./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c67c252daff5c7ee06d488793b0dcb7582651cc84d24dd97a82d484d18291433 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:49:01,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:49:01,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:49:01,303 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:49:01,304 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:49:01,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:49:01,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:49:01,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:49:01,347 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:49:01,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:49:01,353 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:49:01,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:49:01,354 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:49:01,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:49:01,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:49:01,356 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:49:01,357 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:49:01,357 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:49:01,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:49:01,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:49:01,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:49:01,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:49:01,360 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:49:01,360 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:49:01,361 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:49:01,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:49:01,362 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:49:01,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:49:01,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:49:01,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:49:01,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:01,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:49:01,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:49:01,366 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:49:01,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:49:01,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:49:01,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:49:01,367 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:49:01,367 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:49:01,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:49:01,368 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:49:01,368 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_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c67c252daff5c7ee06d488793b0dcb7582651cc84d24dd97a82d484d18291433 [2023-11-19 07:49:01,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:49:01,660 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:49:01,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:49:01,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:49:01,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:49:01,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c [2023-11-19 07:49:04,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:49:05,176 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:49:05,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1-u.c [2023-11-19 07:49:05,189 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/data/7044cbac3/ea20e8a5282d43aa8ce3b8ad3357ad12/FLAG70599e87d [2023-11-19 07:49:05,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/data/7044cbac3/ea20e8a5282d43aa8ce3b8ad3357ad12 [2023-11-19 07:49:05,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:49:05,218 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:49:05,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:05,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:49:05,232 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:49:05,235 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631fae1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05, skipping insertion in model container [2023-11-19 07:49:05,237 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,268 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:49:05,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:05,495 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:49:05,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:49:05,542 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:49:05,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05 WrapperNode [2023-11-19 07:49:05,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:49:05,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:05,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:49:05,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:49:05,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,598 INFO L138 Inliner]: procedures = 16, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-11-19 07:49:05,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:49:05,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:49:05,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:49:05,600 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:49:05,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,622 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,629 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,633 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,634 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:49:05,638 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:49:05,638 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:49:05,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:49:05,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (1/1) ... [2023-11-19 07:49:05,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:49:05,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:05,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:49:05,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:49:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2023-11-19 07:49:05,729 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2023-11-19 07:49:05,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:49:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:49:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:49:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:49:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:49:05,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:49:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:49:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:49:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:49:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:49:05,818 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:49:05,820 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:49:06,174 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:49:06,192 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:49:06,195 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:49:06,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:06 BoogieIcfgContainer [2023-11-19 07:49:06,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:49:06,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:49:06,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:49:06,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:49:06,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:49:05" (1/3) ... [2023-11-19 07:49:06,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b46bfa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:06, skipping insertion in model container [2023-11-19 07:49:06,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:49:05" (2/3) ... [2023-11-19 07:49:06,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b46bfa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:49:06, skipping insertion in model container [2023-11-19 07:49:06,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:49:06" (3/3) ... [2023-11-19 07:49:06,235 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1-u.c [2023-11-19 07:49:06,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:49:06,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-19 07:49:06,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:49:06,312 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;@2ae5d6ab, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:49:06,312 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-19 07:49:06,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 67 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 61 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-19 07:49:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:49:06,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:06,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:49:06,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-19 07:49:06,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:06,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2014108657, now seen corresponding path program 1 times [2023-11-19 07:49:06,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:06,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109767636] [2023-11-19 07:49:06,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:06,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:06,571 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:06,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2112662370] [2023-11-19 07:49:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:06,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:06,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:06,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:06,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:49:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:06,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-19 07:49:06,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:06,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:06,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:06,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:06,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:06,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:06,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 24 [2023-11-19 07:49:07,025 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:07,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2023-11-19 07:49:07,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 24 [2023-11-19 07:49:07,125 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:07,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-11-19 07:49:07,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,196 INFO L349 Elim1Store]: treesize reduction 41, result has 2.4 percent of original size [2023-11-19 07:49:07,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 24 [2023-11-19 07:49:07,263 INFO L349 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2023-11-19 07:49:07,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 162 [2023-11-19 07:49:07,416 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:07,417 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:07,421 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:07,430 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:07,431 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:07,432 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:07,433 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:07,437 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:07,444 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:07,446 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:07,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:07,540 INFO L349 Elim1Store]: treesize reduction 32, result has 47.5 percent of original size [2023-11-19 07:49:07,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 167 treesize of output 36 [2023-11-19 07:49:07,589 INFO L349 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2023-11-19 07:49:07,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 194 treesize of output 190 [2023-11-19 07:49:08,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,059 INFO L349 Elim1Store]: treesize reduction 48, result has 37.7 percent of original size [2023-11-19 07:49:08,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 36 [2023-11-19 07:49:08,080 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:08,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 47 [2023-11-19 07:49:08,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,319 INFO L349 Elim1Store]: treesize reduction 48, result has 37.7 percent of original size [2023-11-19 07:49:08,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 167 treesize of output 36 [2023-11-19 07:49:08,339 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:08,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-11-19 07:49:08,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:08,592 INFO L349 Elim1Store]: treesize reduction 123, result has 19.1 percent of original size [2023-11-19 07:49:08,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 359 treesize of output 36 [2023-11-19 07:49:08,639 INFO L349 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2023-11-19 07:49:08,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 252 treesize of output 246 [2023-11-19 07:49:08,987 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:08,998 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:09,004 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:10,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:49:10,749 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:49:10,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:49:10,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109767636] [2023-11-19 07:49:10,750 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:49:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112662370] [2023-11-19 07:49:10,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112662370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:49:10,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:49:10,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:49:10,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2452151] [2023-11-19 07:49:10,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:49:10,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:49:10,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:49:10,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:49:10,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:49:10,799 INFO L87 Difference]: Start difference. First operand has 67 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 61 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:16,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:49:16,293 INFO L93 Difference]: Finished difference Result 161 states and 177 transitions. [2023-11-19 07:49:16,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:49:16,296 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 07:49:16,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:49:16,305 INFO L225 Difference]: With dead ends: 161 [2023-11-19 07:49:16,305 INFO L226 Difference]: Without dead ends: 91 [2023-11-19 07:49:16,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:49:16,312 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 66 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:49:16,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 225 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-19 07:49:16,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-19 07:49:16,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 75. [2023-11-19 07:49:16,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 68 states have internal predecessors, (76), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-19 07:49:16,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 85 transitions. [2023-11-19 07:49:16,369 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 85 transitions. Word has length 6 [2023-11-19 07:49:16,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:49:16,370 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 85 transitions. [2023-11-19 07:49:16,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:49:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 85 transitions. [2023-11-19 07:49:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:49:16,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:49:16,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:49:16,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:49:16,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:49:16,598 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2023-11-19 07:49:16,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:49:16,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1987141110, now seen corresponding path program 1 times [2023-11-19 07:49:16,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:49:16,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179976206] [2023-11-19 07:49:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:16,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:49:16,641 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:49:16,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803392890] [2023-11-19 07:49:16,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:49:16,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:49:16,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:49:16,644 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:49:16,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_10b60a4e-6786-40b6-a8fe-95e1abcf28cd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:49:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:49:16,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 07:49:16,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:49:16,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:16,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:16,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,144 INFO L349 Elim1Store]: treesize reduction 211, result has 29.4 percent of original size [2023-11-19 07:49:17,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1158 treesize of output 414 [2023-11-19 07:49:17,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,388 INFO L224 Elim1Store]: Index analysis took 119 ms [2023-11-19 07:49:17,581 INFO L349 Elim1Store]: treesize reduction 130, result has 17.2 percent of original size [2023-11-19 07:49:17,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 228 treesize of output 281 [2023-11-19 07:49:17,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:49:17,931 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:49:18,231 INFO L349 Elim1Store]: treesize reduction 199, result has 18.4 percent of original size [2023-11-19 07:49:18,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 2425 treesize of output 2498 [2023-11-19 07:49:18,525 INFO L349 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size [2023-11-19 07:49:18,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1312 treesize of output 1294 [2023-11-19 07:49:19,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-19 07:49:19,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-19 07:49:20,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-19 07:49:20,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-19 07:49:20,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:49:20,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 48 [2023-11-19 07:49:20,752 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:49:20,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49 [2023-11-19 07:49:20,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2023-11-19 07:49:49,344 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:49,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:49,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:49,510 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:49:49,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 50 [2023-11-19 07:49:49,607 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2023-11-19 07:49:49,650 INFO L378 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 41 treesize of output 35 [2023-11-19 07:49:49,717 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:49:49,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 50 [2023-11-19 07:49:49,806 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:49,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:49,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2023-11-19 07:49:50,018 INFO L378 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 41 treesize of output 35 [2023-11-19 07:49:50,096 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:50,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:50,169 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:50,179 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:50,200 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:50,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:50,288 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:50,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:50,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:50,409 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:50,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:50,505 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:50,514 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:50,524 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:50,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:50,661 INFO L378 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 41 treesize of output 35 [2023-11-19 07:49:50,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:50,792 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:50,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:50,853 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:50,862 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:50,887 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:50,887 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 25 [2023-11-19 07:49:50,968 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:50,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 42 [2023-11-19 07:49:51,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2023-11-19 07:49:51,112 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-19 07:49:51,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 25 [2023-11-19 07:49:51,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:49:51,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2023-11-19 07:49:51,300 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:49:51,310 WARN L214 Elim1Store]: Array PQE input equivalent to false