./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array3_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array3_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP --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 8c9f77a5f5cfb41429e6b2e557580f5f8a855ca718c241fb5a07541ef3b21ab2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:42:36,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:42:36,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:42:36,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:42:36,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:42:37,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:42:37,021 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:42:37,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:42:37,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:42:37,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:42:37,026 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:42:37,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:42:37,027 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:42:37,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:42:37,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:42:37,032 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:42:37,033 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:42:37,033 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:42:37,034 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:42:37,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:42:37,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:42:37,035 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:42:37,035 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:42:37,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:42:37,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:42:37,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:42:37,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:42:37,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:42:37,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:37,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:42:37,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:42:37,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:42:37,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:42:37,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:42:37,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:42:37,042 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:42:37,042 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:42:37,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:42:37,043 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:42:37,043 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9f77a5f5cfb41429e6b2e557580f5f8a855ca718c241fb5a07541ef3b21ab2 [2023-11-06 22:42:37,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:42:37,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:42:37,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:42:37,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:42:37,298 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:42:37,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/array-patterns/array3_pattern.c [2023-11-06 22:42:40,392 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:42:40,676 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:42:40,676 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/sv-benchmarks/c/array-patterns/array3_pattern.c [2023-11-06 22:42:40,683 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/data/367bf30d1/1a4c4ab8b2a04238ae1ba94ecb14abd3/FLAG10936bfc8 [2023-11-06 22:42:40,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/data/367bf30d1/1a4c4ab8b2a04238ae1ba94ecb14abd3 [2023-11-06 22:42:40,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:42:40,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:42:40,710 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:40,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:42:40,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:42:40,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f56cebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40, skipping insertion in model container [2023-11-06 22:42:40,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,743 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:42:40,877 WARN L240 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_402f8765-cc3a-4ee3-86e8-1a375ea225ef/sv-benchmarks/c/array-patterns/array3_pattern.c[1393,1406] [2023-11-06 22:42:40,897 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:40,907 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:42:40,920 WARN L240 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_402f8765-cc3a-4ee3-86e8-1a375ea225ef/sv-benchmarks/c/array-patterns/array3_pattern.c[1393,1406] [2023-11-06 22:42:40,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:42:40,945 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:42:40,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40 WrapperNode [2023-11-06 22:42:40,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:42:40,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:40,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:42:40,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:42:40,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,984 INFO L138 Inliner]: procedures = 17, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 90 [2023-11-06 22:42:40,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:42:40,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:42:40,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:42:40,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:42:40,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:40,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:41,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:41,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:41,010 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:41,011 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:41,017 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:42:41,018 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:42:41,018 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:42:41,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:42:41,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (1/1) ... [2023-11-06 22:42:41,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:42:41,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:41,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:42:41,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:42:41,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:42:41,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:42:41,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:42:41,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:42:41,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:42:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:42:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure square [2023-11-06 22:42:41,097 INFO L138 BoogieDeclarations]: Found implementation of procedure square [2023-11-06 22:42:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:42:41,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:42:41,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:42:41,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:42:41,166 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:42:41,167 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:42:41,381 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:42:41,388 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:42:41,388 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:42:41,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:41 BoogieIcfgContainer [2023-11-06 22:42:41,391 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:42:41,394 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:42:41,394 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:42:41,398 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:42:41,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:42:40" (1/3) ... [2023-11-06 22:42:41,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478ad66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:41, skipping insertion in model container [2023-11-06 22:42:41,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:42:40" (2/3) ... [2023-11-06 22:42:41,399 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@478ad66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:42:41, skipping insertion in model container [2023-11-06 22:42:41,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:42:41" (3/3) ... [2023-11-06 22:42:41,401 INFO L112 eAbstractionObserver]: Analyzing ICFG array3_pattern.c [2023-11-06 22:42:41,419 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:42:41,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:42:41,464 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:42:41,470 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;@419ac7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:42:41,470 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:42:41,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:42:41,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-06 22:42:41,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:41,482 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:41,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:41,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:41,487 INFO L85 PathProgramCache]: Analyzing trace with hash -87958078, now seen corresponding path program 1 times [2023-11-06 22:42:41,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:41,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871696638] [2023-11-06 22:42:41,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:41,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:42:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:41,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:41,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:41,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871696638] [2023-11-06 22:42:41,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871696638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:41,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:41,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:42:41,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200795713] [2023-11-06 22:42:41,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:41,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:42:41,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:41,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:42:41,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:41,691 INFO L87 Difference]: Start difference. First operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 25 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:42:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:41,715 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2023-11-06 22:42:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:42:41,717 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-11-06 22:42:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:41,724 INFO L225 Difference]: With dead ends: 61 [2023-11-06 22:42:41,726 INFO L226 Difference]: Without dead ends: 28 [2023-11-06 22:42:41,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:42:41,733 INFO L413 NwaCegarLoop]: 36 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, 36 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 [2023-11-06 22:42:41,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:42:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-06 22:42:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-06 22:42:41,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:42:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-11-06 22:42:41,793 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 15 [2023-11-06 22:42:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:41,793 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-06 22:42:41,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:42:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-11-06 22:42:41,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:42:41,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:41,796 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:41,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:42:41,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:41,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:41,797 INFO L85 PathProgramCache]: Analyzing trace with hash 100431803, now seen corresponding path program 1 times [2023-11-06 22:42:41,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:41,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042699634] [2023-11-06 22:42:41,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:41,834 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:42:41,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [824569177] [2023-11-06 22:42:41,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:41,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:41,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:41,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:41,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:42:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:41,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:42:41,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:42,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 22:42:42,092 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:42,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:42,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042699634] [2023-11-06 22:42:42,093 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:42:42,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824569177] [2023-11-06 22:42:42,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824569177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:42,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:42,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:42:42,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411972156] [2023-11-06 22:42:42,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:42,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:42:42,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:42,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:42:42,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:42:42,097 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:42:42,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:42,136 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2023-11-06 22:42:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:42:42,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2023-11-06 22:42:42,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:42,138 INFO L225 Difference]: With dead ends: 35 [2023-11-06 22:42:42,138 INFO L226 Difference]: Without dead ends: 31 [2023-11-06 22:42:42,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:42:42,140 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 5 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:42,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 77 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:42:42,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-06 22:42:42,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-11-06 22:42:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:42:42,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-11-06 22:42:42,151 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 22 [2023-11-06 22:42:42,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:42,152 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-11-06 22:42:42,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:42:42,152 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-11-06 22:42:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 22:42:42,154 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:42,154 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:42,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:42,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-06 22:42:42,360 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:42,361 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:42,362 INFO L85 PathProgramCache]: Analyzing trace with hash -562345857, now seen corresponding path program 1 times [2023-11-06 22:42:42,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:42,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041799213] [2023-11-06 22:42:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:42,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:42,452 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:42:42,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1251549668] [2023-11-06 22:42:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:42,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:42,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:42,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:42,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:42:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:42,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:42:42,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:42,677 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:42:42,677 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:42:42,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:42:42,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041799213] [2023-11-06 22:42:42,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:42:42,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251549668] [2023-11-06 22:42:42,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251549668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:42:42,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:42:42,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:42:42,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868740115] [2023-11-06 22:42:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:42:42,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:42:42,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:42:42,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:42:42,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:42:42,681 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-06 22:42:42,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:42:42,779 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2023-11-06 22:42:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:42:42,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 34 [2023-11-06 22:42:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:42:42,783 INFO L225 Difference]: With dead ends: 59 [2023-11-06 22:42:42,783 INFO L226 Difference]: Without dead ends: 36 [2023-11-06 22:42:42,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:42:42,788 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:42:42,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 88 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:42:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-06 22:42:42,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2023-11-06 22:42:42,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:42:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2023-11-06 22:42:42,807 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 34 [2023-11-06 22:42:42,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:42:42,807 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2023-11-06 22:42:42,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-06 22:42:42,808 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2023-11-06 22:42:42,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-06 22:42:42,809 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:42:42,809 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:42:42,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:42:43,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-06 22:42:43,015 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:42:43,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:42:43,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1168592577, now seen corresponding path program 1 times [2023-11-06 22:42:43,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:42:43,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112398482] [2023-11-06 22:42:43,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:43,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:42:43,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:42:43,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [641000491] [2023-11-06 22:42:43,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:42:43,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:42:43,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:42:43,059 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:42:43,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:42:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:42:43,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-06 22:42:43,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:42:43,328 INFO L351 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 [2023-11-06 22:42:43,428 INFO L351 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 27 treesize of output 15 [2023-11-06 22:42:44,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:42:44,165 INFO L322 Elim1Store]: treesize reduction 100, result has 13.0 percent of original size [2023-11-06 22:42:44,166 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 41 [2023-11-06 22:42:44,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:42:44,987 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:43:09,457 WARN L861 $PredicateComparison]: unable to prove that (let ((.cse14 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (let ((.cse8 (* .cse14 4)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((v_z_4 Int)) (let ((.cse0 (+ .cse14 v_z_4))) (or (< 6442450943 .cse0) (< .cse0 4294967296) (forall ((v_y_4 Int)) (let ((.cse12 (* v_y_4 4294967296)) (.cse13 (* 4294967295 v_z_4))) (let ((.cse11 (+ .cse12 .cse13))) (or (let ((.cse7 (* |c_ULTIMATE.start_main_~num~0#1| .cse11))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse10 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_4) (* 17179869184 v_y_4)))) (store .cse9 .cse10 (+ (* .cse7 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse10))))))) (let ((.cse3 (let ((.cse5 (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse6 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* v_z_4 4) .cse8))) (store .cse5 .cse6 (+ .cse7 (select .cse5 .cse6)))))) (= (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse1 (select (select (store .cse2 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse3) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse1 .cse1))) (+ (let ((.cse4 (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse4 .cse4)) |c_ULTIMATE.start_main_~sum2~0#1|))))) (< .cse11 0) (< c_~ARR_SIZE~0 (+ .cse12 .cse13 1)))))) (< 4294967295 v_z_4)))) (forall ((v_z_2 Int)) (or (< 4294967295 v_z_2) (forall ((v_y_2 Int)) (let ((.cse15 (* v_y_2 4294967296)) (.cse16 (* 4294967295 v_z_2))) (let ((.cse17 (+ .cse15 .cse16))) (or (< c_~ARR_SIZE~0 (+ .cse15 .cse16 1)) (< .cse17 0) (let ((.cse24 (* .cse17 |c_ULTIMATE.start_main_~num~0#1|))) (let ((.cse19 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse25 (+ (* 17179869180 v_z_2) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_2)))) (store .cse9 .cse25 (+ (* .cse24 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse25))))))) (let ((.cse20 (let ((.cse22 (select .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse23 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* v_z_2 4) .cse8 (- 34359738368)))) (store .cse22 .cse23 (+ .cse24 (select .cse22 .cse23)))))) (= (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse18 (select (select (store .cse19 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse20) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse18 .cse18))) (+ (let ((.cse21 (select .cse20 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse21 .cse21)) |c_ULTIMATE.start_main_~sum2~0#1|))))))))) (< (+ .cse14 v_z_2) 6442450944))) (forall ((v_z_4 Int)) (or (< 2147483647 (+ .cse14 v_z_4)) (< v_z_4 0) (forall ((v_y_4 Int)) (let ((.cse35 (* v_y_4 4294967296)) (.cse36 (* 4294967295 v_z_4))) (let ((.cse34 (+ .cse35 .cse36))) (let ((.cse32 (* |c_ULTIMATE.start_main_~num~0#1| .cse34))) (let ((.cse27 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse41 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_4) (* 17179869184 v_y_4)))) (store .cse9 .cse41 (+ (* .cse32 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse41))))))) (let ((.cse30 (select .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse33 (* v_z_4 4))) (or (let ((.cse28 (let ((.cse31 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse33 .cse8))) (store .cse30 .cse31 (+ .cse32 (select .cse30 .cse31)))))) (= (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse26 (select (select (store .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse28) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse26 .cse26))) (+ (let ((.cse29 (select .cse28 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse29 .cse29)) |c_ULTIMATE.start_main_~sum2~0#1|))) (< .cse34 0) (< c_~ARR_SIZE~0 (+ .cse35 .cse36 1)) (let ((.cse38 (let ((.cse40 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse33 .cse8))) (store .cse30 .cse40 (+ (select .cse30 .cse40) .cse32))))) (= (+ |c_ULTIMATE.start_main_~sum2~0#1| (let ((.cse37 (select .cse38 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse37 .cse37))) (+ (let ((.cse39 (select (select (store .cse27 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse38) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse39 .cse39)) |c_ULTIMATE.start_main_~sum1~0#1|)))))))))))) (forall ((v_z_2 Int)) (or (< 4294967295 v_z_2) (forall ((v_y_2 Int)) (let ((.cse42 (* v_y_2 4294967296)) (.cse43 (* 4294967295 v_z_2))) (let ((.cse44 (+ .cse42 .cse43))) (let ((.cse51 (* .cse44 |c_ULTIMATE.start_main_~num~0#1|))) (let ((.cse48 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse57 (+ (* 17179869180 v_z_2) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_2)))) (store .cse9 .cse57 (+ (* .cse51 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse57))))))) (let ((.cse49 (select .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse52 (* v_z_2 4))) (or (< c_~ARR_SIZE~0 (+ .cse42 .cse43 1)) (< .cse44 0) (let ((.cse46 (let ((.cse50 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse52 .cse8))) (store .cse49 .cse50 (+ (select .cse49 .cse50) .cse51))))) (= (+ |c_ULTIMATE.start_main_~sum2~0#1| (let ((.cse45 (select .cse46 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse45 .cse45))) (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse47 (select (select (store .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse46) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse47 .cse47))))) (let ((.cse54 (let ((.cse56 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse52 .cse8 (- 34359738368)))) (store .cse49 .cse56 (+ .cse51 (select .cse49 .cse56)))))) (= (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse53 (select (select (store .cse48 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse54) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse53 .cse53))) (+ (let ((.cse55 (select .cse54 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse55 .cse55)) |c_ULTIMATE.start_main_~sum2~0#1|)))))))))) (< (+ .cse14 v_z_2) 6442450944))) (forall ((v_z_2 Int)) (let ((.cse69 (+ .cse14 v_z_2))) (or (forall ((v_y_2 Int)) (let ((.cse58 (* v_y_2 4294967296)) (.cse59 (* 4294967295 v_z_2))) (let ((.cse60 (+ .cse58 .cse59))) (or (< c_~ARR_SIZE~0 (+ .cse58 .cse59 1)) (< .cse60 0) (let ((.cse67 (* .cse60 |c_ULTIMATE.start_main_~num~0#1|))) (let ((.cse64 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse68 (+ (* 17179869180 v_z_2) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_2)))) (store .cse9 .cse68 (+ (* .cse67 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse68))))))) (let ((.cse62 (let ((.cse65 (select .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse66 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* v_z_2 4) .cse8))) (store .cse65 .cse66 (+ (select .cse65 .cse66) .cse67))))) (= (+ |c_ULTIMATE.start_main_~sum2~0#1| (let ((.cse61 (select .cse62 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse61 .cse61))) (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse63 (select (select (store .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse62) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse63 .cse63))))))))))) (< .cse69 2147483648) (< v_z_2 0) (< 4294967295 .cse69)))) (forall ((v_z_2 Int)) (let ((.cse86 (+ .cse14 v_z_2))) (or (forall ((v_y_2 Int)) (let ((.cse70 (* v_y_2 4294967296)) (.cse71 (* 4294967295 v_z_2))) (let ((.cse72 (+ .cse70 .cse71))) (let ((.cse79 (* .cse72 |c_ULTIMATE.start_main_~num~0#1|))) (let ((.cse76 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse85 (+ (* 17179869180 v_z_2) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869184 v_y_2)))) (store .cse9 .cse85 (+ (* .cse79 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse85))))))) (let ((.cse77 (select .cse76 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse80 (* v_z_2 4))) (or (< c_~ARR_SIZE~0 (+ .cse70 .cse71 1)) (< .cse72 0) (let ((.cse74 (let ((.cse78 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse80 .cse8))) (store .cse77 .cse78 (+ (select .cse77 .cse78) .cse79))))) (= (+ |c_ULTIMATE.start_main_~sum2~0#1| (let ((.cse73 (select .cse74 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse73 .cse73))) (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse75 (select (select (store .cse76 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse74) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse75 .cse75))))) (let ((.cse82 (let ((.cse84 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse80 .cse8 (- 34359738368)))) (store .cse77 .cse84 (+ .cse79 (select .cse77 .cse84)))))) (= (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse81 (select (select (store .cse76 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse82) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse81 .cse81))) (+ (let ((.cse83 (select .cse82 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse83 .cse83)) |c_ULTIMATE.start_main_~sum2~0#1|)))))))))) (< .cse86 2147483648) (< v_z_2 0) (< 4294967295 .cse86)))) (forall ((v_z_4 Int)) (or (< 2147483647 (+ .cse14 v_z_4)) (< v_z_4 0) (forall ((v_y_4 Int)) (let ((.cse88 (* v_y_4 4294967296)) (.cse89 (* 4294967295 v_z_4))) (let ((.cse87 (+ .cse88 .cse89))) (or (< .cse87 0) (< c_~ARR_SIZE~0 (+ .cse88 .cse89 1)) (let ((.cse96 (* |c_ULTIMATE.start_main_~num~0#1| .cse87))) (let ((.cse93 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse97 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_4) (* 17179869184 v_y_4)))) (store .cse9 .cse97 (+ (* .cse96 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse97))))))) (let ((.cse91 (let ((.cse94 (select .cse93 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse95 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* v_z_4 4) .cse8))) (store .cse94 .cse95 (+ (select .cse94 .cse95) .cse96))))) (= (+ |c_ULTIMATE.start_main_~sum2~0#1| (let ((.cse90 (select .cse91 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse90 .cse90))) (+ (let ((.cse92 (select (select (store .cse93 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse91) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse92 .cse92)) |c_ULTIMATE.start_main_~sum1~0#1|))))))))))) (forall ((v_z_4 Int)) (let ((.cse98 (+ .cse14 v_z_4))) (or (< 6442450943 .cse98) (< .cse98 4294967296) (< 4294967295 v_z_4) (forall ((v_y_4 Int)) (let ((.cse108 (* v_y_4 4294967296)) (.cse109 (* 4294967295 v_z_4))) (let ((.cse107 (+ .cse108 .cse109))) (let ((.cse105 (* |c_ULTIMATE.start_main_~num~0#1| .cse107))) (let ((.cse100 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse114 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_4) (* 17179869184 v_y_4)))) (store .cse9 .cse114 (+ (* .cse105 |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse114))))))) (let ((.cse103 (select .cse100 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse106 (* v_z_4 4))) (or (let ((.cse101 (let ((.cse104 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse106 .cse8))) (store .cse103 .cse104 (+ .cse105 (select .cse103 .cse104)))))) (= (+ |c_ULTIMATE.start_main_~sum1~0#1| (let ((.cse99 (select (select (store .cse100 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse101) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse99 .cse99))) (+ (let ((.cse102 (select .cse101 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse102 .cse102)) |c_ULTIMATE.start_main_~sum2~0#1|))) (< .cse107 0) (< c_~ARR_SIZE~0 (+ .cse108 .cse109 1)) (let ((.cse111 (let ((.cse113 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse106 .cse8))) (store .cse103 .cse113 (+ (select .cse103 .cse113) .cse105))))) (= (+ |c_ULTIMATE.start_main_~sum2~0#1| (let ((.cse110 (select .cse111 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) (* .cse110 .cse110))) (+ (let ((.cse112 (select (select (store .cse100 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse111) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (* .cse112 .cse112)) |c_ULTIMATE.start_main_~sum1~0#1|)))))))))))))))) is different from true [2023-11-06 22:43:09,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:09,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112398482] [2023-11-06 22:43:09,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:43:09,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641000491] [2023-11-06 22:43:09,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641000491] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:43:09,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:43:09,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2023-11-06 22:43:09,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913485512] [2023-11-06 22:43:09,468 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-06 22:43:09,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-06 22:43:09,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-06 22:43:09,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=921, Unknown=1, NotChecked=62, Total=1122 [2023-11-06 22:43:09,475 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 24 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 18 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:43:11,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:11,999 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2023-11-06 22:43:12,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-06 22:43:12,000 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 18 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2023-11-06 22:43:12,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:12,002 INFO L225 Difference]: With dead ends: 82 [2023-11-06 22:43:12,002 INFO L226 Difference]: Without dead ends: 78 [2023-11-06 22:43:12,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=415, Invalid=2240, Unknown=1, NotChecked=100, Total=2756 [2023-11-06 22:43:12,007 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 105 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:12,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 231 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:43:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-06 22:43:12,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 61. [2023-11-06 22:43:12,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 46 states have internal predecessors, (52), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-06 22:43:12,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2023-11-06 22:43:12,028 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 36 [2023-11-06 22:43:12,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:12,028 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2023-11-06 22:43:12,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 18 states have internal predecessors, (28), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 22:43:12,029 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2023-11-06 22:43:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-06 22:43:12,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:12,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:12,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-06 22:43:12,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:12,241 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:12,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:12,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1846883197, now seen corresponding path program 2 times [2023-11-06 22:43:12,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:12,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880504745] [2023-11-06 22:43:12,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:12,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:12,301 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:43:12,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1113350102] [2023-11-06 22:43:12,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:43:12,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:12,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:12,308 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:12,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:43:12,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:43:12,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:12,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:43:12,406 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:12,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-06 22:43:12,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:43:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-06 22:43:12,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880504745] [2023-11-06 22:43:12,563 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:43:12,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113350102] [2023-11-06 22:43:12,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113350102] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:43:12,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:43:12,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-06 22:43:12,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85443700] [2023-11-06 22:43:12,566 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:43:12,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:43:12,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:43:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:43:12,569 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-06 22:43:12,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:12,831 INFO L93 Difference]: Finished difference Result 79 states and 91 transitions. [2023-11-06 22:43:12,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-06 22:43:12,831 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 38 [2023-11-06 22:43:12,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:12,837 INFO L225 Difference]: With dead ends: 79 [2023-11-06 22:43:12,837 INFO L226 Difference]: Without dead ends: 75 [2023-11-06 22:43:12,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:43:12,839 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 40 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:12,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 145 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:43:12,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-06 22:43:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70. [2023-11-06 22:43:12,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 52 states have internal predecessors, (58), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:43:12,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2023-11-06 22:43:12,871 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 38 [2023-11-06 22:43:12,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:12,871 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2023-11-06 22:43:12,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2023-11-06 22:43:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2023-11-06 22:43:12,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-06 22:43:12,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:12,875 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:12,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-06 22:43:13,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:13,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:13,080 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:13,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1867659643, now seen corresponding path program 3 times [2023-11-06 22:43:13,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:13,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245771139] [2023-11-06 22:43:13,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:13,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:13,117 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:43:13,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [418037219] [2023-11-06 22:43:13,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:43:13,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:13,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:13,127 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:13,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:43:13,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-06 22:43:13,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:13,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:43:13,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:13,288 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-06 22:43:13,289 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:43:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:43:13,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:13,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245771139] [2023-11-06 22:43:13,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 22:43:13,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418037219] [2023-11-06 22:43:13,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418037219] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:43:13,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:43:13,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-06 22:43:13,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052021514] [2023-11-06 22:43:13,364 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:43:13,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:43:13,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:13,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:43:13,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:43:13,366 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-06 22:43:13,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:13,519 INFO L93 Difference]: Finished difference Result 80 states and 91 transitions. [2023-11-06 22:43:13,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:43:13,520 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 48 [2023-11-06 22:43:13,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:13,521 INFO L225 Difference]: With dead ends: 80 [2023-11-06 22:43:13,521 INFO L226 Difference]: Without dead ends: 48 [2023-11-06 22:43:13,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:43:13,523 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 44 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:13,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 97 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:43:13,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-06 22:43:13,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2023-11-06 22:43:13,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:43:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 47 transitions. [2023-11-06 22:43:13,533 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 47 transitions. Word has length 48 [2023-11-06 22:43:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:13,533 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 47 transitions. [2023-11-06 22:43:13,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 9 states have internal predecessors, (40), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-06 22:43:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2023-11-06 22:43:13,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:43:13,540 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:13,540 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:13,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-06 22:43:13,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:13,746 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:43:13,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:13,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1239986503, now seen corresponding path program 4 times [2023-11-06 22:43:13,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:13,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095091050] [2023-11-06 22:43:13,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:13,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:13,767 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 22:43:13,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468419052] [2023-11-06 22:43:13,767 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:43:13,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:13,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:13,768 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:13,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_402f8765-cc3a-4ee3-86e8-1a375ea225ef/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:43:14,107 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:43:14,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:43:14,110 WARN L260 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 104 conjunts are in the unsatisfiable core [2023-11-06 22:43:14,119 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:14,176 INFO L351 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 [2023-11-06 22:43:14,226 INFO L351 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 27 treesize of output 15 [2023-11-06 22:43:14,383 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 35 [2023-11-06 22:43:15,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:43:15,332 INFO L322 Elim1Store]: treesize reduction 353, result has 14.1 percent of original size [2023-11-06 22:43:15,333 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 6 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 38 case distinctions, treesize of input 212 treesize of output 214 [2023-11-06 22:43:15,463 INFO L322 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2023-11-06 22:43:15,463 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 179 treesize of output 184 [2023-11-06 22:43:15,573 INFO L322 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2023-11-06 22:43:15,573 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 96 treesize of output 157 [2023-11-06 22:43:15,698 INFO L322 Elim1Store]: treesize reduction 95, result has 22.8 percent of original size [2023-11-06 22:43:15,699 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 124 treesize of output 70 [2023-11-06 22:43:15,839 INFO L322 Elim1Store]: treesize reduction 75, result has 27.2 percent of original size [2023-11-06 22:43:15,839 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 51 [2023-11-06 22:43:16,018 INFO L322 Elim1Store]: treesize reduction 71, result has 25.3 percent of original size [2023-11-06 22:43:16,018 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 115 treesize of output 122 [2023-11-06 22:43:16,042 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-11-06 22:43:27,066 WARN L293 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 476 DAG size of output: 392 (called from [L 319] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-06 22:43:27,067 INFO L322 Elim1Store]: treesize reduction 480, result has 67.3 percent of original size [2023-11-06 22:43:27,068 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 23 select indices, 23 select index equivalence classes, 1 disjoint index pairs (out of 253 index pairs), introduced 26 new quantified variables, introduced 253 case distinctions, treesize of input 322 treesize of output 1161