./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.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_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/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_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/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_69ab900d-10e3-4d41-89e3-d9cf2987ded3/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 ba87ab61cc50ccb52aece6219e7fc9da23076f2342241139ee756008f0599342 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:09:27,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:09:27,465 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-19 07:09:27,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:09:27,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:09:27,501 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:09:27,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:09:27,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:09:27,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:09:27,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:09:27,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:09:27,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:09:27,508 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:09:27,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:09:27,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:09:27,511 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:09:27,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:09:27,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:09:27,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:09:27,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:09:27,519 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:09:27,519 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:09:27,520 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:09:27,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:09:27,521 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:09:27,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:09:27,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:09:27,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:09:27,523 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:09:27,523 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:09:27,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:27,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:09:27,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:09:27,526 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:09:27,526 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:09:27,526 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:09:27,526 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:09:27,527 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:09:27,527 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:09:27,527 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:09:27,528 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:09:27,528 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_69ab900d-10e3-4d41-89e3-d9cf2987ded3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba87ab61cc50ccb52aece6219e7fc9da23076f2342241139ee756008f0599342 [2023-11-19 07:09:27,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:09:27,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:09:27,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:09:27,861 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:09:27,862 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:09:27,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c [2023-11-19 07:09:31,075 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:09:31,333 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:09:31,334 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/sv-benchmarks/c/recursified_nla-digbench/recursified_geo1.c [2023-11-19 07:09:31,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/data/f78d5f142/bfd22a69293c4d408a4c03e60c432420/FLAGb45bae3a4 [2023-11-19 07:09:31,364 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/data/f78d5f142/bfd22a69293c4d408a4c03e60c432420 [2023-11-19 07:09:31,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:09:31,372 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:09:31,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:31,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:09:31,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:09:31,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,387 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46beace0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31, skipping insertion in model container [2023-11-19 07:09:31,388 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,417 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:09:31,635 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:31,646 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:09:31,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:09:31,686 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:09:31,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31 WrapperNode [2023-11-19 07:09:31,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:09:31,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:31,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:09:31,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:09:31,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,739 INFO L138 Inliner]: procedures = 16, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-19 07:09:31,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:09:31,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:09:31,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:09:31,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:09:31,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,773 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,776 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:09:31,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:09:31,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:09:31,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:09:31,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (1/1) ... [2023-11-19 07:09:31,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:09:31,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:31,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:09:31,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:09:31,873 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2023-11-19 07:09:31,873 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2023-11-19 07:09:31,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:09:31,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:09:31,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:09:31,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:09:31,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:09:31,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:09:31,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:09:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:09:31,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:09:31,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:09:31,993 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:09:31,995 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:09:32,436 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:09:32,451 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:09:32,451 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:09:32,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:32 BoogieIcfgContainer [2023-11-19 07:09:32,464 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:09:32,467 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:09:32,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:09:32,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:09:32,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:09:31" (1/3) ... [2023-11-19 07:09:32,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da56703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:32, skipping insertion in model container [2023-11-19 07:09:32,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:31" (2/3) ... [2023-11-19 07:09:32,474 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da56703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:32, skipping insertion in model container [2023-11-19 07:09:32,474 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:32" (3/3) ... [2023-11-19 07:09:32,475 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1.c [2023-11-19 07:09:32,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:09:32,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-19 07:09:32,554 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:09:32,561 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;@760f226d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:09:32,562 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-19 07:09:32,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 40 states have (on average 1.675) internal successors, (67), 65 states have internal predecessors, (67), 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 07:09:32,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 07:09:32,580 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:32,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:09:32,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:09:32,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:32,586 INFO L85 PathProgramCache]: Analyzing trace with hash -2013989493, now seen corresponding path program 1 times [2023-11-19 07:09:32,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:32,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694472260] [2023-11-19 07:09:32,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:32,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:32,786 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:09:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817269215] [2023-11-19 07:09:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:32,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:32,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:32,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:32,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:09:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:33,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-19 07:09:33,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:33,285 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:09:33,326 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:09:33,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 61 [2023-11-19 07:09:33,431 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:09:33,436 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:09:33,450 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:09:33,456 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:09:33,481 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:09:33,501 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 07:09:33,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,544 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 25 [2023-11-19 07:09:33,552 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 17 treesize of output 13 [2023-11-19 07:09:33,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:33,596 INFO L349 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-11-19 07:09:33,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 21 [2023-11-19 07:09:33,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 7 [2023-11-19 07:09:33,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-19 07:09:33,743 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 07:09:33,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:33,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:33,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694472260] [2023-11-19 07:09:33,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:09:33,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817269215] [2023-11-19 07:09:33,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817269215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:33,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:33,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:09:33,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426991507] [2023-11-19 07:09:33,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:33,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:09:33,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:33,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:09:33,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:09:33,798 INFO L87 Difference]: Start difference. First operand has 71 states, 40 states have (on average 1.675) internal successors, (67), 65 states have internal predecessors, (67), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:34,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:34,119 INFO L93 Difference]: Finished difference Result 173 states and 189 transitions. [2023-11-19 07:09:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:09:34,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 07:09:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:34,133 INFO L225 Difference]: With dead ends: 173 [2023-11-19 07:09:34,133 INFO L226 Difference]: Without dead ends: 99 [2023-11-19 07:09:34,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:09:34,146 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 70 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:34,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 245 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:09:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-19 07:09:34,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 79. [2023-11-19 07:09:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.6666666666666667) internal successors, (80), 72 states have internal predecessors, (80), 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 07:09:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 89 transitions. [2023-11-19 07:09:34,218 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 89 transitions. Word has length 6 [2023-11-19 07:09:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:34,219 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 89 transitions. [2023-11-19 07:09:34,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:09:34,219 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 89 transitions. [2023-11-19 07:09:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:09:34,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:34,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:34,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:34,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-19 07:09:34,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:09:34,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1990835194, now seen corresponding path program 1 times [2023-11-19 07:09:34,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:34,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279993165] [2023-11-19 07:09:34,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:34,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:34,499 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:09:34,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129343931] [2023-11-19 07:09:34,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:34,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:34,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:34,504 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:34,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:09:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:09:34,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-19 07:09:34,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:09:34,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:34,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:34,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:34,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 35 [2023-11-19 07:09:34,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:09:34,693 INFO L349 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2023-11-19 07:09:34,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 57 treesize of output 49 [2023-11-19 07:09:34,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 21 [2023-11-19 07:09:34,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-19 07:09:34,803 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 07:09:34,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:09:34,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:09:34,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279993165] [2023-11-19 07:09:34,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-19 07:09:34,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129343931] [2023-11-19 07:09:34,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129343931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:09:34,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:09:34,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:09:34,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889897878] [2023-11-19 07:09:34,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:09:34,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:09:34,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:09:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:09:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:09:34,821 INFO L87 Difference]: Start difference. First operand 79 states and 89 transitions. Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 07:09:35,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:09:35,041 INFO L93 Difference]: Finished difference Result 99 states and 102 transitions. [2023-11-19 07:09:35,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:09:35,042 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 7 [2023-11-19 07:09:35,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:09:35,043 INFO L225 Difference]: With dead ends: 99 [2023-11-19 07:09:35,043 INFO L226 Difference]: Without dead ends: 98 [2023-11-19 07:09:35,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:09:35,045 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 66 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:09:35,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 214 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:09:35,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-19 07:09:35,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 79. [2023-11-19 07:09:35,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 48 states have (on average 1.6458333333333333) internal successors, (79), 72 states have internal predecessors, (79), 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 07:09:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2023-11-19 07:09:35,058 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 7 [2023-11-19 07:09:35,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:09:35,059 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2023-11-19 07:09:35,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 07:09:35,059 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2023-11-19 07:09:35,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:09:35,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:09:35,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:09:35,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:35,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:35,280 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_28_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2023-11-19 07:09:35,281 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:09:35,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1586348909, now seen corresponding path program 1 times [2023-11-19 07:09:35,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:09:35,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861751424] [2023-11-19 07:09:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:35,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:09:35,315 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-19 07:09:35,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [316840356] [2023-11-19 07:09:35,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:09:35,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:35,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:09:35,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:09:35,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:09:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:35,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:09:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:09:35,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:09:35,466 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 07:09:35,467 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_28_to_36_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2023-11-19 07:09:35,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-19 07:09:35,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-19 07:09:35,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-19 07:09:35,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-19 07:09:35,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-19 07:09:35,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-19 07:09:35,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-19 07:09:35,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-19 07:09:35,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-19 07:09:35,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-19 07:09:35,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-19 07:09:35,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-19 07:09:35,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-19 07:09:35,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-19 07:09:35,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_28_to_36_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-19 07:09:35,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-19 07:09:35,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2023-11-19 07:09:35,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-19 07:09:35,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-19 07:09:35,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-19 07:09:35,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-19 07:09:35,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-19 07:09:35,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-19 07:09:35,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:09:35,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:09:35,695 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 07:09:35,701 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:09:35,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-19 07:09:35,732 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-19 07:09:35,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 07:09:35,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-19 07:09:35,733 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-19 07:09:35,734 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 07:09:35,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-19 07:09:35,735 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-19 07:09:35,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:09:35 BoogieIcfgContainer [2023-11-19 07:09:35,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:09:35,748 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:09:35,749 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:09:35,749 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:09:35,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:32" (3/4) ... [2023-11-19 07:09:35,750 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 07:09:35,767 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-19 07:09:35,768 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-19 07:09:35,774 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 07:09:35,775 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-19 07:09:35,776 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-19 07:09:35,776 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-19 07:09:35,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-19 07:09:35,777 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-19 07:09:35,814 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:09:35,814 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:09:35,816 INFO L158 Benchmark]: Toolchain (without parser) took 4442.95ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 99.7MB in the beginning and 74.2MB in the end (delta: 25.5MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,817 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 146.8MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:35,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.47ms. Allocated memory is still 146.8MB. Free memory was 99.3MB in the beginning and 88.5MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.22ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 86.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:09:35,818 INFO L158 Benchmark]: Boogie Preprocessor took 35.10ms. Allocated memory is still 146.8MB. Free memory was 86.8MB in the beginning and 85.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,818 INFO L158 Benchmark]: RCFGBuilder took 687.72ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 85.7MB in the beginning and 177.1MB in the end (delta: -91.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,819 INFO L158 Benchmark]: TraceAbstraction took 3279.89ms. Allocated memory is still 209.7MB. Free memory was 177.1MB in the beginning and 76.3MB in the end (delta: 100.9MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,819 INFO L158 Benchmark]: Witness Printer took 66.03ms. Allocated memory is still 209.7MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:09:35,822 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 146.8MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.47ms. Allocated memory is still 146.8MB. Free memory was 99.3MB in the beginning and 88.5MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.22ms. Allocated memory is still 146.8MB. Free memory was 88.5MB in the beginning and 86.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.10ms. Allocated memory is still 146.8MB. Free memory was 86.8MB in the beginning and 85.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 687.72ms. Allocated memory was 146.8MB in the beginning and 209.7MB in the end (delta: 62.9MB). Free memory was 85.7MB in the beginning and 177.1MB in the end (delta: -91.5MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 3279.89ms. Allocated memory is still 209.7MB. Free memory was 177.1MB in the beginning and 76.3MB in the end (delta: 100.9MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * Witness Printer took 66.03ms. Allocated memory is still 209.7MB. Free memory was 76.3MB in the beginning and 74.2MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 57]: integer overflow possible integer overflow possible We found a FailurePath: [L78] int z; [L79] int k; [L80] int x; [L81] int y; [L82] int c; [L83] z = __VERIFIER_nondet_int() [L84] k = __VERIFIER_nondet_int() [L85] x = 1 [L86] EXPR \read(z) [L86] y = z [L87] c = 1 VAL [c={8:0}, k={5:0}, x={6:0}, y={7:0}, z={4:0}] [L88] CALL func_to_recursive_line_28_to_36_0(&y, &k, &x, &c, &z) VAL [c={8:0}, k={5:0}, x={6:0}, y={7:0}, z={4:0}] [L57] EXPR \read(*x) [L57] EXPR \read(*z) VAL [c={8:0}, c={8:0}, k={5:0}, k={5:0}, x={6:0}, x={6:0}, y={7:0}, y={7:0}, z={4:0}, z={4:0}] [L57] EXPR (*x) * (*z) [L57] EXPR \read(*x) VAL [c={8:0}, c={8:0}, k={5:0}, k={5:0}, x={6:0}, x={6:0}, y={7:0}, y={7:0}, z={4:0}, z={4:0}] [L57] ((*x) * (*z)) - (*x) VAL [c={8:0}, c={8:0}, k={5:0}, k={5:0}, x={6:0}, x={6:0}, y={7:0}, y={7:0}, z={4:0}, z={4:0}] - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 71 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 136 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 459 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 367 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 222 IncrementalHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 92 mSDtfsCounter, 222 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 39 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 145 SizeOfPredicates, 28 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 07:09:35,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ab900d-10e3-4d41-89e3-d9cf2987ded3/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)