./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/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_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/tcpy.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/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_353f3e58-fd17-480f-9947-d884f7dbdd80/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 a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 --- 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 17:11:11,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:11:11,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:11:11,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:11:11,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:11:11,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:11:11,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:11:11,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:11:11,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:11:11,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:11:11,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:11:11,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:11:11,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:11:11,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:11:11,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:11:11,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:11:11,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:11:11,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:11:11,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:11:11,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:11:11,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:11:11,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:11:11,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:11:11,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:11:11,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:11:11,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:11:11,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:11:11,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:11:11,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:11:11,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:11:11,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:11:11,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:11:11,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:11:11,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:11:11,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:11:11,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:11:11,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:11:11,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:11:11,500 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:11:11,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:11:11,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:11:11,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 17:11:11,524 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:11:11,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:11:11,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:11:11,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:11:11,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:11:11,526 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:11:11,527 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:11:11,527 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:11:11,527 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:11:11,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:11:11,528 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 17:11:11,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:11:11,528 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 17:11:11,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:11:11,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:11:11,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:11:11,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:11:11,530 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 17:11:11,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:11:11,530 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:11:11,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:11:11,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:11:11,531 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:11:11,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:11:11,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:11:11,532 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:11:11,532 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:11:11,532 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:11:11,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:11:11,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:11:11,533 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:11:11,533 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:11:11,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:11:11,534 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_353f3e58-fd17-480f-9947-d884f7dbdd80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a747677fdea16741fbb3fca3d9510254677728ef5906b9bf8e219064accd3a39 [2022-11-21 17:11:11,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:11:11,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:11:11,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:11:11,923 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:11:11,924 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:11:11,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/array-tiling/tcpy.c [2022-11-21 17:11:15,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:11:15,249 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:11:15,249 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/sv-benchmarks/c/array-tiling/tcpy.c [2022-11-21 17:11:15,257 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/data/34f6f79ff/106072a1452846f5a11cd15eb39a8d0a/FLAG0c457b9bd [2022-11-21 17:11:15,272 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/data/34f6f79ff/106072a1452846f5a11cd15eb39a8d0a [2022-11-21 17:11:15,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:11:15,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:11:15,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:11:15,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:11:15,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:11:15,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ceb9f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15, skipping insertion in model container [2022-11-21 17:11:15,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:11:15,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:11:15,488 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_353f3e58-fd17-480f-9947-d884f7dbdd80/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-21 17:11:15,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:11:15,527 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:11:15,540 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_353f3e58-fd17-480f-9947-d884f7dbdd80/sv-benchmarks/c/array-tiling/tcpy.c[395,408] [2022-11-21 17:11:15,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:11:15,568 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:11:15,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15 WrapperNode [2022-11-21 17:11:15,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:11:15,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:11:15,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:11:15,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:11:15,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,605 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 82 [2022-11-21 17:11:15,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:11:15,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:11:15,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:11:15,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:11:15,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,631 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:11:15,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:11:15,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:11:15,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:11:15,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (1/1) ... [2022-11-21 17:11:15,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:11:15,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:15,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:11:15,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:11:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 17:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 17:11:15,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:11:15,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:11:15,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 17:11:15,798 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:11:15,800 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:11:15,980 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:11:15,987 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:11:15,987 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 17:11:15,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:11:15 BoogieIcfgContainer [2022-11-21 17:11:15,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:11:15,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:11:15,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:11:16,027 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:11:16,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:11:15" (1/3) ... [2022-11-21 17:11:16,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c86f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:11:16, skipping insertion in model container [2022-11-21 17:11:16,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:11:15" (2/3) ... [2022-11-21 17:11:16,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45c86f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:11:16, skipping insertion in model container [2022-11-21 17:11:16,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:11:15" (3/3) ... [2022-11-21 17:11:16,030 INFO L112 eAbstractionObserver]: Analyzing ICFG tcpy.c [2022-11-21 17:11:16,067 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:11:16,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:11:16,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:11:16,188 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;@1e1ea2ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:11:16,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:11:16,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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 17:11:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:11:16,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:16,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:16,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:11:16,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:16,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1608152958, now seen corresponding path program 1 times [2022-11-21 17:11:16,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:16,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669748451] [2022-11-21 17:11:16,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:16,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:16,476 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 17:11:16,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:16,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669748451] [2022-11-21 17:11:16,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669748451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:16,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:16,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 17:11:16,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360112706] [2022-11-21 17:11:16,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:16,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 17:11:16,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:16,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 17:11:16,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 17:11:16,548 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 states have internal predecessors, (30), 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 6.0) internal successors, (12), 2 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 17:11:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:16,570 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2022-11-21 17:11:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 17:11:16,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 17:11:16,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:16,584 INFO L225 Difference]: With dead ends: 37 [2022-11-21 17:11:16,585 INFO L226 Difference]: Without dead ends: 17 [2022-11-21 17:11:16,587 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 17:11:16,592 INFO L413 NwaCegarLoop]: 25 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, 25 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 17:11:16,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:11:16,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-21 17:11:16,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-21 17:11:16,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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 17:11:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-21 17:11:16,628 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-11-21 17:11:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:16,629 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-21 17:11:16,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 17:11:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-21 17:11:16,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 17:11:16,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:16,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:16,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:11:16,632 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:11:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:16,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1873320706, now seen corresponding path program 1 times [2022-11-21 17:11:16,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:16,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777742690] [2022-11-21 17:11:16,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:16,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:16,903 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 17:11:16,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:16,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777742690] [2022-11-21 17:11:16,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777742690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:16,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:16,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 17:11:16,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319032404] [2022-11-21 17:11:16,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:16,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:11:16,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:16,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:11:16,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 17:11:16,908 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 17:11:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:16,986 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-21 17:11:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:11:16,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 17:11:16,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:16,988 INFO L225 Difference]: With dead ends: 31 [2022-11-21 17:11:16,988 INFO L226 Difference]: Without dead ends: 19 [2022-11-21 17:11:16,988 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 17:11:16,990 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 1 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:16,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 22 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:11:16,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-21 17:11:16,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-21 17:11:16,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 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 17:11:16,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-11-21 17:11:16,995 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-11-21 17:11:16,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:16,996 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-11-21 17:11:16,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 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 17:11:16,996 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-21 17:11:16,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 17:11:16,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:16,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:16,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 17:11:16,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:11:16,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:16,999 INFO L85 PathProgramCache]: Analyzing trace with hash -270521828, now seen corresponding path program 1 times [2022-11-21 17:11:16,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:16,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929263368] [2022-11-21 17:11:16,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:17,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:17,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:17,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929263368] [2022-11-21 17:11:17,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929263368] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:11:17,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775404369] [2022-11-21 17:11:17,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:17,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:17,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:17,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:11:17,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:11:17,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:17,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-21 17:11:17,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:11:17,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:17,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:11:17,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:17,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775404369] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:11:17,525 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:11:17,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 17:11:17,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380793052] [2022-11-21 17:11:17,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:11:17,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 17:11:17,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 17:11:17,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:11:17,536 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 17:11:17,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:17,634 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-21 17:11:17,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:11:17,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 14 [2022-11-21 17:11:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:17,636 INFO L225 Difference]: With dead ends: 33 [2022-11-21 17:11:17,636 INFO L226 Difference]: Without dead ends: 21 [2022-11-21 17:11:17,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2022-11-21 17:11:17,638 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:17,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 32 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:11:17,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-21 17:11:17,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2022-11-21 17:11:17,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 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 17:11:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-21 17:11:17,643 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 14 [2022-11-21 17:11:17,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:17,643 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-21 17:11:17,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 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 17:11:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-21 17:11:17,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 17:11:17,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:17,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:17,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:11:17,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:17,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:11:17,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:17,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1874059334, now seen corresponding path program 2 times [2022-11-21 17:11:17,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:17,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738272814] [2022-11-21 17:11:17,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:17,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:17,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:11:18,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:18,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738272814] [2022-11-21 17:11:18,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738272814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:11:18,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:11:18,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 17:11:18,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112834101] [2022-11-21 17:11:18,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:11:18,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 17:11:18,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:18,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 17:11:18,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:11:18,192 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 17:11:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:18,279 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2022-11-21 17:11:18,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:11:18,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 17:11:18,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:18,282 INFO L225 Difference]: With dead ends: 35 [2022-11-21 17:11:18,282 INFO L226 Difference]: Without dead ends: 28 [2022-11-21 17:11:18,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:11:18,286 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:18,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:11:18,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-21 17:11:18,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2022-11-21 17:11:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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 17:11:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-21 17:11:18,292 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16 [2022-11-21 17:11:18,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:18,292 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-21 17:11:18,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 17:11:18,292 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-21 17:11:18,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 17:11:18,293 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:18,293 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:18,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 17:11:18,294 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:11:18,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:18,308 INFO L85 PathProgramCache]: Analyzing trace with hash 265660728, now seen corresponding path program 1 times [2022-11-21 17:11:18,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:18,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277876652] [2022-11-21 17:11:18,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:18,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:18,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:11:18,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:18,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277876652] [2022-11-21 17:11:18,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277876652] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:11:18,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387890762] [2022-11-21 17:11:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:18,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:18,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:18,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:11:18,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:11:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:18,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 36 conjunts are in the unsatisfiable core [2022-11-21 17:11:18,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:11:18,956 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 10 treesize of output 8 [2022-11-21 17:11:19,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:19,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:19,247 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 23 treesize of output 27 [2022-11-21 17:11:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:11:19,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:11:19,413 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:11:19,413 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 752 treesize of output 718 [2022-11-21 17:11:19,438 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 486 treesize of output 414 [2022-11-21 17:11:24,824 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-11-21 17:11:24,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 538 [2022-11-21 17:11:24,913 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:24,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:24,939 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:24,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-21 17:11:24,962 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:24,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:24,982 INFO L321 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-11-21 17:11:24,983 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 414 treesize of output 378 [2022-11-21 17:11:25,069 INFO L321 Elim1Store]: treesize reduction 24, result has 22.6 percent of original size [2022-11-21 17:11:25,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 538 [2022-11-21 17:11:25,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:25,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:25,182 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:25,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:25,203 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:25,204 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-21 17:11:25,225 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:25,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:25,265 INFO L321 Elim1Store]: treesize reduction 10, result has 67.7 percent of original size [2022-11-21 17:11:25,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 342 treesize of output 290 [2022-11-21 17:11:25,377 INFO L321 Elim1Store]: treesize reduction 18, result has 41.9 percent of original size [2022-11-21 17:11:25,378 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 198 treesize of output 166 [2022-11-21 17:11:25,428 INFO L321 Elim1Store]: treesize reduction 20, result has 35.5 percent of original size [2022-11-21 17:11:25,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 541 [2022-11-21 17:11:25,527 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:25,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-21 17:11:25,549 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:25,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 587 treesize of output 1 [2022-11-21 17:11:25,574 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:25,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:25,599 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:25,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 587 treesize of output 1 [2022-11-21 17:11:25,633 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-21 17:11:25,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 443 treesize of output 418 [2022-11-21 17:11:25,698 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-21 17:11:25,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 323 treesize of output 302 [2022-11-21 17:11:25,790 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-21 17:11:25,790 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 443 treesize of output 418 [2022-11-21 17:11:25,879 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 270 treesize of output 262 [2022-11-21 17:11:25,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 270 treesize of output 262 [2022-11-21 17:11:25,962 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 121 treesize of output 117 [2022-11-21 17:11:25,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,004 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-21 17:11:26,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 323 treesize of output 302 [2022-11-21 17:11:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,225 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,261 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:11:26,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 1 [2022-11-21 17:11:26,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,277 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-21 17:11:26,278 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 58 [2022-11-21 17:11:26,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,307 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 1 [2022-11-21 17:11:26,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2022-11-21 17:11:26,325 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 1 [2022-11-21 17:11:26,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,445 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,452 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,459 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,562 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,577 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,583 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,627 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,697 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,715 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,821 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:26,822 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 611 treesize of output 1 [2022-11-21 17:11:26,834 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,841 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:26,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 462 treesize of output 1 [2022-11-21 17:11:26,860 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:26,861 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 462 treesize of output 1 [2022-11-21 17:11:26,882 INFO L321 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2022-11-21 17:11:26,883 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 611 treesize of output 1 [2022-11-21 17:11:26,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,915 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:26,915 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 342 treesize of output 1 [2022-11-21 17:11:26,923 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,946 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:26,960 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-21 17:11:26,974 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:26,981 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:26,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:27,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,018 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 611 treesize of output 1 [2022-11-21 17:11:27,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,040 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-21 17:11:27,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,060 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 347 treesize of output 1 [2022-11-21 17:11:27,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,078 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 1 [2022-11-21 17:11:27,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,096 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 318 treesize of output 1 [2022-11-21 17:11:27,109 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,120 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-21 17:11:27,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,143 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-21 17:11:27,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,162 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 318 treesize of output 1 [2022-11-21 17:11:27,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,183 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 198 treesize of output 1 [2022-11-21 17:11:27,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,206 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-21 17:11:27,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,225 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 347 treesize of output 1 [2022-11-21 17:11:27,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,244 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,245 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:27,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,264 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 611 treesize of output 1 [2022-11-21 17:11:27,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,284 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,284 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 467 treesize of output 1 [2022-11-21 17:11:27,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,302 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,302 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 347 treesize of output 1 [2022-11-21 17:11:27,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,325 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:11:27,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 491 treesize of output 1 [2022-11-21 17:11:27,383 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 210 treesize of output 204 [2022-11-21 17:11:27,403 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-21 17:11:27,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 101 [2022-11-21 17:11:27,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,493 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,499 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,669 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:11:27,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,700 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,797 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:11:27,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,818 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:11:27,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:11:27,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:11:27,885 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:11:27,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:11:27,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,943 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:27,948 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:27,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:28,136 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-21 17:11:28,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387890762] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:11:28,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:11:28,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 18 [2022-11-21 17:11:28,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097952469] [2022-11-21 17:11:28,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:11:28,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-21 17:11:28,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:28,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-21 17:11:28,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2022-11-21 17:11:28,145 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 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 17:11:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:11:28,425 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-11-21 17:11:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 17:11:28,426 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 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) Word has length 18 [2022-11-21 17:11:28,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:11:28,426 INFO L225 Difference]: With dead ends: 29 [2022-11-21 17:11:28,427 INFO L226 Difference]: Without dead ends: 27 [2022-11-21 17:11:28,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=204, Invalid=446, Unknown=0, NotChecked=0, Total=650 [2022-11-21 17:11:28,428 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 65 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:11:28,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 35 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:11:28,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-21 17:11:28,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2022-11-21 17:11:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 17:11:28,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-11-21 17:11:28,433 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 18 [2022-11-21 17:11:28,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:11:28,434 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-11-21 17:11:28,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 18 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 17:11:28,434 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-11-21 17:11:28,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 17:11:28,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:11:28,436 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:11:28,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:11:28,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:28,643 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:11:28,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:11:28,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1994055598, now seen corresponding path program 1 times [2022-11-21 17:11:28,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:11:28,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766477707] [2022-11-21 17:11:28,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:28,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:11:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:29,467 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:29,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:11:29,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766477707] [2022-11-21 17:11:29,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766477707] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:11:29,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68071381] [2022-11-21 17:11:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:11:29,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:11:29,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:11:29,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:11:29,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 17:11:29,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:11:29,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 46 conjunts are in the unsatisfiable core [2022-11-21 17:11:29,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:11:29,566 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 10 treesize of output 8 [2022-11-21 17:11:29,627 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-11-21 17:11:29,802 INFO L321 Elim1Store]: treesize reduction 26, result has 31.6 percent of original size [2022-11-21 17:11:29,802 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 28 treesize of output 32 [2022-11-21 17:11:30,091 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:30,098 INFO L321 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-11-21 17:11:30,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 23 [2022-11-21 17:11:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:11:30,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:11:32,243 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_103 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (store (let ((.cse1 (* (- 4) |c_ULTIMATE.start_main_~i~0#1|)) (.cse2 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ .cse1 (- 4) .cse2 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ .cse1 (- 4) .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |ULTIMATE.start_main_~acopy~0#1.offset|) v_ArrVal_103))) (= (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| .cse0) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4))))) is different from false [2022-11-21 17:11:34,256 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_103 Int) (|ULTIMATE.start_main_~acopy~0#1.offset| Int)) (let ((.cse0 (let ((.cse1 (* 4 c_~SIZE~0))) (store (select |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base|) (+ (- 4) .cse1 |ULTIMATE.start_main_~acopy~0#1.offset|) (select (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (- 4) .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)))))) (= (select .cse0 (+ |ULTIMATE.start_main_~acopy~0#1.offset| 4)) (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~acopy~0#1.base| (store .cse0 |ULTIMATE.start_main_~acopy~0#1.offset| v_ArrVal_103)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))))) is different from false [2022-11-21 17:11:39,232 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:11:39,233 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 1174 treesize of output 951 [2022-11-21 17:11:39,311 INFO L321 Elim1Store]: treesize reduction 39, result has 62.1 percent of original size [2022-11-21 17:11:39,312 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 4 case distinctions, treesize of input 1443 treesize of output 1337 [2022-11-21 17:11:39,342 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:11:39,342 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 1507 treesize of output 1399 [2022-11-21 17:11:42,083 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,086 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 13 treesize of output 9 [2022-11-21 17:11:42,093 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,096 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 25 treesize of output 17 [2022-11-21 17:11:42,100 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,102 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:42,107 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,109 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:42,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,115 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:42,126 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,129 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 11 treesize of output 7 [2022-11-21 17:11:42,132 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:42,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,157 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 55 treesize of output 47 [2022-11-21 17:11:42,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,168 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 40 treesize of output 32 [2022-11-21 17:11:42,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,188 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 40 treesize of output 32 [2022-11-21 17:11:42,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,232 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:42,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,250 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 26 treesize of output 22 [2022-11-21 17:11:42,256 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:42,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:11:42,268 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:42,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,291 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 40 treesize of output 32 [2022-11-21 17:11:42,300 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 20 treesize of output 16 [2022-11-21 17:11:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:11:42,314 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:11:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-21 17:11:48,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68071381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:11:48,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:11:48,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 14] total 33 [2022-11-21 17:11:48,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967921061] [2022-11-21 17:11:48,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:11:48,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-21 17:11:48,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:11:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-21 17:11:48,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=747, Unknown=5, NotChecked=118, Total=1056 [2022-11-21 17:11:48,892 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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 17:11:51,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 17:11:53,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 17:11:55,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 17:11:57,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2022-11-21 17:12:02,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:12:02,894 INFO L93 Difference]: Finished difference Result 82 states and 91 transitions. [2022-11-21 17:12:02,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-11-21 17:12:02,894 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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 17:12:02,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:12:02,895 INFO L225 Difference]: With dead ends: 82 [2022-11-21 17:12:02,895 INFO L226 Difference]: Without dead ends: 71 [2022-11-21 17:12:02,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=617, Invalid=2356, Unknown=5, NotChecked=214, Total=3192 [2022-11-21 17:12:02,897 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 157 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 40 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 103 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-21 17:12:02,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 121 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 291 Invalid, 4 Unknown, 103 Unchecked, 8.7s Time] [2022-11-21 17:12:02,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-21 17:12:02,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 44. [2022-11-21 17:12:02,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.1395348837209303) internal successors, (49), 43 states have internal predecessors, (49), 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 17:12:02,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 49 transitions. [2022-11-21 17:12:02,910 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 49 transitions. Word has length 22 [2022-11-21 17:12:02,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:12:02,910 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 49 transitions. [2022-11-21 17:12:02,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 1.7878787878787878) internal successors, (59), 33 states have internal predecessors, (59), 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 17:12:02,911 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2022-11-21 17:12:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 17:12:02,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:12:02,911 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:02,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 17:12:03,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:03,117 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:12:03,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:03,118 INFO L85 PathProgramCache]: Analyzing trace with hash -757863644, now seen corresponding path program 2 times [2022-11-21 17:12:03,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:03,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365594578] [2022-11-21 17:12:03,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:03,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:12:03,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:03,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365594578] [2022-11-21 17:12:03,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365594578] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:03,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176600824] [2022-11-21 17:12:03,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:12:03,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:03,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:03,245 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:03,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-21 17:12:03,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:12:03,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:12:03,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-21 17:12:03,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:12:03,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:12:03,531 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:12:03,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176600824] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:12:03,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:12:03,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2022-11-21 17:12:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745203162] [2022-11-21 17:12:03,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:12:03,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-21 17:12:03,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:03,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-21 17:12:03,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2022-11-21 17:12:03,533 INFO L87 Difference]: Start difference. First operand 44 states and 49 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 17:12:03,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:12:03,735 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2022-11-21 17:12:03,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-21 17:12:03,736 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 26 [2022-11-21 17:12:03,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:12:03,737 INFO L225 Difference]: With dead ends: 83 [2022-11-21 17:12:03,737 INFO L226 Difference]: Without dead ends: 61 [2022-11-21 17:12:03,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 41 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2022-11-21 17:12:03,738 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 62 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 17:12:03,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 55 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 17:12:03,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-21 17:12:03,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 38. [2022-11-21 17:12:03,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 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 17:12:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-11-21 17:12:03,748 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 26 [2022-11-21 17:12:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:12:03,749 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-11-21 17:12:03,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 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 17:12:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-11-21 17:12:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 17:12:03,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:12:03,750 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:03,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-21 17:12:03,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:03,960 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:12:03,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -980493622, now seen corresponding path program 3 times [2022-11-21 17:12:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:03,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58304236] [2022-11-21 17:12:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:03,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:12:04,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:04,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58304236] [2022-11-21 17:12:04,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58304236] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:04,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393616812] [2022-11-21 17:12:04,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 17:12:04,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:04,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:04,363 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:04,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-21 17:12:04,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-21 17:12:04,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:12:04,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-21 17:12:04,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:04,474 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 10 treesize of output 8 [2022-11-21 17:12:04,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:04,644 INFO L321 Elim1Store]: treesize reduction 20, result has 47.4 percent of original size [2022-11-21 17:12:04,644 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 27 treesize of output 37 [2022-11-21 17:12:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 17:12:04,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:12:05,041 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:12:05,041 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 938 treesize of output 882 [2022-11-21 17:12:05,059 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 874 treesize of output 802 [2022-11-21 17:12:17,557 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 395 treesize of output 379 [2022-11-21 17:12:17,576 INFO L321 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-11-21 17:12:17,577 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 357 treesize of output 282 [2022-11-21 17:12:17,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,603 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:17,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:17,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,637 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:17,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,654 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:17,666 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 643 treesize of output 611 [2022-11-21 17:12:17,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:17,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 125 [2022-11-21 17:12:17,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,733 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:17,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,742 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:17,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:17,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:17,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,910 INFO L321 Elim1Store]: treesize reduction 20, result has 39.4 percent of original size [2022-11-21 17:12:17,910 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 281 treesize of output 237 [2022-11-21 17:12:17,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:17,986 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 123 treesize of output 115 [2022-11-21 17:12:18,027 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,028 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 206 treesize of output 1 [2022-11-21 17:12:18,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,046 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,056 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,079 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,079 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 200 treesize of output 1 [2022-11-21 17:12:18,094 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,094 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 139 treesize of output 1 [2022-11-21 17:12:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,125 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-21 17:12:18,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 151 treesize of output 1 [2022-11-21 17:12:18,130 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,157 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-21 17:12:18,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 1 [2022-11-21 17:12:18,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,197 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,198 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 200 treesize of output 1 [2022-11-21 17:12:18,222 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,223 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 139 treesize of output 1 [2022-11-21 17:12:18,236 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,237 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 200 treesize of output 1 [2022-11-21 17:12:18,249 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 123 treesize of output 115 [2022-11-21 17:12:18,286 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-11-21 17:12:18,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 220 treesize of output 1 [2022-11-21 17:12:18,301 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,301 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 139 treesize of output 1 [2022-11-21 17:12:18,319 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,319 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 200 treesize of output 1 [2022-11-21 17:12:18,331 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,350 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,350 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 200 treesize of output 1 [2022-11-21 17:12:18,366 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,366 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 139 treesize of output 1 [2022-11-21 17:12:18,383 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,383 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 139 treesize of output 1 [2022-11-21 17:12:18,400 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-11-21 17:12:18,400 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 200 treesize of output 1 [2022-11-21 17:12:18,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,457 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:18,457 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 281 treesize of output 1 [2022-11-21 17:12:18,476 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-11-21 17:12:18,477 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 82 treesize of output 65 [2022-11-21 17:12:18,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,526 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:18,526 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 155 treesize of output 1 [2022-11-21 17:12:18,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,554 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:18,558 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 360 treesize of output 1 [2022-11-21 17:12:18,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,565 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,572 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,576 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-21 17:12:18,590 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,595 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:18,596 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 94 treesize of output 1 [2022-11-21 17:12:18,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,602 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,606 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,610 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-21 17:12:18,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,621 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:18,625 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,629 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-21 17:12:18,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,640 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:18,652 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,658 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:18,658 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 167 treesize of output 1 [2022-11-21 17:12:18,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,663 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,668 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,677 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,682 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 1 [2022-11-21 17:12:18,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,696 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,701 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-21 17:12:18,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,730 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:18,730 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 208 treesize of output 1 [2022-11-21 17:12:18,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,753 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:18,762 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,767 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:18,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,772 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,777 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2022-11-21 17:12:18,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,783 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,788 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:18,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,798 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:18,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,815 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 1 [2022-11-21 17:12:18,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,838 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 1 [2022-11-21 17:12:18,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,846 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 168 [2022-11-21 17:12:18,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,930 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:18,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,940 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2022-11-21 17:12:18,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,954 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,958 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,989 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:18,993 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2022-11-21 17:12:18,998 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:18,999 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,003 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:19,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,011 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,016 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,040 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,044 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:19,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,053 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,058 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2022-11-21 17:12:19,069 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,074 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:19,074 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 269 treesize of output 1 [2022-11-21 17:12:19,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,080 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,086 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,100 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2022-11-21 17:12:19,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,106 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,110 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,114 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-21 17:12:19,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,120 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-21 17:12:19,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,124 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,127 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 1 [2022-11-21 17:12:19,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,138 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 1 [2022-11-21 17:12:19,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,155 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:19,155 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 208 treesize of output 1 [2022-11-21 17:12:19,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,169 INFO L321 Elim1Store]: treesize reduction 18, result has 5.3 percent of original size [2022-11-21 17:12:19,169 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 269 treesize of output 1 [2022-11-21 17:12:19,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:19,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:19,355 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-21 17:12:19,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393616812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:12:19,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:12:19,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2022-11-21 17:12:19,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21039728] [2022-11-21 17:12:19,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:12:19,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-21 17:12:19,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:19,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-21 17:12:19,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=599, Unknown=0, NotChecked=0, Total=702 [2022-11-21 17:12:19,359 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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 17:12:21,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:12:21,909 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2022-11-21 17:12:21,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-11-21 17:12:21,910 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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 26 [2022-11-21 17:12:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:12:21,910 INFO L225 Difference]: With dead ends: 101 [2022-11-21 17:12:21,911 INFO L226 Difference]: Without dead ends: 73 [2022-11-21 17:12:21,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1144 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=846, Invalid=3710, Unknown=0, NotChecked=0, Total=4556 [2022-11-21 17:12:21,914 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 294 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 17:12:21,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 133 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 17:12:21,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-21 17:12:21,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 34. [2022-11-21 17:12:21,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 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 17:12:21,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-21 17:12:21,923 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 26 [2022-11-21 17:12:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:12:21,924 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-21 17:12:21,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.3333333333333335) internal successors, (63), 27 states have internal predecessors, (63), 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 17:12:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-21 17:12:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-21 17:12:21,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:12:21,925 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:21,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-21 17:12:22,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-21 17:12:22,131 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:12:22,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:22,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1750966422, now seen corresponding path program 4 times [2022-11-21 17:12:22,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:22,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930511191] [2022-11-21 17:12:22,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:22,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:22,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:22,477 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:12:22,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:22,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930511191] [2022-11-21 17:12:22,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930511191] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:22,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502472101] [2022-11-21 17:12:22,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-21 17:12:22,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:22,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:22,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:22,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-21 17:12:22,559 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-21 17:12:22,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:12:22,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 17:12:22,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 17:12:22,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:12:23,013 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:23,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502472101] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:12:23,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:12:23,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 13] total 25 [2022-11-21 17:12:23,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128057030] [2022-11-21 17:12:23,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:12:23,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-21 17:12:23,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:23,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-21 17:12:23,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-11-21 17:12:23,016 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 25 states, 25 states have (on average 2.32) internal successors, (58), 25 states have internal predecessors, (58), 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 17:12:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:12:23,585 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2022-11-21 17:12:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-21 17:12:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 25 states have internal predecessors, (58), 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 26 [2022-11-21 17:12:23,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:12:23,586 INFO L225 Difference]: With dead ends: 54 [2022-11-21 17:12:23,586 INFO L226 Difference]: Without dead ends: 45 [2022-11-21 17:12:23,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=310, Invalid=1022, Unknown=0, NotChecked=0, Total=1332 [2022-11-21 17:12:23,588 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 107 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 17:12:23,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 93 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 17:12:23,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-21 17:12:23,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 33. [2022-11-21 17:12:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.09375) 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 17:12:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-11-21 17:12:23,596 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2022-11-21 17:12:23,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:12:23,597 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-11-21 17:12:23,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.32) internal successors, (58), 25 states have internal predecessors, (58), 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 17:12:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-11-21 17:12:23,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-21 17:12:23,598 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:12:23,598 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:23,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-21 17:12:23,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:23,804 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:12:23,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:23,804 INFO L85 PathProgramCache]: Analyzing trace with hash 659943902, now seen corresponding path program 5 times [2022-11-21 17:12:23,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:23,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191278410] [2022-11-21 17:12:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:23,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:26,195 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:26,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:26,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191278410] [2022-11-21 17:12:26,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191278410] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:26,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593799954] [2022-11-21 17:12:26,196 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-21 17:12:26,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:26,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:26,198 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:26,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-21 17:12:26,363 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-11-21 17:12:26,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:12:26,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 54 conjunts are in the unsatisfiable core [2022-11-21 17:12:26,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:26,390 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 10 treesize of output 8 [2022-11-21 17:12:27,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:27,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 30 treesize of output 34 [2022-11-21 17:12:27,575 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:27,576 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 20 [2022-11-21 17:12:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:27,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:12:27,914 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:12:27,915 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 270 treesize of output 258 [2022-11-21 17:12:28,203 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-21 17:12:28,203 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 85 treesize of output 51 [2022-11-21 17:12:28,210 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 154 treesize of output 146 [2022-11-21 17:12:28,261 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-21 17:12:28,262 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 120 treesize of output 1 [2022-11-21 17:12:28,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,271 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 25 [2022-11-21 17:12:28,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,284 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 51 [2022-11-21 17:12:28,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,299 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2022-11-21 17:12:28,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,312 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 51 [2022-11-21 17:12:28,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,337 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 25 [2022-11-21 17:12:28,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,343 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,358 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-21 17:12:28,358 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 120 treesize of output 1 [2022-11-21 17:12:28,369 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-21 17:12:28,369 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 75 treesize of output 1 [2022-11-21 17:12:28,378 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-11-21 17:12:28,379 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 39 treesize of output 1 [2022-11-21 17:12:28,427 INFO L321 Elim1Store]: treesize reduction 13, result has 67.5 percent of original size [2022-11-21 17:12:28,427 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 141 [2022-11-21 17:12:28,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 159 treesize of output 111 [2022-11-21 17:12:28,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,504 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 54 [2022-11-21 17:12:28,554 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-21 17:12:28,555 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 159 treesize of output 111 [2022-11-21 17:12:28,595 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,596 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,598 WARN L207 Elim1Store]: Array PQE input equivalent to true [2022-11-21 17:12:28,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,634 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-11-21 17:12:28,635 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 92 treesize of output 58 [2022-11-21 17:12:28,702 INFO L321 Elim1Store]: treesize reduction 19, result has 52.5 percent of original size [2022-11-21 17:12:28,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 183 treesize of output 139 [2022-11-21 17:12:28,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,858 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-21 17:12:28,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 128 treesize of output 1 [2022-11-21 17:12:28,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,884 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2022-11-21 17:12:28,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,895 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2022-11-21 17:12:28,935 INFO L321 Elim1Store]: treesize reduction 23, result has 42.5 percent of original size [2022-11-21 17:12:28,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 159 treesize of output 131 [2022-11-21 17:12:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,969 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 1 [2022-11-21 17:12:28,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-21 17:12:28,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:28,996 INFO L321 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-11-21 17:12:28,997 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 50 treesize of output 1 [2022-11-21 17:12:29,023 INFO L321 Elim1Store]: treesize reduction 39, result has 2.5 percent of original size [2022-11-21 17:12:29,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 1 [2022-11-21 17:12:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:30,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593799954] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:12:30,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 17:12:30,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 49 [2022-11-21 17:12:30,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434368602] [2022-11-21 17:12:30,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 17:12:30,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-21 17:12:30,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:12:30,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-21 17:12:30,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1989, Unknown=0, NotChecked=0, Total=2352 [2022-11-21 17:12:30,451 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 49 states, 49 states have (on average 1.816326530612245) internal successors, (89), 49 states have internal predecessors, (89), 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 17:12:36,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:12:36,367 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2022-11-21 17:12:36,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-11-21 17:12:36,368 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.816326530612245) internal successors, (89), 49 states have internal predecessors, (89), 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 32 [2022-11-21 17:12:36,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:12:36,369 INFO L225 Difference]: With dead ends: 134 [2022-11-21 17:12:36,369 INFO L226 Difference]: Without dead ends: 119 [2022-11-21 17:12:36,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2349 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=1539, Invalid=7391, Unknown=0, NotChecked=0, Total=8930 [2022-11-21 17:12:36,371 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 364 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-21 17:12:36,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 241 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-21 17:12:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-11-21 17:12:36,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 58. [2022-11-21 17:12:36,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.105263157894737) internal successors, (63), 57 states have internal predecessors, (63), 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 17:12:36,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2022-11-21 17:12:36,387 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 32 [2022-11-21 17:12:36,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:12:36,387 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2022-11-21 17:12:36,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.816326530612245) internal successors, (89), 49 states have internal predecessors, (89), 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 17:12:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2022-11-21 17:12:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-21 17:12:36,388 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:12:36,389 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:12:36,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-21 17:12:36,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-21 17:12:36,591 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:12:36,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:12:36,591 INFO L85 PathProgramCache]: Analyzing trace with hash -837130924, now seen corresponding path program 6 times [2022-11-21 17:12:36,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:12:36,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714787696] [2022-11-21 17:12:36,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:12:36,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:12:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:12:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:38,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:12:38,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714787696] [2022-11-21 17:12:38,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714787696] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:12:38,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159781540] [2022-11-21 17:12:38,823 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-21 17:12:38,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:12:38,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:12:38,825 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:12:38,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_353f3e58-fd17-480f-9947-d884f7dbdd80/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-21 17:12:38,964 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-11-21 17:12:38,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:12:38,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 57 conjunts are in the unsatisfiable core [2022-11-21 17:12:38,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:12:38,981 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 10 treesize of output 8 [2022-11-21 17:12:39,150 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-21 17:12:39,401 INFO L321 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-21 17:12:39,401 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 38 treesize of output 42 [2022-11-21 17:12:39,607 INFO L321 Elim1Store]: treesize reduction 113, result has 25.7 percent of original size [2022-11-21 17:12:39,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 68 [2022-11-21 17:12:40,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-21 17:12:40,680 INFO L321 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2022-11-21 17:12:40,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 23 [2022-11-21 17:12:40,717 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:12:40,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:12:53,268 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-21 17:12:53,272 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 6619080 treesize of output 5689301 [2022-11-21 17:12:59,136 WARN L233 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 2149 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-21 17:12:59,465 INFO L321 Elim1Store]: treesize reduction 85, result has 28.6 percent of original size [2022-11-21 17:12:59,469 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 4 case distinctions, treesize of input 9994197 treesize of output 9281513 [2022-11-21 17:13:09,055 WARN L233 SmtUtils]: Spent 9.58s on a formula simplification that was a NOOP. DAG size: 2183 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-21 17:13:18,486 WARN L233 SmtUtils]: Spent 9.42s on a formula simplification that was a NOOP. DAG size: 2175 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-21 17:13:18,756 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-11-21 17:13:18,759 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 9871321 treesize of output 9461723 [2022-11-21 17:13:28,404 WARN L233 SmtUtils]: Spent 9.64s on a formula simplification that was a NOOP. DAG size: 2176 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-21 17:13:37,901 WARN L233 SmtUtils]: Spent 9.49s on a formula simplification that was a NOOP. DAG size: 2173 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-11-21 17:13:38,301 INFO L321 Elim1Store]: treesize reduction 23, result has 30.3 percent of original size [2022-11-21 17:13:38,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1328947159 treesize of output 1276780509