./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/pcomp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/pcomp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY --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 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:34:39,462 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:34:39,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:34:39,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:34:39,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:34:39,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:34:39,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:34:39,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:34:39,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:34:39,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:34:39,566 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:34:39,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:34:39,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:34:39,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:34:39,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:34:39,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:34:39,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:34:39,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:34:39,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:34:39,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:34:39,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:34:39,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:34:39,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:34:39,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:34:39,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:34:39,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:34:39,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:34:39,627 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:34:39,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:34:39,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:34:39,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:34:39,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:34:39,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:34:39,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:34:39,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:34:39,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:34:39,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:34:39,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:34:39,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:34:39,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:34:39,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:34:39,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:34:39,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:34:39,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:34:39,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:34:39,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:34:39,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:34:39,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:34:39,712 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:34:39,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:34:39,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:34:39,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:34:39,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:34:39,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:34:39,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:34:39,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:34:39,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:34:39,716 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:34:39,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:34:39,716 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:34:39,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:34:39,717 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:34:39,717 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:34:39,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:34:39,718 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:34:39,718 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:34:39,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:34:39,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:34:39,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:34:39,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:34:39,720 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:34:39,722 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:34:39,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:34:39,722 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:34:39,723 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_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 [2021-11-07 07:34:39,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:34:40,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:34:40,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:34:40,011 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:34:40,012 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:34:40,013 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/array-fpi/pcomp.c [2021-11-07 07:34:40,103 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/data/677f14d5d/3fe240c21ab140f7ab2406272d8bdc5c/FLAGc1b3768c0 [2021-11-07 07:34:40,662 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:34:40,662 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/sv-benchmarks/c/array-fpi/pcomp.c [2021-11-07 07:34:40,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/data/677f14d5d/3fe240c21ab140f7ab2406272d8bdc5c/FLAGc1b3768c0 [2021-11-07 07:34:41,060 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/data/677f14d5d/3fe240c21ab140f7ab2406272d8bdc5c [2021-11-07 07:34:41,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:34:41,067 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:34:41,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:34:41,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:34:41,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:34:41,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d6066b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41, skipping insertion in model container [2021-11-07 07:34:41,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:34:41,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:34:41,228 WARN L228 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_8d95df71-d4e4-4ec9-a40e-73fb63b78464/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2021-11-07 07:34:41,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:34:41,258 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:34:41,269 WARN L228 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_8d95df71-d4e4-4ec9-a40e-73fb63b78464/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2021-11-07 07:34:41,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:34:41,294 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:34:41,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41 WrapperNode [2021-11-07 07:34:41,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:34:41,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:34:41,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:34:41,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:34:41,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:34:41,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:34:41,338 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:34:41,338 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:34:41,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:34:41,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:34:41,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:34:41,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:34:41,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (1/1) ... [2021-11-07 07:34:41,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:34:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:41,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:34:41,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:34:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:34:41,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 07:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:34:41,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:34:41,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:34:41,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:34:41,777 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-07 07:34:41,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:34:41 BoogieIcfgContainer [2021-11-07 07:34:41,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:34:41,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:34:41,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:34:41,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:34:41,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:34:41" (1/3) ... [2021-11-07 07:34:41,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634530ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:34:41, skipping insertion in model container [2021-11-07 07:34:41,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:34:41" (2/3) ... [2021-11-07 07:34:41,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634530ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:34:41, skipping insertion in model container [2021-11-07 07:34:41,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:34:41" (3/3) ... [2021-11-07 07:34:41,789 INFO L111 eAbstractionObserver]: Analyzing ICFG pcomp.c [2021-11-07 07:34:41,795 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:34:41,796 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:34:41,912 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:34:41,927 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:34:41,942 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:34:41,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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) [2021-11-07 07:34:41,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 07:34:41,963 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:41,964 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:41,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:34:41,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:41,973 INFO L85 PathProgramCache]: Analyzing trace with hash -592971038, now seen corresponding path program 1 times [2021-11-07 07:34:41,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:41,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558158124] [2021-11-07 07:34:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:41,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:42,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:42,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:42,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558158124] [2021-11-07 07:34:42,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558158124] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:42,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:42,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:34:42,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294043592] [2021-11-07 07:34:42,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:34:42,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:42,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:34:42,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:34:42,252 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 7.0) internal successors, (14), 2 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) [2021-11-07 07:34:42,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:42,273 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-11-07 07:34:42,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:34:42,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 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 14 [2021-11-07 07:34:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:42,286 INFO L225 Difference]: With dead ends: 44 [2021-11-07 07:34:42,286 INFO L226 Difference]: Without dead ends: 20 [2021-11-07 07:34:42,291 INFO L786 BasicCegarLoop]: 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 [2021-11-07 07:34:42,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-07 07:34:42,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-07 07:34:42,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 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) [2021-11-07 07:34:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-07 07:34:42,333 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 14 [2021-11-07 07:34:42,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:42,334 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-07 07:34:42,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 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) [2021-11-07 07:34:42,335 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-07 07:34:42,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 07:34:42,336 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:42,336 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:42,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:34:42,337 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:34:42,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:42,341 INFO L85 PathProgramCache]: Analyzing trace with hash 108093540, now seen corresponding path program 1 times [2021-11-07 07:34:42,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:42,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925210291] [2021-11-07 07:34:42,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:42,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:42,410 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 07:34:42,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855049746] [2021-11-07 07:34:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:42,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:42,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:42,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:42,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:34:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:42,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:34:42,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:42,701 INFO L354 Elim1Store]: treesize reduction 55, result has 40.9 percent of original size [2021-11-07 07:34:42,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 45 [2021-11-07 07:34:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:42,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:42,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925210291] [2021-11-07 07:34:42,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 07:34:42,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855049746] [2021-11-07 07:34:42,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855049746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:42,952 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:42,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:34:42,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383835405] [2021-11-07 07:34:42,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:34:42,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:42,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:34:42,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:34:42,956 INFO L87 Difference]: Start difference. First operand 20 states and 23 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) [2021-11-07 07:34:43,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:43,064 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2021-11-07 07:34:43,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:34:43,065 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 14 [2021-11-07 07:34:43,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:43,066 INFO L225 Difference]: With dead ends: 39 [2021-11-07 07:34:43,066 INFO L226 Difference]: Without dead ends: 37 [2021-11-07 07:34:43,067 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:34:43,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-07 07:34:43,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2021-11-07 07:34:43,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 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) [2021-11-07 07:34:43,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-11-07 07:34:43,075 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 14 [2021-11-07 07:34:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:43,076 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-11-07 07:34:43,076 INFO L471 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) [2021-11-07 07:34:43,076 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2021-11-07 07:34:43,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 07:34:43,077 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:43,078 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:43,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:43,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-07 07:34:43,295 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:34:43,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1850906398, now seen corresponding path program 1 times [2021-11-07 07:34:43,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:43,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622604245] [2021-11-07 07:34:43,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:43,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:43,329 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 07:34:43,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257851263] [2021-11-07 07:34:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:43,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:43,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:43,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:43,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 07:34:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:43,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:34:43,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:43,539 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:43,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622604245] [2021-11-07 07:34:43,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 07:34:43,545 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257851263] [2021-11-07 07:34:43,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257851263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:43,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:43,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:34:43,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717675757] [2021-11-07 07:34:43,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:34:43,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:43,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:34:43,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:34:43,552 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:43,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:43,714 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2021-11-07 07:34:43,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:34:43,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 07:34:43,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:43,719 INFO L225 Difference]: With dead ends: 62 [2021-11-07 07:34:43,719 INFO L226 Difference]: Without dead ends: 50 [2021-11-07 07:34:43,721 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:34:43,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-07 07:34:43,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2021-11-07 07:34:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 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) [2021-11-07 07:34:43,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-11-07 07:34:43,737 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 16 [2021-11-07 07:34:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:43,737 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-11-07 07:34:43,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2021-11-07 07:34:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 07:34:43,740 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:43,740 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:43,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:43,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:43,955 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:34:43,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:43,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1060218526, now seen corresponding path program 1 times [2021-11-07 07:34:43,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:43,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345642621] [2021-11-07 07:34:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:43,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:43,985 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 07:34:43,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940636108] [2021-11-07 07:34:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:43,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:43,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:43,987 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:43,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 07:34:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:44,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:34:44,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:44,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:44,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345642621] [2021-11-07 07:34:44,170 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 07:34:44,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940636108] [2021-11-07 07:34:44,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940636108] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:44,171 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-11-07 07:34:44,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-11-07 07:34:44,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136036808] [2021-11-07 07:34:44,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:34:44,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:44,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:34:44,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:34:44,174 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:44,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:44,299 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2021-11-07 07:34:44,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:34:44,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 07:34:44,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:44,303 INFO L225 Difference]: With dead ends: 53 [2021-11-07 07:34:44,304 INFO L226 Difference]: Without dead ends: 44 [2021-11-07 07:34:44,304 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:34:44,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-07 07:34:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 30. [2021-11-07 07:34:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 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) [2021-11-07 07:34:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2021-11-07 07:34:44,317 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 16 [2021-11-07 07:34:44,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:44,317 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2021-11-07 07:34:44,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2021-11-07 07:34:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-07 07:34:44,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:44,320 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:44,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:44,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:44,547 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:34:44,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:44,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1120615462, now seen corresponding path program 1 times [2021-11-07 07:34:44,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:44,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915361063] [2021-11-07 07:34:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:44,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:44,567 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 07:34:44,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584052717] [2021-11-07 07:34:44,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:44,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:44,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:44,570 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:44,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 07:34:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:44,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 07:34:44,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:44,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:44,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915361063] [2021-11-07 07:34:44,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 07:34:44,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584052717] [2021-11-07 07:34:44,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584052717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:34:44,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:34:44,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 07:34:44,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483557278] [2021-11-07 07:34:44,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 07:34:44,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:44,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:34:44,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:34:44,820 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:45,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:45,006 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2021-11-07 07:34:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 07:34:45,007 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-07 07:34:45,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:45,008 INFO L225 Difference]: With dead ends: 48 [2021-11-07 07:34:45,008 INFO L226 Difference]: Without dead ends: 32 [2021-11-07 07:34:45,008 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:34:45,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-07 07:34:45,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-11-07 07:34:45,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2021-11-07 07:34:45,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-11-07 07:34:45,012 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 18 [2021-11-07 07:34:45,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:45,013 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-11-07 07:34:45,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:45,013 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-11-07 07:34:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 07:34:45,014 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:45,014 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:45,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:45,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:45,215 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:34:45,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:45,215 INFO L85 PathProgramCache]: Analyzing trace with hash 615941150, now seen corresponding path program 1 times [2021-11-07 07:34:45,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:45,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677729504] [2021-11-07 07:34:45,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:45,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:45,251 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 07:34:45,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397899589] [2021-11-07 07:34:45,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:45,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:45,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:45,253 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:45,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d95df71-d4e4-4ec9-a40e-73fb63b78464/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 07:34:45,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:45,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 07:34:45,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:45,541 INFO L354 Elim1Store]: treesize reduction 55, result has 40.9 percent of original size [2021-11-07 07:34:45,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 45 [2021-11-07 07:34:45,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 12 [2021-11-07 07:34:45,821 INFO L354 Elim1Store]: treesize reduction 54, result has 31.6 percent of original size [2021-11-07 07:34:45,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 49 treesize of output 60 [2021-11-07 07:34:48,156 INFO L354 Elim1Store]: treesize reduction 1607, result has 29.1 percent of original size [2021-11-07 07:34:48,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 53 case distinctions, treesize of input 282 treesize of output 842 [2021-11-07 07:39:42,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:42,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 148 [2021-11-07 07:39:42,878 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 07:39:43,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:43,603 INFO L354 Elim1Store]: treesize reduction 269, result has 25.5 percent of original size [2021-11-07 07:39:43,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 14 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 250 treesize of output 263 [2021-11-07 07:39:44,564 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 07:39:44,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:44,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 142 [2021-11-07 07:39:46,038 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 07:39:46,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,511 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:39:46,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:46,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 163 [2021-11-07 07:39:49,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:49,911 INFO L354 Elim1Store]: treesize reduction 271, result has 27.7 percent of original size [2021-11-07 07:39:49,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 13 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 17 case distinctions, treesize of input 510 treesize of output 525 [2021-11-07 07:39:52,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,912 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 07:39:52,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:52,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 478 treesize of output 370 [2021-11-07 07:39:53,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:53,618 INFO L354 Elim1Store]: treesize reduction 295, result has 18.3 percent of original size [2021-11-07 07:39:53,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 14 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 521 treesize of output 468 [2021-11-07 07:39:57,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:39:57,831 INFO L354 Elim1Store]: treesize reduction 319, result has 22.4 percent of original size [2021-11-07 07:39:57,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 11 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 1451 treesize of output 1394 [2021-11-07 07:40:03,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,060 INFO L354 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2021-11-07 07:40:03,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 19 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 1408 treesize of output 1283 [2021-11-07 07:40:03,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 07:40:03,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 478 treesize of output 383