./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/forester-heap/sll-token-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/forester-heap/sll-token-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a --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 3438cae56d160b7d84eadaf1a799e28d3e56fe8aa8ad4206f8bf5c7c0818717b --- 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-b5237d8 [2022-11-21 17:08:05,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:08:05,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:08:05,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:08:05,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:08:05,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:08:05,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:08:05,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:08:05,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:08:05,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:08:05,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:08:05,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:08:05,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:08:05,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:08:05,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:08:05,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:08:05,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:08:05,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:08:05,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:08:05,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:08:05,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:08:05,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:08:05,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:08:05,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:08:05,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:08:05,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:08:05,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:08:05,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:08:05,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:08:05,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:08:05,248 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:08:05,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:08:05,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:08:05,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:08:05,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:08:05,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:08:05,253 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:08:05,253 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:08:05,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:08:05,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:08:05,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:08:05,262 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:08:05,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:08:05,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:08:05,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:08:05,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:08:05,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:08:05,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:08:05,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:08:05,311 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:08:05,311 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:08:05,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:08:05,312 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:08:05,313 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:08:05,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:08:05,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:08:05,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:08:05,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:08:05,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:08:05,314 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:08:05,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:08:05,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:08:05,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:08:05,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:08:05,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:08:05,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:08:05,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:08:05,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:08:05,316 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:08:05,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:08:05,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:08:05,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:08:05,317 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:08:05,317 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:08:05,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:08:05,318 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3438cae56d160b7d84eadaf1a799e28d3e56fe8aa8ad4206f8bf5c7c0818717b [2022-11-21 17:08:05,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:08:05,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:08:05,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:08:05,625 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:08:05,626 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:08:05,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/forester-heap/sll-token-2.i [2022-11-21 17:08:08,676 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:08:08,937 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:08:08,938 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i [2022-11-21 17:08:08,948 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/data/d54fdfe63/370cd9852d684961825113de570f9e26/FLAGf19474dca [2022-11-21 17:08:08,973 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/data/d54fdfe63/370cd9852d684961825113de570f9e26 [2022-11-21 17:08:08,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:08:08,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:08:08,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:08:08,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:08:08,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:08:08,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:08:08" (1/1) ... [2022-11-21 17:08:08,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256bb2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:08, skipping insertion in model container [2022-11-21 17:08:08,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:08:08" (1/1) ... [2022-11-21 17:08:08,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:08:09,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:08:09,293 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22162,22175] [2022-11-21 17:08:09,300 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22311,22324] [2022-11-21 17:08:09,302 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22402,22415] [2022-11-21 17:08:09,303 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22484,22497] [2022-11-21 17:08:09,304 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22562,22575] [2022-11-21 17:08:09,306 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22708,22721] [2022-11-21 17:08:09,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:08:09,317 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:08:09,351 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22162,22175] [2022-11-21 17:08:09,353 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22311,22324] [2022-11-21 17:08:09,354 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22402,22415] [2022-11-21 17:08:09,355 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22484,22497] [2022-11-21 17:08:09,356 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22562,22575] [2022-11-21 17:08:09,358 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_55f998d7-8236-4212-adb7-afe2bd1a624f/sv-benchmarks/c/forester-heap/sll-token-2.i[22708,22721] [2022-11-21 17:08:09,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:08:09,383 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:08:09,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09 WrapperNode [2022-11-21 17:08:09,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:08:09,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:08:09,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:08:09,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:08:09,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,426 INFO L138 Inliner]: procedures = 119, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 123 [2022-11-21 17:08:09,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:08:09,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:08:09,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:08:09,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:08:09,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:08:09,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:08:09,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:08:09,459 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:08:09,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (1/1) ... [2022-11-21 17:08:09,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:08:09,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:09,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:08:09,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:08:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:08:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:08:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:08:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:08:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 17:08:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 17:08:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:08:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:08:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:08:09,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:08:09,670 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:08:09,688 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:08:09,933 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:08:09,949 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:08:09,950 INFO L300 CfgBuilder]: Removed 15 assume(true) statements. [2022-11-21 17:08:09,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:09 BoogieIcfgContainer [2022-11-21 17:08:09,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:08:09,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:08:09,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:08:09,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:08:09,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:08:08" (1/3) ... [2022-11-21 17:08:09,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6541fd29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:08:09, skipping insertion in model container [2022-11-21 17:08:09,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:08:09" (2/3) ... [2022-11-21 17:08:09,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6541fd29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:08:09, skipping insertion in model container [2022-11-21 17:08:09,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:08:09" (3/3) ... [2022-11-21 17:08:09,962 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-token-2.i [2022-11-21 17:08:09,982 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:08:09,983 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-21 17:08:10,046 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:08:10,052 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;@35e12036, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:08:10,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-21 17:08:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 37 states have (on average 1.8108108108108107) internal successors, (67), 43 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 17:08:10,063 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:10,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 17:08:10,064 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:10,070 INFO L85 PathProgramCache]: Analyzing trace with hash 890337990, now seen corresponding path program 1 times [2022-11-21 17:08:10,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:10,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24874376] [2022-11-21 17:08:10,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:10,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:10,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:10,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24874376] [2022-11-21 17:08:10,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24874376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:10,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:10,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:08:10,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104765351] [2022-11-21 17:08:10,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:10,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:08:10,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:10,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:08:10,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:08:10,392 INFO L87 Difference]: Start difference. First operand has 44 states, 37 states have (on average 1.8108108108108107) internal successors, (67), 43 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:10,425 INFO L93 Difference]: Finished difference Result 86 states and 132 transitions. [2022-11-21 17:08:10,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:08:10,428 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-21 17:08:10,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:10,438 INFO L225 Difference]: With dead ends: 86 [2022-11-21 17:08:10,438 INFO L226 Difference]: Without dead ends: 39 [2022-11-21 17:08:10,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:08:10,471 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:10,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:08:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-21 17:08:10,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-21 17:08:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 38 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2022-11-21 17:08:10,528 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 6 [2022-11-21 17:08:10,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:10,528 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2022-11-21 17:08:10,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:10,529 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2022-11-21 17:08:10,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 17:08:10,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:10,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 17:08:10,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:08:10,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:10,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:10,532 INFO L85 PathProgramCache]: Analyzing trace with hash 889571369, now seen corresponding path program 1 times [2022-11-21 17:08:10,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:10,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878790650] [2022-11-21 17:08:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:10,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:10,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:10,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878790650] [2022-11-21 17:08:10,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878790650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:10,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:10,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:08:10,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452421853] [2022-11-21 17:08:10,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:10,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:08:10,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:10,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:08:10,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:10,716 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:10,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:10,800 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-11-21 17:08:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:08:10,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-21 17:08:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:10,802 INFO L225 Difference]: With dead ends: 39 [2022-11-21 17:08:10,803 INFO L226 Difference]: Without dead ends: 37 [2022-11-21 17:08:10,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:08:10,804 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:10,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 56 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:10,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-21 17:08:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-11-21 17:08:10,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.21875) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-21 17:08:10,811 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2022-11-21 17:08:10,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:10,811 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-21 17:08:10,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-21 17:08:10,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 17:08:10,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:10,813 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:10,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:08:10,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:10,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:10,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1806865149, now seen corresponding path program 1 times [2022-11-21 17:08:10,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:10,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275936149] [2022-11-21 17:08:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:10,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:10,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:10,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:10,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:10,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275936149] [2022-11-21 17:08:10,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275936149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:10,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:10,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:08:10,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229931108] [2022-11-21 17:08:10,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:10,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:08:10,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:08:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:08:10,992 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:11,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:11,066 INFO L93 Difference]: Finished difference Result 63 states and 66 transitions. [2022-11-21 17:08:11,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 17:08:11,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-21 17:08:11,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:11,068 INFO L225 Difference]: With dead ends: 63 [2022-11-21 17:08:11,069 INFO L226 Difference]: Without dead ends: 61 [2022-11-21 17:08:11,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:08:11,071 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 76 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:11,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 48 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:11,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-21 17:08:11,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 35. [2022-11-21 17:08:11,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-11-21 17:08:11,087 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 7 [2022-11-21 17:08:11,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:11,088 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-11-21 17:08:11,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:11,089 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-11-21 17:08:11,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:08:11,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:11,091 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:11,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:08:11,091 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:11,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:11,095 INFO L85 PathProgramCache]: Analyzing trace with hash -913382283, now seen corresponding path program 1 times [2022-11-21 17:08:11,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:11,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874946622] [2022-11-21 17:08:11,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:11,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:11,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:11,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:11,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874946622] [2022-11-21 17:08:11,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874946622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:11,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:11,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:08:11,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992420468] [2022-11-21 17:08:11,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:11,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:08:11,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:11,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:08:11,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:08:11,256 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:11,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:11,351 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-11-21 17:08:11,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:08:11,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 17:08:11,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:11,353 INFO L225 Difference]: With dead ends: 35 [2022-11-21 17:08:11,354 INFO L226 Difference]: Without dead ends: 33 [2022-11-21 17:08:11,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:08:11,356 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 3 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:11,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 90 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-21 17:08:11,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-21 17:08:11,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:11,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-21 17:08:11,371 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 12 [2022-11-21 17:08:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:11,371 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-21 17:08:11,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-21 17:08:11,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:08:11,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:11,373 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:11,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:08:11,374 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:11,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:11,375 INFO L85 PathProgramCache]: Analyzing trace with hash -913344547, now seen corresponding path program 1 times [2022-11-21 17:08:11,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:11,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506375785] [2022-11-21 17:08:11,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:11,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:11,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:11,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:11,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506375785] [2022-11-21 17:08:11,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506375785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:11,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:11,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:08:11,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22031063] [2022-11-21 17:08:11,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:11,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:08:11,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:11,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:08:11,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:08:11,852 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:12,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:12,077 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2022-11-21 17:08:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:08:12,080 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 17:08:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:12,081 INFO L225 Difference]: With dead ends: 50 [2022-11-21 17:08:12,081 INFO L226 Difference]: Without dead ends: 48 [2022-11-21 17:08:12,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:08:12,082 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 44 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:12,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 93 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:12,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-21 17:08:12,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2022-11-21 17:08:12,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:12,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-11-21 17:08:12,095 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 12 [2022-11-21 17:08:12,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:12,096 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-11-21 17:08:12,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:12,096 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-11-21 17:08:12,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 17:08:12,097 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:12,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:12,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 17:08:12,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:12,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:12,099 INFO L85 PathProgramCache]: Analyzing trace with hash -313255267, now seen corresponding path program 1 times [2022-11-21 17:08:12,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:12,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874262028] [2022-11-21 17:08:12,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:12,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:12,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:12,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874262028] [2022-11-21 17:08:12,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874262028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:12,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:12,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 17:08:12,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245031628] [2022-11-21 17:08:12,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:12,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:08:12,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:12,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:08:12,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:08:12,530 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:12,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:12,683 INFO L93 Difference]: Finished difference Result 66 states and 71 transitions. [2022-11-21 17:08:12,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 17:08:12,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-21 17:08:12,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:12,685 INFO L225 Difference]: With dead ends: 66 [2022-11-21 17:08:12,685 INFO L226 Difference]: Without dead ends: 64 [2022-11-21 17:08:12,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:08:12,686 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 29 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:12,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 135 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:12,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-21 17:08:12,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 48. [2022-11-21 17:08:12,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 47 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:12,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2022-11-21 17:08:12,698 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 16 [2022-11-21 17:08:12,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:12,698 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2022-11-21 17:08:12,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2022-11-21 17:08:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 17:08:12,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:12,701 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:12,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 17:08:12,702 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash -648614522, now seen corresponding path program 1 times [2022-11-21 17:08:12,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:12,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103104508] [2022-11-21 17:08:12,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:13,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:13,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103104508] [2022-11-21 17:08:13,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103104508] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:13,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709883034] [2022-11-21 17:08:13,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:13,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:13,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:13,189 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:13,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:08:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:13,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-21 17:08:13,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:13,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 17:08:13,423 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-21 17:08:13,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:13,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-21 17:08:13,522 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-21 17:08:13,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-21 17:08:13,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-21 17:08:13,565 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-21 17:08:13,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-21 17:08:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:13,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:13,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-21 17:08:13,759 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-21 17:08:13,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-21 17:08:13,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-21 17:08:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:13,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:14,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709883034] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:14,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:08:14,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 11 [2022-11-21 17:08:14,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741529810] [2022-11-21 17:08:14,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:14,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:08:14,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:14,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:08:14,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-21 17:08:14,054 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:14,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:14,633 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2022-11-21 17:08:14,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:08:14,634 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-21 17:08:14,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:14,635 INFO L225 Difference]: With dead ends: 60 [2022-11-21 17:08:14,635 INFO L226 Difference]: Without dead ends: 58 [2022-11-21 17:08:14,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-21 17:08:14,636 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 25 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:14,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 132 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 0.5s Time] [2022-11-21 17:08:14,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-21 17:08:14,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2022-11-21 17:08:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 49 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 55 transitions. [2022-11-21 17:08:14,648 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 55 transitions. Word has length 16 [2022-11-21 17:08:14,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:14,648 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 55 transitions. [2022-11-21 17:08:14,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:14,649 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2022-11-21 17:08:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 17:08:14,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:14,649 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:14,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:14,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:14,857 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:14,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:14,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1909855756, now seen corresponding path program 1 times [2022-11-21 17:08:14,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:14,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880740273] [2022-11-21 17:08:14,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:14,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:15,073 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:15,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:15,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880740273] [2022-11-21 17:08:15,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880740273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:15,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:15,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 17:08:15,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191435610] [2022-11-21 17:08:15,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:15,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:08:15,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:15,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:08:15,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:08:15,075 INFO L87 Difference]: Start difference. First operand 50 states and 55 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:15,197 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2022-11-21 17:08:15,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:08:15,197 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-21 17:08:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:15,198 INFO L225 Difference]: With dead ends: 76 [2022-11-21 17:08:15,198 INFO L226 Difference]: Without dead ends: 50 [2022-11-21 17:08:15,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-21 17:08:15,199 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 14 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:15,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 135 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:15,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-21 17:08:15,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-11-21 17:08:15,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.148936170212766) internal successors, (54), 49 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2022-11-21 17:08:15,209 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 18 [2022-11-21 17:08:15,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:15,209 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2022-11-21 17:08:15,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:15,210 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2022-11-21 17:08:15,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 17:08:15,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:15,211 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:15,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 17:08:15,211 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:15,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:15,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1000772550, now seen corresponding path program 1 times [2022-11-21 17:08:15,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:15,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254960653] [2022-11-21 17:08:15,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:15,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:15,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:15,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:15,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254960653] [2022-11-21 17:08:15,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254960653] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:15,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262659420] [2022-11-21 17:08:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:15,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:15,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:15,574 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:15,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:08:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:15,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-21 17:08:15,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:15,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-21 17:08:15,718 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 17:08:15,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:15,772 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-11-21 17:08:15,794 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-21 17:08:15,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-11-21 17:08:15,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-21 17:08:15,828 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-21 17:08:15,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-21 17:08:15,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:15,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:15,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-11-21 17:08:15,952 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-11-21 17:08:15,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-11-21 17:08:15,994 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-21 17:08:16,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:16,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:16,148 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:16,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262659420] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:16,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:08:16,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 12 [2022-11-21 17:08:16,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509511558] [2022-11-21 17:08:16,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:16,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 17:08:16,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:16,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 17:08:16,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-21 17:08:16,150 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:16,552 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2022-11-21 17:08:16,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:08:16,553 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-21 17:08:16,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:16,553 INFO L225 Difference]: With dead ends: 68 [2022-11-21 17:08:16,553 INFO L226 Difference]: Without dead ends: 52 [2022-11-21 17:08:16,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2022-11-21 17:08:16,554 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 19 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:16,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 111 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-21 17:08:16,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-21 17:08:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2022-11-21 17:08:16,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 47 states have (on average 1.127659574468085) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-11-21 17:08:16,565 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 20 [2022-11-21 17:08:16,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:16,565 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-11-21 17:08:16,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,566 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-11-21 17:08:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 17:08:16,566 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:16,567 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] [2022-11-21 17:08:16,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:08:16,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-21 17:08:16,773 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:16,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:16,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1552465966, now seen corresponding path program 1 times [2022-11-21 17:08:16,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:16,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767295375] [2022-11-21 17:08:16,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:16,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:16,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:16,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:16,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767295375] [2022-11-21 17:08:16,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767295375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:08:16,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:08:16,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:08:16,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315706678] [2022-11-21 17:08:16,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:08:16,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:08:16,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:16,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:08:16,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:08:16,827 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:16,896 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2022-11-21 17:08:16,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:08:16,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-21 17:08:16,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:16,897 INFO L225 Difference]: With dead ends: 50 [2022-11-21 17:08:16,897 INFO L226 Difference]: Without dead ends: 31 [2022-11-21 17:08:16,898 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-21 17:08:16,898 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:16,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 91 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:08:16,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-21 17:08:16,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-21 17:08:16,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-11-21 17:08:16,914 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 22 [2022-11-21 17:08:16,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:16,915 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-11-21 17:08:16,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:16,915 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-11-21 17:08:16,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 17:08:16,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:16,916 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:16,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 17:08:16,916 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:16,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:16,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1970202869, now seen corresponding path program 1 times [2022-11-21 17:08:16,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:16,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859322838] [2022-11-21 17:08:16,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:16,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:17,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:17,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859322838] [2022-11-21 17:08:17,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859322838] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:17,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076233791] [2022-11-21 17:08:17,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:17,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:17,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:17,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:17,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:08:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:17,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-21 17:08:17,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:17,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 17:08:17,860 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-21 17:08:17,874 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-21 17:08:17,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-21 17:08:17,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-21 17:08:17,904 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-21 17:08:17,904 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-21 17:08:17,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-21 17:08:17,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-11-21 17:08:18,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:18,084 INFO L321 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2022-11-21 17:08:18,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 69 [2022-11-21 17:08:18,096 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 29 [2022-11-21 17:08:18,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:18,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2022-11-21 17:08:18,114 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-21 17:08:18,135 INFO L321 Elim1Store]: treesize reduction 27, result has 48.1 percent of original size [2022-11-21 17:08:18,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 44 [2022-11-21 17:08:18,160 INFO L321 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2022-11-21 17:08:18,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2022-11-21 17:08:18,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-21 17:08:18,364 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:08:18,370 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-21 17:08:18,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 26 [2022-11-21 17:08:18,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-21 17:08:18,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:18,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:18,470 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2022-11-21 17:08:18,482 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 57 [2022-11-21 17:08:18,496 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,496 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 99 [2022-11-21 17:08:18,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2022-11-21 17:08:18,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2022-11-21 17:08:18,787 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,788 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 98 [2022-11-21 17:08:18,799 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 118 [2022-11-21 17:08:18,814 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,815 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 238 treesize of output 189 [2022-11-21 17:08:18,835 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 280 treesize of output 279 [2022-11-21 17:08:18,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 263 treesize of output 259 [2022-11-21 17:08:18,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 259 treesize of output 251 [2022-11-21 17:08:18,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 251 treesize of output 247 [2022-11-21 17:08:18,885 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 247 treesize of output 244 [2022-11-21 17:08:18,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 231 [2022-11-21 17:08:18,913 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:18,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 231 treesize of output 220 [2022-11-21 17:08:20,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:20,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076233791] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:08:20,673 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:08:20,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 15 [2022-11-21 17:08:20,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528739048] [2022-11-21 17:08:20,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:08:20,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-21 17:08:20,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:08:20,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-21 17:08:20,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-21 17:08:20,675 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:20,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:08:20,969 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2022-11-21 17:08:20,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:08:20,970 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-21 17:08:20,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:08:20,970 INFO L225 Difference]: With dead ends: 66 [2022-11-21 17:08:20,970 INFO L226 Difference]: Without dead ends: 50 [2022-11-21 17:08:20,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2022-11-21 17:08:20,971 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:08:20,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 140 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:08:20,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-11-21 17:08:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2022-11-21 17:08:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.0909090909090908) internal successors, (48), 45 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 48 transitions. [2022-11-21 17:08:20,983 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 48 transitions. Word has length 22 [2022-11-21 17:08:20,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:08:20,984 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 48 transitions. [2022-11-21 17:08:20,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 15 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 17:08:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 48 transitions. [2022-11-21 17:08:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 17:08:20,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:08:20,985 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:08:20,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-21 17:08:21,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-21 17:08:21,192 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-11-21 17:08:21,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:08:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash -882557003, now seen corresponding path program 1 times [2022-11-21 17:08:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:08:21,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165289037] [2022-11-21 17:08:21,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:21,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:08:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:22,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:08:22,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165289037] [2022-11-21 17:08:22,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165289037] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:08:22,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596600929] [2022-11-21 17:08:22,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:08:22,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:08:22,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:08:22,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:08:22,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55f998d7-8236-4212-adb7-afe2bd1a624f/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:08:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:08:22,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 58 conjunts are in the unsatisfiable core [2022-11-21 17:08:22,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:08:22,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-11-21 17:08:22,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-21 17:08:22,306 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-21 17:08:22,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-21 17:08:22,313 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-21 17:08:22,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-11-21 17:08:22,341 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-21 17:08:22,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-11-21 17:08:22,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-21 17:08:22,377 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-21 17:08:22,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-11-21 17:08:22,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:22,541 INFO L321 Elim1Store]: treesize reduction 31, result has 31.1 percent of original size [2022-11-21 17:08:22,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 51 [2022-11-21 17:08:22,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:22,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:08:22,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 28 [2022-11-21 17:08:22,558 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-21 17:08:22,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-11-21 17:08:22,589 INFO L321 Elim1Store]: treesize reduction 8, result has 78.4 percent of original size [2022-11-21 17:08:22,589 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 38 [2022-11-21 17:08:22,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2022-11-21 17:08:22,953 INFO L321 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2022-11-21 17:08:22,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 47 [2022-11-21 17:08:22,968 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-21 17:08:22,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16 [2022-11-21 17:08:22,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-21 17:08:22,999 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:08:22,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:08:23,113 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:23,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 95 treesize of output 93 [2022-11-21 17:08:23,121 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:23,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 102 treesize of output 100 [2022-11-21 17:08:23,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 169 [2022-11-21 17:08:23,432 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:23,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 165 treesize of output 150 [2022-11-21 17:08:23,442 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:23,442 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 126 [2022-11-21 17:08:23,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:23,535 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 1870 treesize of output 1435 [2022-11-21 17:08:24,696 INFO L321 Elim1Store]: treesize reduction 294, result has 60.5 percent of original size [2022-11-21 17:08:24,697 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 7848 treesize of output 7589 [2022-11-21 17:08:25,320 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:25,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 6520 treesize of output 6334 [2022-11-21 17:08:25,918 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:25,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 6300 treesize of output 5984 [2022-11-21 17:08:26,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5922 treesize of output 5450 [2022-11-21 17:08:26,769 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:26,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 5468 treesize of output 4946 [2022-11-21 17:08:27,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5588 treesize of output 5492 [2022-11-21 17:08:27,389 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:27,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 5038 treesize of output 4948 [2022-11-21 17:08:27,759 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:27,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 5372 treesize of output 4950 [2022-11-21 17:08:28,099 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:08:28,100 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 4916 treesize of output 4884