18,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:18,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:18,626 INFO L87 Difference]: Start difference. First operand 2075 states and 3184 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:22,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:22,080 INFO L93 Difference]: Finished difference Result 7346 states and 11425 transitions. [2022-11-25 18:24:22,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:24:22,082 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:22,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:22,109 INFO L225 Difference]: With dead ends: 7346 [2022-11-25 18:24:22,110 INFO L226 Difference]: Without dead ends: 5286 [2022-11-25 18:24:22,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:24:22,120 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 1052 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2738 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 2794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:22,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1595 Invalid, 2794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2738 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 18:24:22,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5286 states. [2022-11-25 18:24:22,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5286 to 3900. [2022-11-25 18:24:22,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3900 states, 3521 states have (on average 1.5299630786708323) internal successors, (5387), 3538 states have internal predecessors, (5387), 260 states have call successors, (260), 102 states have call predecessors, (260), 118 states have return successors, (357), 275 states have call predecessors, (357), 260 states have call successors, (357) [2022-11-25 18:24:22,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 6004 transitions. [2022-11-25 18:24:22,555 INFO L78 Accepts]: Start accepts. Automaton has 3900 states and 6004 transitions. Word has length 127 [2022-11-25 18:24:22,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:22,556 INFO L495 AbstractCegarLoop]: Abstraction has 3900 states and 6004 transitions. [2022-11-25 18:24:22,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:22,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3900 states and 6004 transitions. [2022-11-25 18:24:22,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:22,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:22,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:22,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 18:24:22,563 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:22,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1642791190, now seen corresponding path program 1 times [2022-11-25 18:24:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:22,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061964361] [2022-11-25 18:24:22,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:22,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:22,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:22,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:22,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:22,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:22,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:22,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:22,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061964361] [2022-11-25 18:24:22,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061964361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:22,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:22,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:22,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762080290] [2022-11-25 18:24:22,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:22,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:22,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:22,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:22,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:22,835 INFO L87 Difference]: Start difference. First operand 3900 states and 6004 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:26,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:26,693 INFO L93 Difference]: Finished difference Result 13913 states and 21691 transitions. [2022-11-25 18:24:26,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:24:26,699 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:26,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:26,750 INFO L225 Difference]: With dead ends: 13913 [2022-11-25 18:24:26,751 INFO L226 Difference]: Without dead ends: 10028 [2022-11-25 18:24:26,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:24:26,766 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 1051 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 2781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:26,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 1595 Invalid, 2781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2725 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 18:24:26,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10028 states. [2022-11-25 18:24:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10028 to 7565. [2022-11-25 18:24:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7565 states, 6834 states have (on average 1.5283874743927421) internal successors, (10445), 6867 states have internal predecessors, (10445), 500 states have call successors, (500), 198 states have call predecessors, (500), 230 states have return successors, (775), 531 states have call predecessors, (775), 500 states have call successors, (775) [2022-11-25 18:24:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7565 states to 7565 states and 11720 transitions. [2022-11-25 18:24:27,683 INFO L78 Accepts]: Start accepts. Automaton has 7565 states and 11720 transitions. Word has length 127 [2022-11-25 18:24:27,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:27,684 INFO L495 AbstractCegarLoop]: Abstraction has 7565 states and 11720 transitions. [2022-11-25 18:24:27,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:27,685 INFO L276 IsEmpty]: Start isEmpty. Operand 7565 states and 11720 transitions. [2022-11-25 18:24:27,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:27,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:27,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:27,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 18:24:27,696 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:27,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:27,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1262882092, now seen corresponding path program 1 times [2022-11-25 18:24:27,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:27,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659156582] [2022-11-25 18:24:27,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:27,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:27,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:27,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:27,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:27,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659156582] [2022-11-25 18:24:27,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659156582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:27,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:27,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:27,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638836068] [2022-11-25 18:24:27,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:27,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:27,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:27,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:27,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:27,931 INFO L87 Difference]: Start difference. First operand 7565 states and 11720 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:32,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:32,384 INFO L93 Difference]: Finished difference Result 27048 states and 42417 transitions. [2022-11-25 18:24:32,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 18:24:32,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:32,488 INFO L225 Difference]: With dead ends: 27048 [2022-11-25 18:24:32,488 INFO L226 Difference]: Without dead ends: 19498 [2022-11-25 18:24:32,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-25 18:24:32,575 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 1105 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 2490 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:32,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1042 Invalid, 2576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2490 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 18:24:32,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19498 states. [2022-11-25 18:24:34,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19498 to 14926. [2022-11-25 18:24:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14926 states, 13491 states have (on average 1.5274627529464087) internal successors, (20607), 13556 states have internal predecessors, (20607), 980 states have call successors, (980), 390 states have call predecessors, (980), 454 states have return successors, (1773), 1043 states have call predecessors, (1773), 980 states have call successors, (1773) [2022-11-25 18:24:34,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14926 states to 14926 states and 23360 transitions. [2022-11-25 18:24:34,450 INFO L78 Accepts]: Start accepts. Automaton has 14926 states and 23360 transitions. Word has length 127 [2022-11-25 18:24:34,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:34,451 INFO L495 AbstractCegarLoop]: Abstraction has 14926 states and 23360 transitions. [2022-11-25 18:24:34,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:34,451 INFO L276 IsEmpty]: Start isEmpty. Operand 14926 states and 23360 transitions. [2022-11-25 18:24:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:34,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:34,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:34,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 18:24:34,477 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:34,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash 998691158, now seen corresponding path program 1 times [2022-11-25 18:24:34,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:34,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220023855] [2022-11-25 18:24:34,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:34,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:34,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:34,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:34,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:34,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:34,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:34,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:34,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:34,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220023855] [2022-11-25 18:24:34,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220023855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:34,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:34,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:34,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722976053] [2022-11-25 18:24:34,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:34,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:34,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:34,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:34,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:34,686 INFO L87 Difference]: Start difference. First operand 14926 states and 23360 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:43,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:43,199 INFO L93 Difference]: Finished difference Result 59463 states and 93689 transitions. [2022-11-25 18:24:43,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:24:43,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:43,385 INFO L225 Difference]: With dead ends: 59463 [2022-11-25 18:24:43,385 INFO L226 Difference]: Without dead ends: 44552 [2022-11-25 18:24:43,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-11-25 18:24:43,444 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 1118 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 2772 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:43,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 1585 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2772 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 18:24:43,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44552 states. [2022-11-25 18:24:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44552 to 29455. [2022-11-25 18:24:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29455 states, 26676 states have (on average 1.530701754385965) internal successors, (40833), 26805 states have internal predecessors, (40833), 1876 states have call successors, (1876), 774 states have call predecessors, (1876), 902 states have return successors, (4191), 2003 states have call predecessors, (4191), 1876 states have call successors, (4191) [2022-11-25 18:24:46,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29455 states to 29455 states and 46900 transitions. [2022-11-25 18:24:46,609 INFO L78 Accepts]: Start accepts. Automaton has 29455 states and 46900 transitions. Word has length 127 [2022-11-25 18:24:46,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:46,609 INFO L495 AbstractCegarLoop]: Abstraction has 29455 states and 46900 transitions. [2022-11-25 18:24:46,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:46,610 INFO L276 IsEmpty]: Start isEmpty. Operand 29455 states and 46900 transitions. [2022-11-25 18:24:46,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:46,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:46,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:46,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 18:24:46,669 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:46,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:46,670 INFO L85 PathProgramCache]: Analyzing trace with hash -868017516, now seen corresponding path program 1 times [2022-11-25 18:24:46,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:46,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657047690] [2022-11-25 18:24:46,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:46,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:46,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:46,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:46,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:46,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:46,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:46,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:46,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657047690] [2022-11-25 18:24:46,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657047690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:46,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:46,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:46,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897536621] [2022-11-25 18:24:46,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:46,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:46,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:46,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:46,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:46,867 INFO L87 Difference]: Start difference. First operand 29455 states and 46900 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:52,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:24:52,861 INFO L93 Difference]: Finished difference Result 67709 states and 109915 transitions. [2022-11-25 18:24:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 18:24:52,862 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:24:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 18:24:53,022 INFO L225 Difference]: With dead ends: 67709 [2022-11-25 18:24:53,022 INFO L226 Difference]: Without dead ends: 38269 [2022-11-25 18:24:53,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-25 18:24:53,112 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 715 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 18:24:53,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 795 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 18:24:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38269 states. [2022-11-25 18:24:56,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38269 to 29455. [2022-11-25 18:24:56,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29455 states, 26676 states have (on average 1.5258659469185785) internal successors, (40704), 26805 states have internal predecessors, (40704), 1876 states have call successors, (1876), 774 states have call predecessors, (1876), 902 states have return successors, (4191), 2003 states have call predecessors, (4191), 1876 states have call successors, (4191) [2022-11-25 18:24:56,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29455 states to 29455 states and 46771 transitions. [2022-11-25 18:24:56,479 INFO L78 Accepts]: Start accepts. Automaton has 29455 states and 46771 transitions. Word has length 127 [2022-11-25 18:24:56,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 18:24:56,479 INFO L495 AbstractCegarLoop]: Abstraction has 29455 states and 46771 transitions. [2022-11-25 18:24:56,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:24:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 29455 states and 46771 transitions. [2022-11-25 18:24:56,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-11-25 18:24:56,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:24:56,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:24:56,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 18:24:56,522 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:24:56,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:24:56,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1029479250, now seen corresponding path program 1 times [2022-11-25 18:24:56,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:24:56,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335203758] [2022-11-25 18:24:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:24:56,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 18:24:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:56,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 18:24:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 18:24:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 18:24:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:56,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-25 18:24:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-25 18:24:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 18:24:56,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 18:24:56,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 18:24:56,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335203758] [2022-11-25 18:24:56,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335203758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 18:24:56,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 18:24:56,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 18:24:56,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199852222] [2022-11-25 18:24:56,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 18:24:56,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 18:24:56,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 18:24:56,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 18:24:56,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 18:24:56,725 INFO L87 Difference]: Start difference. First operand 29455 states and 46771 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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) [2022-11-25 18:25:10,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 18:25:10,017 INFO L93 Difference]: Finished difference Result 111746 states and 178803 transitions. [2022-11-25 18:25:10,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 18:25:10,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 5 states have internal predecessors, (117), 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 127 [2022-11-25 18:25:10,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted.