./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-patterns/array2_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-patterns/array2_pattern.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --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 1a25becec148beba97bef86c2a84619bb26dfafe7c127e8d70246837f0d2d470 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:18:22,240 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:18:22,364 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:18:22,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:18:22,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:18:22,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:18:22,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:18:22,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:18:22,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:18:22,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:18:22,411 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:18:22,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:18:22,413 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:18:22,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:18:22,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:18:22,420 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:18:22,422 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:18:22,422 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:18:22,423 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:18:22,424 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:18:22,424 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:18:22,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:18:22,425 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:18:22,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:18:22,426 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:18:22,427 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:18:22,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:18:22,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:18:22,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:22,429 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:18:22,430 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:18:22,430 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:18:22,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:18:22,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:18:22,431 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:18:22,431 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:18:22,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:18:22,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:18:22,432 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:18:22,432 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_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a25becec148beba97bef86c2a84619bb26dfafe7c127e8d70246837f0d2d470 [2023-11-12 02:18:22,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:18:22,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:18:22,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:18:22,723 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:18:22,723 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:18:22,725 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/array-patterns/array2_pattern.c [2023-11-12 02:18:25,944 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:18:26,158 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:18:26,159 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/sv-benchmarks/c/array-patterns/array2_pattern.c [2023-11-12 02:18:26,167 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/data/c01bc861a/8758bf484a5a4fe6b83de0376286480f/FLAG8b4e111f8 [2023-11-12 02:18:26,187 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/data/c01bc861a/8758bf484a5a4fe6b83de0376286480f [2023-11-12 02:18:26,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:18:26,192 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:18:26,194 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:26,194 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:18:26,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:18:26,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d809c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26, skipping insertion in model container [2023-11-12 02:18:26,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,230 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:18:26,410 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_687cb52d-50cf-489c-9293-53fb12d860d6/sv-benchmarks/c/array-patterns/array2_pattern.c[1322,1335] [2023-11-12 02:18:26,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:26,442 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:18:26,455 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_687cb52d-50cf-489c-9293-53fb12d860d6/sv-benchmarks/c/array-patterns/array2_pattern.c[1322,1335] [2023-11-12 02:18:26,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:18:26,482 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:18:26,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26 WrapperNode [2023-11-12 02:18:26,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:18:26,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:26,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:18:26,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:18:26,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,525 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2023-11-12 02:18:26,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:18:26,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:18:26,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:18:26,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:18:26,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,540 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,552 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:18:26,559 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:18:26,559 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:18:26,559 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:18:26,560 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (1/1) ... [2023-11-12 02:18:26,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:18:26,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:26,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:18:26,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:18:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:18:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:18:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:18:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:18:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:18:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:18:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:18:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:18:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:18:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:18:26,716 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:18:26,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:18:26,928 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:18:26,935 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:18:26,936 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-12 02:18:26,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:26 BoogieIcfgContainer [2023-11-12 02:18:26,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:18:26,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:18:26,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:18:26,946 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:18:26,946 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:18:26" (1/3) ... [2023-11-12 02:18:26,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f555929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:26, skipping insertion in model container [2023-11-12 02:18:26,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:18:26" (2/3) ... [2023-11-12 02:18:26,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f555929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:18:26, skipping insertion in model container [2023-11-12 02:18:26,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:18:26" (3/3) ... [2023-11-12 02:18:26,950 INFO L112 eAbstractionObserver]: Analyzing ICFG array2_pattern.c [2023-11-12 02:18:26,973 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:18:26,973 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:18:27,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:18:27,034 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=LoopHeads, 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;@2c68a11d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:18:27,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:18:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 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) [2023-11-12 02:18:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:18:27,047 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:27,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:27,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:27,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:27,054 INFO L85 PathProgramCache]: Analyzing trace with hash -800294020, now seen corresponding path program 1 times [2023-11-12 02:18:27,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:27,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502833187] [2023-11-12 02:18:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:27,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:18:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:27,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:27,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502833187] [2023-11-12 02:18:27,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502833187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:27,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:27,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:18:27,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119659250] [2023-11-12 02:18:27,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:27,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:18:27,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:27,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:18:27,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:18:27,354 INFO L87 Difference]: Start difference. First operand has 25 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 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) 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) [2023-11-12 02:18:27,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:27,376 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2023-11-12 02:18:27,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:18:27,379 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 [2023-11-12 02:18:27,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:27,387 INFO L225 Difference]: With dead ends: 47 [2023-11-12 02:18:27,387 INFO L226 Difference]: Without dead ends: 21 [2023-11-12 02:18:27,431 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 [2023-11-12 02:18:27,452 INFO L413 NwaCegarLoop]: 28 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, 28 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 [2023-11-12 02:18:27,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:27,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-12 02:18:27,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-12 02:18:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2023-11-12 02:18:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2023-11-12 02:18:27,523 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 15 [2023-11-12 02:18:27,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:27,524 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2023-11-12 02:18:27,524 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) [2023-11-12 02:18:27,525 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-12 02:18:27,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-12 02:18:27,527 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:27,527 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:27,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:18:27,528 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:27,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:27,529 INFO L85 PathProgramCache]: Analyzing trace with hash -952637313, now seen corresponding path program 1 times [2023-11-12 02:18:27,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:27,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014254050] [2023-11-12 02:18:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:27,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:27,569 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:18:27,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398733858] [2023-11-12 02:18:27,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:27,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:27,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:27,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:27,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:18:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:27,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:18:27,698 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:27,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:18:27,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:27,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:27,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014254050] [2023-11-12 02:18:27,790 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:18:27,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398733858] [2023-11-12 02:18:27,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398733858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:27,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:27,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:18:27,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604688139] [2023-11-12 02:18:27,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:27,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:18:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:18:27,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:18:27,795 INFO L87 Difference]: Start difference. First operand 21 states and 24 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) [2023-11-12 02:18:27,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:27,824 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2023-11-12 02:18:27,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:18:27,825 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 [2023-11-12 02:18:27,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:27,826 INFO L225 Difference]: With dead ends: 26 [2023-11-12 02:18:27,827 INFO L226 Difference]: Without dead ends: 22 [2023-11-12 02:18:27,827 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 [2023-11-12 02:18:27,829 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:27,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 54 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:18:27,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-12 02:18:27,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-12 02:18:27,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2023-11-12 02:18:27,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-11-12 02:18:27,837 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 22 [2023-11-12 02:18:27,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:27,839 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-11-12 02:18:27,839 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) [2023-11-12 02:18:27,840 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-12 02:18:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-12 02:18:27,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:27,841 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:27,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:28,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:28,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:28,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:28,049 INFO L85 PathProgramCache]: Analyzing trace with hash -603190335, now seen corresponding path program 1 times [2023-11-12 02:18:28,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:28,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602463644] [2023-11-12 02:18:28,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:28,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:28,098 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:18:28,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1248011786] [2023-11-12 02:18:28,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:28,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:28,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:28,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:28,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:18:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:28,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:18:28,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:28,261 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:28,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:28,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:28,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602463644] [2023-11-12 02:18:28,262 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:18:28,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248011786] [2023-11-12 02:18:28,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248011786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:28,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:28,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:18:28,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83545233] [2023-11-12 02:18:28,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:28,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:18:28,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:28,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:18:28,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:18:28,265 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:18:28,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:28,351 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2023-11-12 02:18:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:18:28,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-11-12 02:18:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:28,352 INFO L225 Difference]: With dead ends: 41 [2023-11-12 02:18:28,353 INFO L226 Difference]: Without dead ends: 25 [2023-11-12 02:18:28,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:28,355 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 8 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:28,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 62 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-11-12 02:18:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2023-11-12 02:18:28,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 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) [2023-11-12 02:18:28,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2023-11-12 02:18:28,362 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 24 [2023-11-12 02:18:28,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:28,363 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2023-11-12 02:18:28,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:18:28,363 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2023-11-12 02:18:28,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-12 02:18:28,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:28,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:18:28,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:28,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:28,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:28,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:28,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1366149955, now seen corresponding path program 1 times [2023-11-12 02:18:28,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:28,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122841687] [2023-11-12 02:18:28,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:28,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:28,623 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:18:28,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2039776936] [2023-11-12 02:18:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:28,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:28,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:28,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:28,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:18:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:18:28,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 45 conjunts are in the unsatisfiable core [2023-11-12 02:18:28,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:28,868 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 [2023-11-12 02:18:28,972 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 [2023-11-12 02:18:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:18:29,744 INFO L322 Elim1Store]: treesize reduction 100, result has 13.0 percent of original size [2023-11-12 02:18:29,745 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 [2023-11-12 02:18:30,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:30,044 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:41,212 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse11 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (let ((.cse7 (* .cse11 4)) (.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((v_z_1 Int)) (let ((.cse10 (+ .cse11 v_z_1))) (or (forall ((v_y_1 Int)) (let ((.cse0 (* 4294967295 v_z_1)) (.cse1 (* v_y_1 4294967296))) (let ((.cse2 (+ .cse0 .cse1))) (or (< c_~ARR_SIZE~0 (+ .cse0 .cse1 1)) (< .cse2 0) (= (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse9 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse8 .cse9 (+ (* .cse2 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse9))))))) (let ((.cse4 (let ((.cse5 (select .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse6 (+ (* v_z_1 4) (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7))) (store .cse5 .cse6 (+ (* .cse2 |c_ULTIMATE.start_main_~num~0#1|) (select .cse5 .cse6)))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse3 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse4) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse4 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))) 0))))) (< v_z_1 0) (< .cse10 2147483648) (< 4294967295 .cse10)))) (forall ((v_z_1 Int)) (or (< (+ .cse11 v_z_1) 6442450944) (forall ((v_y_1 Int)) (let ((.cse12 (* 4294967295 v_z_1)) (.cse13 (* v_y_1 4294967296))) (let ((.cse14 (+ .cse12 .cse13))) (or (< c_~ARR_SIZE~0 (+ .cse12 .cse13 1)) (< .cse14 0) (= (let ((.cse15 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse19 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse8 .cse19 (+ (* .cse14 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse19))))))) (let ((.cse16 (let ((.cse17 (select .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse18 (+ (* v_z_1 4) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 (- 34359738368)))) (store .cse17 .cse18 (+ (* .cse14 |c_ULTIMATE.start_main_~num~0#1|) (select .cse17 .cse18)))))) (+ (select (select (store .cse15 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse16) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse16 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|))) 0))))) (< 4294967295 v_z_1))) (forall ((v_z_3 Int)) (let ((.cse20 (+ .cse11 v_z_3))) (or (< .cse20 4294967296) (< 4294967295 v_z_3) (< 6442450943 .cse20) (forall ((v_y_3 Int)) (let ((.cse27 (* 4294967295 v_z_3)) (.cse28 (* v_y_3 4294967296))) (let ((.cse25 (+ .cse27 .cse28))) (or (= (let ((.cse22 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse26 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse8 .cse26 (+ (* .cse25 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse26))))))) (let ((.cse21 (let ((.cse23 (select .cse22 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse24 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 (* v_z_3 4)))) (store .cse23 .cse24 (+ (select .cse23 .cse24) (* .cse25 |c_ULTIMATE.start_main_~num~0#1|)))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse21 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse22 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse21) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0) (< c_~ARR_SIZE~0 (+ .cse27 .cse28 1)) (< .cse25 0)))))))) (forall ((v_z_1 Int)) (let ((.cse41 (+ .cse11 v_z_1))) (or (forall ((v_y_1 Int)) (let ((.cse29 (* 4294967295 v_z_1)) (.cse30 (* v_y_1 4294967296))) (let ((.cse31 (+ .cse29 .cse30))) (let ((.cse32 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse40 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse8 .cse40 (+ (* .cse31 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse40))))))) (let ((.cse36 (* .cse31 |c_ULTIMATE.start_main_~num~0#1|)) (.cse34 (select .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse37 (* v_z_1 4))) (or (< c_~ARR_SIZE~0 (+ .cse29 .cse30 1)) (< .cse31 0) (= (let ((.cse33 (let ((.cse35 (+ .cse37 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 (- 34359738368)))) (store .cse34 .cse35 (+ .cse36 (select .cse34 .cse35)))))) (+ (select (select (store .cse32 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse33) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse33 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|)) 0) (= (let ((.cse38 (let ((.cse39 (+ .cse37 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7))) (store .cse34 .cse39 (+ .cse36 (select .cse34 .cse39)))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse32 |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|) (select .cse38 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) 0))))))) (< v_z_1 0) (< .cse41 2147483648) (< 4294967295 .cse41)))) (forall ((v_z_3 Int)) (or (forall ((v_y_3 Int)) (let ((.cse42 (* 4294967295 v_z_3)) (.cse43 (* v_y_3 4294967296))) (let ((.cse44 (+ .cse42 .cse43))) (or (< c_~ARR_SIZE~0 (+ .cse42 .cse43 1)) (< .cse44 0) (= 0 (let ((.cse45 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse49 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse8 .cse49 (+ (* .cse44 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse49))))))) (let ((.cse46 (let ((.cse47 (select .cse45 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse48 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 (* v_z_3 4)))) (store .cse47 .cse48 (+ (select .cse47 .cse48) (* .cse44 |c_ULTIMATE.start_main_~num~0#1|)))))) (+ (select (select (store .cse45 |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|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse46 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))))))) (< 2147483647 (+ .cse11 v_z_3)) (< v_z_3 0))) (forall ((v_z_3 Int)) (or (forall ((v_y_3 Int)) (let ((.cse56 (* 4294967295 v_z_3)) (.cse57 (* v_y_3 4294967296))) (let ((.cse58 (+ .cse56 .cse57))) (let ((.cse51 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse61 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse8 .cse61 (+ (* .cse58 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse61))))))) (let ((.cse52 (select .cse51 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse54 (* .cse58 |c_ULTIMATE.start_main_~num~0#1|)) (.cse55 (* v_z_3 4))) (or (= (let ((.cse50 (let ((.cse53 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 .cse55))) (store .cse52 .cse53 (+ (select .cse52 .cse53) .cse54))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse50 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse51 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse50) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< c_~ARR_SIZE~0 (+ .cse56 .cse57 1)) (< .cse58 0) (= 0 (let ((.cse59 (let ((.cse60 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 .cse55))) (store .cse52 .cse60 (+ (select .cse52 .cse60) .cse54))))) (+ (select (select (store .cse51 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse59) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse59 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))))))) (< 2147483647 (+ .cse11 v_z_3)) (< v_z_3 0))) (forall ((v_z_3 Int)) (let ((.cse62 (+ .cse11 v_z_3))) (or (< .cse62 4294967296) (< 4294967295 v_z_3) (forall ((v_y_3 Int)) (let ((.cse69 (* 4294967295 v_z_3)) (.cse70 (* v_y_3 4294967296))) (let ((.cse71 (+ .cse69 .cse70))) (let ((.cse64 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse74 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_3) (* 17179869184 v_y_3)))) (store .cse8 .cse74 (+ (* .cse71 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse74))))))) (let ((.cse65 (select .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse67 (* .cse71 |c_ULTIMATE.start_main_~num~0#1|)) (.cse68 (* v_z_3 4))) (or (= (let ((.cse63 (let ((.cse66 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 .cse68))) (store .cse65 .cse66 (+ (select .cse65 .cse66) .cse67))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse63 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select (select (store .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse63) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) 0) (< c_~ARR_SIZE~0 (+ .cse69 .cse70 1)) (< .cse71 0) (= 0 (let ((.cse72 (let ((.cse73 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 .cse68))) (store .cse65 .cse73 (+ (select .cse65 .cse73) .cse67))))) (+ (select (select (store .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse72) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse72 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))))))) (< 6442450943 .cse62)))) (forall ((v_z_1 Int)) (or (forall ((v_y_1 Int)) (let ((.cse75 (* 4294967295 v_z_1)) (.cse76 (* v_y_1 4294967296))) (let ((.cse77 (+ .cse75 .cse76))) (let ((.cse78 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse86 (+ (* 17179869180 v_z_1) (* 17179869184 v_y_1) |c_ULTIMATE.start_main_~#array1~0#1.offset|))) (store .cse8 .cse86 (+ (* .cse77 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse8 .cse86))))))) (let ((.cse82 (* .cse77 |c_ULTIMATE.start_main_~num~0#1|)) (.cse80 (select .cse78 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse83 (* v_z_1 4))) (or (< c_~ARR_SIZE~0 (+ .cse75 .cse76 1)) (< .cse77 0) (= (let ((.cse79 (let ((.cse81 (+ .cse83 |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7 (- 34359738368)))) (store .cse80 .cse81 (+ .cse82 (select .cse80 .cse81)))))) (+ (select (select (store .cse78 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse79) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse79 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1|)) 0) (= (let ((.cse84 (let ((.cse85 (+ .cse83 (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse7))) (store .cse80 .cse85 (+ .cse82 (select .cse80 .cse85)))))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select (select (store .cse78 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse84) |c_ULTIMATE.start_main_~#array1~0#1.base|) |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse84 |c_ULTIMATE.start_main_~#array2~0#1.offset|))) 0))))))) (< (+ .cse11 v_z_1) 6442450944) (< 4294967295 v_z_1)))))) is different from true [2023-11-12 02:18:41,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:41,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122841687] [2023-11-12 02:18:41,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:18:41,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039776936] [2023-11-12 02:18:41,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039776936] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:18:41,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:18:41,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2023-11-12 02:18:41,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519077278] [2023-11-12 02:18:41,223 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:18:41,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-12 02:18:41,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:41,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-12 02:18:41,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=342, Unknown=1, NotChecked=38, Total=462 [2023-11-12 02:18:41,228 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:18:42,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:42,344 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2023-11-12 02:18:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-12 02:18:42,345 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-11-12 02:18:42,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:42,346 INFO L225 Difference]: With dead ends: 56 [2023-11-12 02:18:42,346 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 02:18:42,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=189, Invalid=744, Unknown=1, NotChecked=58, Total=992 [2023-11-12 02:18:42,348 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 82 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:42,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 100 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-12 02:18:42,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 02:18:42,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2023-11-12 02:18:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 33 states have internal predecessors, (38), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:18:42,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-11-12 02:18:42,362 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 26 [2023-11-12 02:18:42,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:42,362 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-11-12 02:18:42,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 14 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:18:42,363 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-11-12 02:18:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:18:42,364 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:42,364 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] [2023-11-12 02:18:42,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:42,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-11-12 02:18:42,570 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:42,571 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:42,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1336652411, now seen corresponding path program 2 times [2023-11-12 02:18:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:42,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498577361] [2023-11-12 02:18:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:42,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:42,605 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:18:42,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977977804] [2023-11-12 02:18:42,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:18:42,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:42,612 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:42,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:18:42,703 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:18:42,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:18:42,704 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:18:42,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:42,778 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:42,840 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:18:42,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:42,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498577361] [2023-11-12 02:18:42,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:18:42,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977977804] [2023-11-12 02:18:42,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977977804] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:18:42,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:18:42,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-12 02:18:42,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769834839] [2023-11-12 02:18:42,842 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:18:42,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:18:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:18:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:18:42,844 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:18:42,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:42,979 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2023-11-12 02:18:42,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:18:42,980 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-11-12 02:18:42,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:42,983 INFO L225 Difference]: With dead ends: 55 [2023-11-12 02:18:42,983 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 02:18:42,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:18:42,985 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 31 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:42,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 80 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 02:18:42,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 29. [2023-11-12 02:18:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:18:42,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-11-12 02:18:42,999 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 28 [2023-11-12 02:18:42,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:43,000 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-11-12 02:18:43,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:18:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-11-12 02:18:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:18:43,003 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:43,003 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] [2023-11-12 02:18:43,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:43,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:43,209 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:43,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:43,210 INFO L85 PathProgramCache]: Analyzing trace with hash -178408891, now seen corresponding path program 3 times [2023-11-12 02:18:43,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:43,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660621724] [2023-11-12 02:18:43,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:43,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:43,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:18:43,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [77872007] [2023-11-12 02:18:43,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 02:18:43,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:43,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:43,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:43,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:18:43,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-12 02:18:43,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:18:43,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:18:43,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:43,447 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:43,447 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:43,509 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:18:43,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:18:43,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660621724] [2023-11-12 02:18:43,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:18:43,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77872007] [2023-11-12 02:18:43,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77872007] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:18:43,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:18:43,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-11-12 02:18:43,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450873372] [2023-11-12 02:18:43,515 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:18:43,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:18:43,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:18:43,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:18:43,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:18:43,517 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:18:43,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:18:43,643 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2023-11-12 02:18:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:18:43,644 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2023-11-12 02:18:43,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:18:43,645 INFO L225 Difference]: With dead ends: 36 [2023-11-12 02:18:43,645 INFO L226 Difference]: Without dead ends: 32 [2023-11-12 02:18:43,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:18:43,646 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 33 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:18:43,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 58 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:18:43,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-12 02:18:43,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-11-12 02:18:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:18:43,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-11-12 02:18:43,655 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 28 [2023-11-12 02:18:43,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:18:43,655 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-11-12 02:18:43,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:18:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-12 02:18:43,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-12 02:18:43,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:18:43,657 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] [2023-11-12 02:18:43,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:18:43,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:18:43,863 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:18:43,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:18:43,863 INFO L85 PathProgramCache]: Analyzing trace with hash 400980999, now seen corresponding path program 4 times [2023-11-12 02:18:43,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:18:43,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891390142] [2023-11-12 02:18:43,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:18:43,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:18:43,884 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:18:43,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969825575] [2023-11-12 02:18:43,885 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-12 02:18:43,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:18:43,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:18:43,886 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:18:43,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:18:44,093 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-12 02:18:44,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:18:44,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-12 02:18:44,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:44,172 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 [2023-11-12 02:18:44,231 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 [2023-11-12 02:18:44,373 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 [2023-11-12 02:18:45,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:18:45,410 INFO L322 Elim1Store]: treesize reduction 353, result has 14.1 percent of original size [2023-11-12 02:18:45,410 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 [2023-11-12 02:18:45,607 INFO L322 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2023-11-12 02:18:45,607 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 [2023-11-12 02:18:45,726 INFO L322 Elim1Store]: treesize reduction 94, result has 1.1 percent of original size [2023-11-12 02:18:45,726 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 [2023-11-12 02:18:45,925 INFO L322 Elim1Store]: treesize reduction 95, result has 22.8 percent of original size [2023-11-12 02:18:45,926 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 [2023-11-12 02:18:46,115 INFO L322 Elim1Store]: treesize reduction 75, result has 27.2 percent of original size [2023-11-12 02:18:46,115 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 [2023-11-12 02:18:46,461 INFO L322 Elim1Store]: treesize reduction 77, result has 18.9 percent of original size [2023-11-12 02:18:46,464 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 116 [2023-11-12 02:18:48,827 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:18:48,829 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 60 case distinctions, treesize of input 161 treesize of output 305 [2023-11-12 02:18:53,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:53,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:19:08,803 WARN L876 $PredicateComparison]: unable to prove that (or (< c_~ARR_SIZE~0 2) (let ((.cse13 (mod (+ c_~ARR_SIZE~0 4294967295) 4294967296))) (let ((.cse3 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse1 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse8 (* .cse13 4)) (.cse9 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|))) (and (forall ((v_z_7 Int)) (or (forall ((v_y_7 Int)) (let ((.cse11 (* v_y_7 4294967296)) (.cse12 (* 4294967295 v_z_7))) (let ((.cse7 (+ .cse11 .cse12))) (or (= 0 (let ((.cse4 (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_7) (* 17179869184 v_y_7)))) (store .cse9 .cse10 (+ (* .cse7 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse10))))))) (let ((.cse2 (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse6 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (- 34359738368) (* v_z_7 4)))) (store .cse5 .cse6 (+ (select .cse5 .cse6) (* .cse7 |c_ULTIMATE.start_main_~num~0#1|)))))) (let ((.cse0 (select (store .cse4 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse2) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse0 .cse1) (select .cse2 .cse3) |c_ULTIMATE.start_main_~sum~0#1| (select .cse0 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse2 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))) (< .cse7 0) (< c_~ARR_SIZE~0 (+ .cse11 .cse12 1)))))) (< (+ .cse13 v_z_7) 6442450944) (< 4294967295 v_z_7))) (forall ((v_z_7 Int)) (or (< (+ .cse13 v_z_7) 6442450944) (forall ((v_y_7 Int)) (let ((.cse25 (* v_y_7 4294967296)) (.cse26 (* 4294967295 v_z_7))) (let ((.cse24 (+ .cse25 .cse26))) (let ((.cse16 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse27 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_7) (* 17179869184 v_y_7)))) (store .cse9 .cse27 (+ (* .cse24 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse27))))))) (let ((.cse17 (select .cse16 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse19 (* .cse24 |c_ULTIMATE.start_main_~num~0#1|)) (.cse20 (* v_z_7 4))) (or (= 0 (let ((.cse15 (let ((.cse18 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (- 34359738368) .cse20))) (store .cse17 .cse18 (+ (select .cse17 .cse18) .cse19))))) (let ((.cse14 (select (store .cse16 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse15) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse14 .cse1) (select .cse15 .cse3) |c_ULTIMATE.start_main_~sum~0#1| (select .cse14 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse15 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) (= (let ((.cse21 (let ((.cse23 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 .cse20))) (store .cse17 .cse23 (+ (select .cse17 .cse23) .cse19))))) (let ((.cse22 (select (store .cse16 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse21) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse21 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse21 .cse3) (select .cse22 .cse1) |c_ULTIMATE.start_main_~sum~0#1| (select .cse22 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0) (< .cse24 0) (< c_~ARR_SIZE~0 (+ .cse25 .cse26 1)))))))) (< 4294967295 v_z_7))) (forall ((v_z_7 Int)) (let ((.cse28 (+ .cse13 v_z_7))) (or (< 4294967295 .cse28) (< v_z_7 0) (forall ((v_y_7 Int)) (let ((.cse36 (* v_y_7 4294967296)) (.cse37 (* 4294967295 v_z_7))) (let ((.cse34 (+ .cse36 .cse37))) (or (= (let ((.cse31 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse35 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_7) (* 17179869184 v_y_7)))) (store .cse9 .cse35 (+ (* .cse34 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse35))))))) (let ((.cse29 (let ((.cse32 (select .cse31 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse33 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (* v_z_7 4)))) (store .cse32 .cse33 (+ (select .cse32 .cse33) (* .cse34 |c_ULTIMATE.start_main_~num~0#1|)))))) (let ((.cse30 (select (store .cse31 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse29) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse29 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse29 .cse3) (select .cse30 .cse1) |c_ULTIMATE.start_main_~sum~0#1| (select .cse30 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0) (< .cse34 0) (< c_~ARR_SIZE~0 (+ .cse36 .cse37 1)))))) (< .cse28 2147483648)))) (forall ((v_z_9 Int)) (or (< v_z_9 0) (< 2147483647 (+ .cse13 v_z_9)) (forall ((v_y_9 Int)) (let ((.cse49 (* v_y_9 4294967296)) (.cse50 (* 4294967295 v_z_9))) (let ((.cse48 (+ .cse49 .cse50))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse51 (+ (* 17179869184 v_y_9) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_9)))) (store .cse9 .cse51 (+ (select .cse9 .cse51) (* .cse48 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse41 (select .cse40 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse43 (* .cse48 |c_ULTIMATE.start_main_~num~0#1|)) (.cse44 (* v_z_9 4))) (or (= (let ((.cse38 (let ((.cse42 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse44 .cse8))) (store .cse41 .cse42 (+ (select .cse41 .cse42) .cse43))))) (let ((.cse39 (select (store .cse40 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse38) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse38 .cse3) (select .cse39 .cse1) (select .cse38 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse39 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0) (= (let ((.cse46 (let ((.cse47 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse44 .cse8))) (store .cse41 .cse47 (+ (select .cse41 .cse47) .cse43))))) (let ((.cse45 (select (store .cse40 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse46) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse45 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse46 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse45 .cse1) (select .cse46 .cse3)))) 0) (< .cse48 0) (< c_~ARR_SIZE~0 (+ .cse49 1 .cse50)))))))))) (forall ((v_z_9 Int)) (let ((.cse52 (+ .cse13 v_z_9))) (or (< .cse52 4294967296) (< 6442450943 .cse52) (< 4294967295 v_z_9) (forall ((v_y_9 Int)) (let ((.cse60 (* v_y_9 4294967296)) (.cse61 (* 4294967295 v_z_9))) (let ((.cse58 (+ .cse60 .cse61))) (or (= (let ((.cse55 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse59 (+ (* 17179869184 v_y_9) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_9)))) (store .cse9 .cse59 (+ (select .cse9 .cse59) (* .cse58 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse53 (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse57 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| (* v_z_9 4) .cse8))) (store .cse56 .cse57 (+ (select .cse56 .cse57) (* .cse58 |c_ULTIMATE.start_main_~num~0#1|)))))) (let ((.cse54 (select (store .cse55 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse53) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse53 .cse3) (select .cse54 .cse1) (select .cse53 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse54 |c_ULTIMATE.start_main_~#array1~0#1.offset|))))) 0) (< .cse58 0) (< c_~ARR_SIZE~0 (+ .cse60 1 .cse61))))))))) (forall ((v_z_9 Int)) (or (< v_z_9 0) (< 2147483647 (+ .cse13 v_z_9)) (forall ((v_y_9 Int)) (let ((.cse69 (* v_y_9 4294967296)) (.cse70 (* 4294967295 v_z_9))) (let ((.cse67 (+ .cse69 .cse70))) (or (= (let ((.cse64 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse68 (+ (* 17179869184 v_y_9) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_9)))) (store .cse9 .cse68 (+ (select .cse9 .cse68) (* .cse67 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse63 (let ((.cse65 (select .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse66 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| (* v_z_9 4) .cse8))) (store .cse65 .cse66 (+ (select .cse65 .cse66) (* .cse67 |c_ULTIMATE.start_main_~num~0#1|)))))) (let ((.cse62 (select (store .cse64 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse63) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse62 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse63 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse62 .cse1) (select .cse63 .cse3))))) 0) (< .cse67 0) (< c_~ARR_SIZE~0 (+ .cse69 1 .cse70)))))))) (forall ((v_z_9 Int)) (let ((.cse71 (+ .cse13 v_z_9))) (or (< .cse71 4294967296) (forall ((v_y_9 Int)) (let ((.cse83 (* v_y_9 4294967296)) (.cse84 (* 4294967295 v_z_9))) (let ((.cse82 (+ .cse83 .cse84))) (let ((.cse74 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse85 (+ (* 17179869184 v_y_9) |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_9)))) (store .cse9 .cse85 (+ (select .cse9 .cse85) (* .cse82 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|))))))) (let ((.cse75 (select .cse74 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse77 (* .cse82 |c_ULTIMATE.start_main_~num~0#1|)) (.cse78 (* v_z_9 4))) (or (= (let ((.cse72 (let ((.cse76 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse78 .cse8))) (store .cse75 .cse76 (+ (select .cse75 .cse76) .cse77))))) (let ((.cse73 (select (store .cse74 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse72) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse72 .cse3) (select .cse73 .cse1) (select .cse72 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse73 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0) (= (let ((.cse80 (let ((.cse81 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse78 .cse8))) (store .cse75 .cse81 (+ (select .cse75 .cse81) .cse77))))) (let ((.cse79 (select (store .cse74 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse80) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ |c_ULTIMATE.start_main_~sum~0#1| (select .cse79 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse80 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse79 .cse1) (select .cse80 .cse3)))) 0) (< .cse82 0) (< c_~ARR_SIZE~0 (+ .cse83 1 .cse84)))))))) (< 6442450943 .cse71) (< 4294967295 v_z_9)))) (forall ((v_z_7 Int)) (let ((.cse86 (+ .cse13 v_z_7))) (or (< 4294967295 .cse86) (< v_z_7 0) (forall ((v_y_7 Int)) (let ((.cse98 (* v_y_7 4294967296)) (.cse99 (* 4294967295 v_z_7))) (let ((.cse97 (+ .cse98 .cse99))) (let ((.cse89 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (let ((.cse100 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| (* 17179869180 v_z_7) (* 17179869184 v_y_7)))) (store .cse9 .cse100 (+ (* .cse97 |c_ULTIMATE.start_main_~num~0#1| |c_ULTIMATE.start_main_~num~0#1|) (select .cse9 .cse100))))))) (let ((.cse90 (select .cse89 |c_ULTIMATE.start_main_~#array2~0#1.base|)) (.cse92 (* .cse97 |c_ULTIMATE.start_main_~num~0#1|)) (.cse93 (* v_z_7 4))) (or (= 0 (let ((.cse88 (let ((.cse91 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 (- 34359738368) .cse93))) (store .cse90 .cse91 (+ (select .cse90 .cse91) .cse92))))) (let ((.cse87 (select (store .cse89 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse88) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse87 .cse1) (select .cse88 .cse3) |c_ULTIMATE.start_main_~sum~0#1| (select .cse87 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse88 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))) (= (let ((.cse94 (let ((.cse96 (+ (- 17179869184) |c_ULTIMATE.start_main_~#array2~0#1.offset| .cse8 .cse93))) (store .cse90 .cse96 (+ (select .cse90 .cse96) .cse92))))) (let ((.cse95 (select (store .cse89 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse94) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse94 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse94 .cse3) (select .cse95 .cse1) |c_ULTIMATE.start_main_~sum~0#1| (select .cse95 |c_ULTIMATE.start_main_~#array1~0#1.offset|)))) 0) (< .cse97 0) (< c_~ARR_SIZE~0 (+ .cse98 .cse99 1)))))))) (< .cse86 2147483648)))))))) is different from true [2023-11-12 02:19:08,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:08,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891390142] [2023-11-12 02:19:08,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:19:08,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969825575] [2023-11-12 02:19:08,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969825575] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:19:08,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:19:08,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2023-11-12 02:19:08,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207005666] [2023-11-12 02:19:08,813 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 02:19:08,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-12 02:19:08,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:08,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-12 02:19:08,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=636, Unknown=1, NotChecked=52, Total=812 [2023-11-12 02:19:08,815 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 22 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 19 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:19:10,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:10,339 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2023-11-12 02:19:10,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-12 02:19:10,340 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 19 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2023-11-12 02:19:10,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:10,340 INFO L225 Difference]: With dead ends: 55 [2023-11-12 02:19:10,341 INFO L226 Difference]: Without dead ends: 51 [2023-11-12 02:19:10,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=203, Invalid=1060, Unknown=1, NotChecked=68, Total=1332 [2023-11-12 02:19:10,342 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 63 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:10,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 130 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 02:19:10,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-12 02:19:10,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2023-11-12 02:19:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-12 02:19:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2023-11-12 02:19:10,355 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 30 [2023-11-12 02:19:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:10,355 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2023-11-12 02:19:10,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 19 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:19:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2023-11-12 02:19:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 02:19:10,357 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:10,357 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:10,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:10,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:10,558 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:10,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:10,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1151083191, now seen corresponding path program 5 times [2023-11-12 02:19:10,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:10,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488893981] [2023-11-12 02:19:10,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:10,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:10,591 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:19:10,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1902990807] [2023-11-12 02:19:10,600 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-12 02:19:10,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:10,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:10,603 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:10,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:19:10,685 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-11-12 02:19:10,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:19:10,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:19:10,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:10,781 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:10,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:19:10,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:19:10,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488893981] [2023-11-12 02:19:10,866 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:19:10,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902990807] [2023-11-12 02:19:10,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902990807] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:19:10,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:19:10,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-11-12 02:19:10,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201355698] [2023-11-12 02:19:10,867 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:19:10,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:19:10,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:10,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:19:10,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:19:10,870 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:19:11,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:11,176 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2023-11-12 02:19:11,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-12 02:19:11,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-12 02:19:11,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:11,178 INFO L225 Difference]: With dead ends: 79 [2023-11-12 02:19:11,178 INFO L226 Difference]: Without dead ends: 67 [2023-11-12 02:19:11,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-12 02:19:11,180 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 71 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:11,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 88 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:19:11,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-11-12 02:19:11,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2023-11-12 02:19:11,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.108695652173913) internal successors, (51), 46 states have internal predecessors, (51), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 02:19:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2023-11-12 02:19:11,199 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 32 [2023-11-12 02:19:11,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:11,199 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2023-11-12 02:19:11,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:19:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2023-11-12 02:19:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-12 02:19:11,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:11,201 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:11,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:11,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:11,407 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:11,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:11,407 INFO L85 PathProgramCache]: Analyzing trace with hash -475590135, now seen corresponding path program 6 times [2023-11-12 02:19:11,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:11,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049168841] [2023-11-12 02:19:11,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:11,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:11,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:19:11,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606962726] [2023-11-12 02:19:11,428 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-12 02:19:11,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:11,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:11,429 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:11,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:19:11,600 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-11-12 02:19:11,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:19:11,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:19:11,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:11,691 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:11,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:19:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:19:11,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049168841] [2023-11-12 02:19:11,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 02:19:11,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606962726] [2023-11-12 02:19:11,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606962726] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:19:11,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 02:19:11,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2023-11-12 02:19:11,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042423809] [2023-11-12 02:19:11,778 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 02:19:11,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:19:11,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:11,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:19:11,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:19:11,780 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:19:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:19:12,157 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2023-11-12 02:19:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-12 02:19:12,157 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2023-11-12 02:19:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:19:12,158 INFO L225 Difference]: With dead ends: 66 [2023-11-12 02:19:12,159 INFO L226 Difference]: Without dead ends: 62 [2023-11-12 02:19:12,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:19:12,160 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 48 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:19:12,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 91 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:19:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-12 02:19:12,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2023-11-12 02:19:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 02:19:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2023-11-12 02:19:12,180 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 32 [2023-11-12 02:19:12,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:19:12,180 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2023-11-12 02:19:12,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:19:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2023-11-12 02:19:12,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:19:12,182 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:19:12,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:12,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:19:12,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:12,389 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:19:12,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:12,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1722352949, now seen corresponding path program 7 times [2023-11-12 02:19:12,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:12,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716065767] [2023-11-12 02:19:12,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:12,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:12,409 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 02:19:12,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517497292] [2023-11-12 02:19:12,409 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-12 02:19:12,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:19:12,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:12,411 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:19:12,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_687cb52d-50cf-489c-9293-53fb12d860d6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:19:12,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:12,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 65 conjunts are in the unsatisfiable core [2023-11-12 02:19:12,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:19:12,732 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 [2023-11-12 02:19:12,777 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 [2023-11-12 02:19:12,894 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 [2023-11-12 02:19:13,041 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 56 treesize of output 55 [2023-11-12 02:19:13,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:19:14,509 INFO L322 Elim1Store]: treesize reduction 525, result has 14.8 percent of original size [2023-11-12 02:19:14,509 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 15 select indices, 15 select index equivalence classes, 9 disjoint index pairs (out of 105 index pairs), introduced 16 new quantified variables, introduced 69 case distinctions, treesize of input 240 treesize of output 266 [2023-11-12 02:19:14,722 INFO L322 Elim1Store]: treesize reduction 40, result has 46.7 percent of original size [2023-11-12 02:19:14,722 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 219 treesize of output 216 [2023-11-12 02:19:14,884 INFO L322 Elim1Store]: treesize reduction 141, result has 0.7 percent of original size [2023-11-12 02:19:14,884 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 165 [2023-11-12 02:19:15,103 INFO L322 Elim1Store]: treesize reduction 139, result has 24.5 percent of original size [2023-11-12 02:19:15,104 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 90 [2023-11-12 02:19:15,383 INFO L322 Elim1Store]: treesize reduction 109, result has 29.2 percent of original size [2023-11-12 02:19:15,384 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 71 [2023-11-12 02:19:15,802 INFO L322 Elim1Store]: treesize reduction 109, result has 29.2 percent of original size [2023-11-12 02:19:15,803 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 71 [2023-11-12 02:19:17,952 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 134 treesize of output 62 [2023-11-12 02:19:18,033 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:18,033 INFO L327 TraceCheckSpWp]: Computing backward predicates...