./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin-ll.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_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/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_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/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_a9e4a910-d09f-411a-a246-387e2d8b49e9/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 5ace794fa35bd3dd49302fe61957917bbb7565f1b1f34293812fc47531868d51 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:20,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:20,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:46:20,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:20,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:20,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:20,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:20,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:20,895 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:20,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:20,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:20,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:20,897 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:20,898 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:20,899 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:20,899 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:20,900 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:46:20,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:20,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:20,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:20,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:20,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:20,904 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:46:20,905 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:20,906 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:20,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:20,907 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:20,907 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:20,908 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:20,908 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:20,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:20,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:20,910 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:20,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:20,911 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:46:20,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:46:20,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:20,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:20,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:20,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:20,914 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:20,914 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_a9e4a910-d09f-411a-a246-387e2d8b49e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ace794fa35bd3dd49302fe61957917bbb7565f1b1f34293812fc47531868d51 [2023-11-19 07:46:21,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:21,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:21,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:21,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:21,200 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:21,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin-ll.c [2023-11-19 07:46:24,337 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:24,571 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:24,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin-ll.c [2023-11-19 07:46:24,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data/e09c8c3a3/2486f264010140a096b496b073a3bf7f/FLAG4b95c3836 [2023-11-19 07:46:24,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data/e09c8c3a3/2486f264010140a096b496b073a3bf7f [2023-11-19 07:46:24,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:24,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:24,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:24,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:24,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:24,627 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a74e972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24, skipping insertion in model container [2023-11-19 07:46:24,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,659 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:24,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:24,894 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:24,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:24,938 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:24,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24 WrapperNode [2023-11-19 07:46:24,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:24,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:24,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:24,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:24,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,979 INFO L138 Inliner]: procedures = 16, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2023-11-19 07:46:24,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:24,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:24,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:24,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:24,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:24,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:25,001 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:25,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:25,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:25,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:25,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:25,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:25,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:25,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:25,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (1/1) ... [2023-11-19 07:46:25,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:25,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:25,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:25,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:25,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:46:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:25,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:46:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_40_0 [2023-11-19 07:46:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_40_0 [2023-11-19 07:46:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:25,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:46:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:46:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:46:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:25,175 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:25,177 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:25,504 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:25,512 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:25,513 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:46:25,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:25 BoogieIcfgContainer [2023-11-19 07:46:25,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:25,520 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:25,520 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:25,524 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:25,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:24" (1/3) ... [2023-11-19 07:46:25,525 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636b2186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:25, skipping insertion in model container [2023-11-19 07:46:25,525 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:24" (2/3) ... [2023-11-19 07:46:25,526 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@636b2186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:25, skipping insertion in model container [2023-11-19 07:46:25,526 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:25" (3/3) ... [2023-11-19 07:46:25,528 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin-ll.c [2023-11-19 07:46:25,549 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:25,549 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 07:46:25,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:25,617 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;@4157c9a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:25,618 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 07:46:25,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 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 07:46:25,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:46:25,628 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:25,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:25,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 07:46:25,634 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:25,634 INFO L85 PathProgramCache]: Analyzing trace with hash -29049519, now seen corresponding path program 1 times [2023-11-19 07:46:25,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:25,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132094601] [2023-11-19 07:46:25,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:25,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:25,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:25,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132094601] [2023-11-19 07:46:25,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-19 07:46:25,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416057053] [2023-11-19 07:46:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:25,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:46:25,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:25,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:46:25,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:46:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:26,049 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:46:26,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:26,079 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 07:46:26,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:26,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416057053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:26,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:26,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:26,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229606234] [2023-11-19 07:46:26,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:26,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:26,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:26,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:26,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:26,134 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 07:46:26,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:26,174 INFO L93 Difference]: Finished difference Result 114 states and 129 transitions. [2023-11-19 07:46:26,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:26,176 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2023-11-19 07:46:26,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:26,185 INFO L225 Difference]: With dead ends: 114 [2023-11-19 07:46:26,185 INFO L226 Difference]: Without dead ends: 52 [2023-11-19 07:46:26,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:26,193 INFO L413 NwaCegarLoop]: 61 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, 61 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 [2023-11-19 07:46:26,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:46:26,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-19 07:46:26,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-19 07:46:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 31 states have (on average 1.5483870967741935) internal successors, (48), 47 states have internal predecessors, (48), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:46:26,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 54 transitions. [2023-11-19 07:46:26,237 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 54 transitions. Word has length 8 [2023-11-19 07:46:26,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:26,237 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 54 transitions. [2023-11-19 07:46:26,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 07:46:26,238 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 54 transitions. [2023-11-19 07:46:26,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:46:26,238 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:26,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:26,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:46:26,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:46:26,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 07:46:26,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:26,442 INFO L85 PathProgramCache]: Analyzing trace with hash 28208783, now seen corresponding path program 1 times [2023-11-19 07:46:26,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:26,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012556196] [2023-11-19 07:46:26,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:26,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:26,497 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:46:26,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473191530] [2023-11-19 07:46:26,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:26,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:46:26,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:26,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:46:26,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:46:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:26,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-19 07:46:26,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:26,984 INFO L349 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2023-11-19 07:46:26,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 1 [2023-11-19 07:46:27,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 07:46:27,067 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-19 07:46:27,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 322 treesize of output 308 [2023-11-19 07:46:27,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:46:27,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 48 [2023-11-19 07:46:27,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 52 [2023-11-19 07:46:27,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 24 [2023-11-19 07:46:27,953 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 07:46:27,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:27,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:27,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012556196] [2023-11-19 07:46:27,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:46:27,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473191530] [2023-11-19 07:46:27,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473191530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:27,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:27,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:46:27,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631191177] [2023-11-19 07:46:27,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:27,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:27,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:27,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:27,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:27,960 INFO L87 Difference]: Start difference. First operand 52 states and 54 transitions. Second operand has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 7 states have internal predecessors, (7), 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 07:46:28,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:28,672 INFO L93 Difference]: Finished difference Result 86 states and 90 transitions. [2023-11-19 07:46:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:46:28,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 7 states have internal predecessors, (7), 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 8 [2023-11-19 07:46:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:28,674 INFO L225 Difference]: With dead ends: 86 [2023-11-19 07:46:28,674 INFO L226 Difference]: Without dead ends: 85 [2023-11-19 07:46:28,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:46:28,676 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 67 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:28,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 222 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:46:28,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-19 07:46:28,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 65. [2023-11-19 07:46:28,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.5476190476190477) internal successors, (65), 58 states have internal predecessors, (65), 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 07:46:28,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2023-11-19 07:46:28,693 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 8 [2023-11-19 07:46:28,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:28,694 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2023-11-19 07:46:28,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 7 states have internal predecessors, (7), 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 07:46:28,694 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2023-11-19 07:46:28,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 07:46:28,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:28,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:28,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:28,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 07:46:28,916 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_0_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 07:46:28,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:28,917 INFO L85 PathProgramCache]: Analyzing trace with hash 874472310, now seen corresponding path program 1 times [2023-11-19 07:46:28,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:28,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460539543] [2023-11-19 07:46:28,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:28,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:28,953 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:46:28,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1759043914] [2023-11-19 07:46:28,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:28,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:46:28,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:28,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:46:28,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:46:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:29,062 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 54 conjunts are in the unsatisfiable core [2023-11-19 07:46:29,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:29,129 INFO L349 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2023-11-19 07:46:29,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 53 [2023-11-19 07:46:29,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 1 [2023-11-19 07:46:29,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:46:29,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 46 [2023-11-19 07:46:29,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2023-11-19 07:46:29,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 22 [2023-11-19 07:46:29,725 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 07:46:29,726 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:29,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460539543] [2023-11-19 07:46:29,726 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:46:29,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759043914] [2023-11-19 07:46:29,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759043914] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:29,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:46:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127931397] [2023-11-19 07:46:29,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:29,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:46:29,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:46:29,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:46:29,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:46:29,733 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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 07:46:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:30,360 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2023-11-19 07:46:30,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:46:30,361 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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 9 [2023-11-19 07:46:30,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:30,363 INFO L225 Difference]: With dead ends: 85 [2023-11-19 07:46:30,363 INFO L226 Difference]: Without dead ends: 84 [2023-11-19 07:46:30,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:46:30,365 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 63 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:46:30,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 226 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:46:30,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-19 07:46:30,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 65. [2023-11-19 07:46:30,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 42 states have (on average 1.5238095238095237) internal successors, (64), 58 states have internal predecessors, (64), 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 07:46:30,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2023-11-19 07:46:30,380 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 9 [2023-11-19 07:46:30,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:30,380 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2023-11-19 07:46:30,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 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 07:46:30,381 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2023-11-19 07:46:30,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:46:30,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:30,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:30,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:30,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-19 07:46:30,603 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_0_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 07:46:30,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:30,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1338837873, now seen corresponding path program 1 times [2023-11-19 07:46:30,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:46:30,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222404102] [2023-11-19 07:46:30,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:30,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:46:30,647 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:46:30,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [847695760] [2023-11-19 07:46:30,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:30,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:46:30,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:30,655 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:46:30,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:46:30,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:30,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:46:30,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:31,109 INFO L349 Elim1Store]: treesize reduction 393, result has 26.3 percent of original size [2023-11-19 07:46:31,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 68 treesize of output 186 [2023-11-19 07:46:32,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-19 07:46:32,622 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 07:46:32,648 INFO L349 Elim1Store]: treesize reduction 308, result has 0.3 percent of original size [2023-11-19 07:46:32,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 88 treesize of output 162 [2023-11-19 07:46:32,658 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:46:32,684 INFO L349 Elim1Store]: treesize reduction 180, result has 0.6 percent of original size [2023-11-19 07:46:32,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:46:32,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222404102] [2023-11-19 07:46:32,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:46:32,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847695760] [2023-11-19 07:46:32,686 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-19 07:46:32,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:46:32,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:46:32,908 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: |v_#memory_int_32| input size 69 context size 69 output size 69 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:357) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:227) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-19 07:46:32,911 INFO L158 Benchmark]: Toolchain (without parser) took 8298.31ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 149.2MB in the beginning and 105.1MB in the end (delta: 44.1MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2023-11-19 07:46:32,912 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:32,912 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.53ms. Allocated memory is still 197.1MB. Free memory was 149.2MB in the beginning and 138.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:46:32,912 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.70ms. Allocated memory is still 197.1MB. Free memory was 138.7MB in the beginning and 136.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:46:32,913 INFO L158 Benchmark]: Boogie Preprocessor took 30.23ms. Allocated memory is still 197.1MB. Free memory was 136.6MB in the beginning and 135.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:46:32,913 INFO L158 Benchmark]: RCFGBuilder took 506.08ms. Allocated memory is still 197.1MB. Free memory was 135.3MB in the beginning and 118.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 07:46:32,913 INFO L158 Benchmark]: TraceAbstraction took 7390.62ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 117.1MB in the beginning and 105.1MB in the end (delta: 12.0MB). Peak memory consumption was 96.0MB. Max. memory is 16.1GB. [2023-11-19 07:46:32,915 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.53ms. Allocated memory is still 197.1MB. Free memory was 149.2MB in the beginning and 138.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.70ms. Allocated memory is still 197.1MB. Free memory was 138.7MB in the beginning and 136.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.23ms. Allocated memory is still 197.1MB. Free memory was 136.6MB in the beginning and 135.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 506.08ms. Allocated memory is still 197.1MB. Free memory was 135.3MB in the beginning and 118.4MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7390.62ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 117.1MB in the beginning and 105.1MB in the end (delta: 12.0MB). Peak memory consumption was 96.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: |v_#memory_int_32| input size 69 context size 69 output size 69 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: |v_#memory_int_32| input size 69 context size 69 output size 69: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:357) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 07:46:32,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/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_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/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 5ace794fa35bd3dd49302fe61957917bbb7565f1b1f34293812fc47531868d51 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:46:35,591 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:46:35,718 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-19 07:46:35,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:46:35,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:46:35,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:46:35,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:46:35,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:46:35,753 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:46:35,753 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:46:35,754 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:46:35,755 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:46:35,755 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:46:35,756 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:46:35,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:46:35,757 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:46:35,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:46:35,759 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:46:35,759 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:46:35,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:46:35,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:46:35,761 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:46:35,762 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:46:35,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:46:35,763 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:46:35,763 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:46:35,764 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:46:35,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:46:35,764 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:46:35,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:46:35,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:46:35,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:46:35,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:35,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:46:35,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:46:35,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:46:35,768 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:46:35,768 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:46:35,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:46:35,770 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:46:35,770 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:46:35,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:46:35,771 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:46:35,771 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:46:35,771 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_a9e4a910-d09f-411a-a246-387e2d8b49e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ace794fa35bd3dd49302fe61957917bbb7565f1b1f34293812fc47531868d51 [2023-11-19 07:46:36,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:46:36,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:46:36,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:46:36,223 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:46:36,224 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:46:36,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin-ll.c [2023-11-19 07:46:39,321 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:46:39,609 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:46:39,611 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin-ll.c [2023-11-19 07:46:39,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data/17c827cb8/30d522f9022f4358aaa77d55b41e7ad3/FLAG9458ad0e7 [2023-11-19 07:46:39,638 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/data/17c827cb8/30d522f9022f4358aaa77d55b41e7ad3 [2023-11-19 07:46:39,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:46:39,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:46:39,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:39,645 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:46:39,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:46:39,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:39,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103dea37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39, skipping insertion in model container [2023-11-19 07:46:39,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:39,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:46:39,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:39,945 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:46:39,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:46:39,986 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:46:39,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39 WrapperNode [2023-11-19 07:46:39,987 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:46:39,988 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:39,988 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:46:39,989 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:46:40,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,041 INFO L138 Inliner]: procedures = 20, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-11-19 07:46:40,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:46:40,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:46:40,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:46:40,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:46:40,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,080 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:46:40,081 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:46:40,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:46:40,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:46:40,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (1/1) ... [2023-11-19 07:46:40,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:46:40,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:46:40,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:46:40,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:46:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:46:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:46:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:46:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-19 07:46:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:46:40,166 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_40_0 [2023-11-19 07:46:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_40_0 [2023-11-19 07:46:40,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:46:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:46:40,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-19 07:46:40,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:46:40,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:46:40,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:46:40,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:46:40,260 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:46:40,263 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:46:51,980 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:46:51,988 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:46:51,988 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:46:51,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:51 BoogieIcfgContainer [2023-11-19 07:46:51,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:46:51,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:46:51,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:46:51,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:46:51,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:46:39" (1/3) ... [2023-11-19 07:46:52,000 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6287ff00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:52, skipping insertion in model container [2023-11-19 07:46:52,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:46:39" (2/3) ... [2023-11-19 07:46:52,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6287ff00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:46:52, skipping insertion in model container [2023-11-19 07:46:52,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:46:51" (3/3) ... [2023-11-19 07:46:52,006 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin-ll.c [2023-11-19 07:46:52,027 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:46:52,028 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 07:46:52,093 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:46:52,108 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;@b173b41, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:46:52,108 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-19 07:46:52,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 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 07:46:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:46:52,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:52,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:52,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 07:46:52,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:52,125 INFO L85 PathProgramCache]: Analyzing trace with hash -29049519, now seen corresponding path program 1 times [2023-11-19 07:46:52,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:46:52,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [743123683] [2023-11-19 07:46:52,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:52,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:46:52,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:46:52,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:46:52,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 07:46:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:46:52,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:46:52,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:46:52,438 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 07:46:52,438 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:46:52,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:46:52,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [743123683] [2023-11-19 07:46:52,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [743123683] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:46:52,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:46:52,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:46:52,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526253862] [2023-11-19 07:46:52,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:46:52,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:46:52,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:46:52,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:46:52,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:52,490 INFO L87 Difference]: Start difference. First operand has 59 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 53 states have internal predecessors, (57), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 07:46:52,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:46:52,526 INFO L93 Difference]: Finished difference Result 111 states and 129 transitions. [2023-11-19 07:46:52,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:46:52,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2023-11-19 07:46:52,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:46:52,538 INFO L225 Difference]: With dead ends: 111 [2023-11-19 07:46:52,538 INFO L226 Difference]: Without dead ends: 49 [2023-11-19 07:46:52,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:46:52,548 INFO L413 NwaCegarLoop]: 58 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, 58 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 [2023-11-19 07:46:52,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:46:52,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-11-19 07:46:52,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2023-11-19 07:46:52,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 44 states have internal predecessors, (45), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:46:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2023-11-19 07:46:52,597 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 8 [2023-11-19 07:46:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:46:52,597 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2023-11-19 07:46:52,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 07:46:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2023-11-19 07:46:52,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:46:52,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:46:52,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:46:52,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-19 07:46:52,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:46:52,807 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2023-11-19 07:46:52,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:46:52,808 INFO L85 PathProgramCache]: Analyzing trace with hash 28208783, now seen corresponding path program 1 times [2023-11-19 07:46:52,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:46:52,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823087156] [2023-11-19 07:46:52,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:46:52,810 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:46:52,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:46:52,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 07:46:52,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9e4a910-d09f-411a-a246-387e2d8b49e9/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process