./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya --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 a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:55:44,071 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:55:44,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-28 23:55:44,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:55:44,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:55:44,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:55:44,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:55:44,176 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:55:44,177 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:55:44,178 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:55:44,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:55:44,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:55:44,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:55:44,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:55:44,181 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:55:44,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:55:44,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:55:44,183 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:55:44,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:55:44,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:55:44,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:55:44,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:55:44,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:55:44,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:55:44,187 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 23:55:44,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:55:44,188 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:55:44,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:55:44,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:55:44,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:55:44,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:55:44,190 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:55:44,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:55:44,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:44,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:55:44,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:55:44,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:55:44,191 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:55:44,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:55:44,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:55:44,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:55:44,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:55:44,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:55:44,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:55:44,193 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_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2023-11-28 23:55:44,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:55:44,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:55:44,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:55:44,464 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:55:44,465 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:55:44,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2023-11-28 23:55:47,184 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:55:47,399 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:55:47,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2023-11-28 23:55:47,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data/11ccc9313/c63a9841ba66490c812a3c113bf2f61e/FLAG39f71c92b [2023-11-28 23:55:47,418 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data/11ccc9313/c63a9841ba66490c812a3c113bf2f61e [2023-11-28 23:55:47,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:55:47,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:55:47,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:47,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:55:47,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:55:47,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a0e35e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47, skipping insertion in model container [2023-11-28 23:55:47,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,451 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:55:47,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:47,613 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:55:47,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:47,647 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:55:47,648 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47 WrapperNode [2023-11-28 23:55:47,648 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:47,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:47,649 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:55:47,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:55:47,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,663 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,678 INFO L138 Inliner]: procedures = 16, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-11-28 23:55:47,679 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:47,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:55:47,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:55:47,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:55:47,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,690 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,706 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 4, 5, 8, 5, 5]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 2, 3, 2, 1]. [2023-11-28 23:55:47,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,716 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:55:47,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:55:47,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:55:47,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:55:47,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (1/1) ... [2023-11-28 23:55:47,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:47,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:47,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:55:47,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:55:47,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:55:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:55:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 23:55:47,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 23:55:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 23:55:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-28 23:55:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-28 23:55:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:55:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 23:55:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 23:55:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 23:55:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 23:55:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-28 23:55:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-28 23:55:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:55:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:55:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 23:55:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 23:55:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 23:55:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 23:55:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-28 23:55:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-28 23:55:47,797 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 23:55:47,797 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 23:55:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2023-11-28 23:55:47,798 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2023-11-28 23:55:47,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:55:47,897 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:55:47,899 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:55:48,143 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:55:48,177 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:55:48,177 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:55:48,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:48 BoogieIcfgContainer [2023-11-28 23:55:48,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:55:48,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:55:48,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:55:48,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:55:48,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:55:47" (1/3) ... [2023-11-28 23:55:48,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62686977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:48, skipping insertion in model container [2023-11-28 23:55:48,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:47" (2/3) ... [2023-11-28 23:55:48,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62686977 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:48, skipping insertion in model container [2023-11-28 23:55:48,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:48" (3/3) ... [2023-11-28 23:55:48,189 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2023-11-28 23:55:48,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:55:48,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-28 23:55:48,264 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:55:48,271 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;@78e99c8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:55:48,271 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-28 23:55:48,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 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) [2023-11-28 23:55:48,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:55:48,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:48,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:48,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-28 23:55:48,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:48,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1055229645, now seen corresponding path program 1 times [2023-11-28 23:55:48,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:48,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255981032] [2023-11-28 23:55:48,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:48,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:55:48,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255981032] [2023-11-28 23:55:48,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-28 23:55:48,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830062958] [2023-11-28 23:55:48,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:48,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:55:48,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:48,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:55:48,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:55:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:48,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:55:48,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:48,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:48,615 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:48,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830062958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:48,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:48,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:55:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489374401] [2023-11-28 23:55:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:48,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:55:48,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:55:48,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:55:48,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:55:48,651 INFO L87 Difference]: Start difference. First operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 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 3.0) internal successors, (6), 2 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) [2023-11-28 23:55:48,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:48,686 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2023-11-28 23:55:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:55:48,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2023-11-28 23:55:48,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:48,696 INFO L225 Difference]: With dead ends: 106 [2023-11-28 23:55:48,696 INFO L226 Difference]: Without dead ends: 51 [2023-11-28 23:55:48,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:55:48,703 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:48,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 23:55:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-28 23:55:48,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-28 23:55:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 46 states have internal predecessors, (47), 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) [2023-11-28 23:55:48,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2023-11-28 23:55:48,738 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 7 [2023-11-28 23:55:48,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:48,738 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2023-11-28 23:55:48,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-28 23:55:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2023-11-28 23:55:48,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:55:48,739 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:48,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:48,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:55:48,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-28 23:55:48,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-28 23:55:48,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:48,947 INFO L85 PathProgramCache]: Analyzing trace with hash 1112487947, now seen corresponding path program 1 times [2023-11-28 23:55:48,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:55:48,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180480956] [2023-11-28 23:55:48,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:48,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:55:48,984 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-28 23:55:48,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1956439485] [2023-11-28 23:55:48,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:48,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:55:48,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:48,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:55:48,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:55:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:55:49,098 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:55:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:55:49,154 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 23:55:49,154 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 23:55:49,156 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-28 23:55:49,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-28 23:55:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-28 23:55:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-28 23:55:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-28 23:55:49,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-28 23:55:49,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-28 23:55:49,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-28 23:55:49,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-28 23:55:49,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-28 23:55:49,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-28 23:55:49,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-28 23:55:49,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-28 23:55:49,160 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-28 23:55:49,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-28 23:55:49,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-28 23:55:49,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:55:49,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:55:49,370 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-28 23:55:49,373 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:55:49,386 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-28 23:55:49,386 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-28 23:55:49,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-28 23:55:49,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-28 23:55:49,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-28 23:55:49,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-28 23:55:49,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:55:49 BoogieIcfgContainer [2023-11-28 23:55:49,394 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:55:49,394 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:55:49,395 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:55:49,395 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:55:49,395 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:48" (3/4) ... [2023-11-28 23:55:49,397 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 23:55:49,397 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:55:49,398 INFO L158 Benchmark]: Toolchain (without parser) took 1975.95ms. Allocated memory is still 130.0MB. Free memory was 98.7MB in the beginning and 60.6MB in the end (delta: 38.0MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2023-11-28 23:55:49,398 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:49,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.64ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 87.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:55:49,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.31ms. Allocated memory is still 130.0MB. Free memory was 87.5MB in the beginning and 86.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:49,399 INFO L158 Benchmark]: Boogie Preprocessor took 45.66ms. Allocated memory is still 130.0MB. Free memory was 86.0MB in the beginning and 83.8MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 23:55:49,400 INFO L158 Benchmark]: RCFGBuilder took 452.84ms. Allocated memory is still 130.0MB. Free memory was 83.5MB in the beginning and 65.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-28 23:55:49,400 INFO L158 Benchmark]: TraceAbstraction took 1212.81ms. Allocated memory is still 130.0MB. Free memory was 64.7MB in the beginning and 60.8MB in the end (delta: 3.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:49,400 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 130.0MB. Free memory was 60.8MB in the beginning and 60.6MB in the end (delta: 180.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:49,402 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 130.0MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.64ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 87.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.31ms. Allocated memory is still 130.0MB. Free memory was 87.5MB in the beginning and 86.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.66ms. Allocated memory is still 130.0MB. Free memory was 86.0MB in the beginning and 83.8MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 452.84ms. Allocated memory is still 130.0MB. Free memory was 83.5MB in the beginning and 65.4MB in the end (delta: 18.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1212.81ms. Allocated memory is still 130.0MB. Free memory was 64.7MB in the beginning and 60.8MB in the end (delta: 3.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 130.0MB. Free memory was 60.8MB in the beginning and 60.6MB in the end (delta: 180.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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 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 - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of to_int at line 87. Possible FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [a={8:0}, b={7:0}, x={6:0}, y={4:0}, z={5:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [a={8:0}, a={8:0}, b={7:0}, b={7:0}, x={6:0}, x={6:0}, y={4:0}, y={4:0}, z={5:0}, z={5:0}] [L54] (*x) * (*y) VAL [a={8:0}, a={8:0}, b={7:0}, b={7:0}, x={6:0}, x={6:0}, y={4:0}, y={4:0}, z={5:0}, z={5:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: 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: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: 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, 54 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 55 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 could not prove your program: unable to determine feasibility of some traces [2023-11-28 23:55:49,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya --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 a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:55:51,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:55:51,478 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-28 23:55:51,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:55:51,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:55:51,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:55:51,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:55:51,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:55:51,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:55:51,518 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:55:51,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:55:51,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:55:51,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:55:51,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:55:51,521 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:55:51,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:55:51,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:55:51,523 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:55:51,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:55:51,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:55:51,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:55:51,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:55:51,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:55:51,526 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 23:55:51,527 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 23:55:51,527 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 23:55:51,528 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 23:55:51,528 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:55:51,529 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:55:51,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:55:51,529 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:55:51,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:55:51,530 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:55:51,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:55:51,531 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:55:51,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:51,531 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:55:51,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:55:51,532 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:55:51,532 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 23:55:51,532 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 23:55:51,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:55:51,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:55:51,533 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:55:51,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:55:51,533 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:55:51,534 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 23:55:51,534 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_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7dff50a5c131f5f3e263636f30a459d7f3ec4f0fe901f92a5987676a99374c1 [2023-11-28 23:55:51,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:55:51,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:55:51,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:55:51,848 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:55:51,849 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:55:51,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2023-11-28 23:55:54,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:55:54,847 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:55:54,848 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/sv-benchmarks/c/recursified_nla-digbench/recursified_prodbin.c [2023-11-28 23:55:54,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data/780d97c16/a5d6d1763a724eccab7c7a4aceacf55a/FLAG9a47cef4f [2023-11-28 23:55:54,869 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/data/780d97c16/a5d6d1763a724eccab7c7a4aceacf55a [2023-11-28 23:55:54,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:55:54,873 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:55:54,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:54,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:55:54,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:55:54,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:54" (1/1) ... [2023-11-28 23:55:54,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2600910c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:54, skipping insertion in model container [2023-11-28 23:55:54,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:54" (1/1) ... [2023-11-28 23:55:54,903 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:55:55,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:55,069 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:55:55,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:55:55,108 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:55:55,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55 WrapperNode [2023-11-28 23:55:55,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:55:55,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:55,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:55:55,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:55:55,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,147 INFO L138 Inliner]: procedures = 19, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-11-28 23:55:55,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:55:55,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:55:55,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:55:55,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:55:55,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,163 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,181 INFO L175 MemorySlicer]: Split 29 memory accesses to 6 slices as follows [2, 4, 5, 5, 8, 5]. 28 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 1, 1, 2, 3, 2]. [2023-11-28 23:55:55,181 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,181 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,193 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:55:55,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:55:55,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:55:55,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:55:55,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (1/1) ... [2023-11-28 23:55:55,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:55:55,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:55:55,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:55:55,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:55:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:55:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 23:55:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 23:55:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-28 23:55:55,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-28 23:55:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-28 23:55:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-28 23:55:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:55:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 23:55:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 23:55:55,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-28 23:55:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-28 23:55:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-28 23:55:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-28 23:55:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:55:55,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:55:55,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 23:55:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 23:55:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_40_0 [2023-11-28 23:55:55,291 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_40_0 [2023-11-28 23:55:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:55:55,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 23:55:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 23:55:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-28 23:55:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-28 23:55:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-28 23:55:55,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-28 23:55:55,407 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:55:55,410 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:55:57,158 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:55:57,192 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:55:57,193 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 23:55:57,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:57 BoogieIcfgContainer [2023-11-28 23:55:57,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:55:57,196 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:55:57,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:55:57,200 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:55:57,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:55:54" (1/3) ... [2023-11-28 23:55:57,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657594c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:57, skipping insertion in model container [2023-11-28 23:55:57,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:55" (2/3) ... [2023-11-28 23:55:57,201 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657594c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:55:57, skipping insertion in model container [2023-11-28 23:55:57,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:57" (3/3) ... [2023-11-28 23:55:57,203 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prodbin.c [2023-11-28 23:55:57,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:55:57,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-28 23:55:57,267 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:55:57,273 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;@50d0a5e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:55:57,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-11-28 23:55:57,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 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) [2023-11-28 23:55:57,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:55:57,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:57,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:57,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-28 23:55:57,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:57,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1055229645, now seen corresponding path program 1 times [2023-11-28 23:55:57,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:57,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019918614] [2023-11-28 23:55:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:57,309 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 [2023-11-28 23:55:57,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:57,312 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:55:57,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:55:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:55:57,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 23:55:57,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:55:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:55:57,502 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:55:57,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 23:55:57,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019918614] [2023-11-28 23:55:57,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019918614] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:55:57,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:55:57,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:55:57,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223929013] [2023-11-28 23:55:57,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:55:57,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 23:55:57,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 23:55:57,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 23:55:57,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:55:57,537 INFO L87 Difference]: Start difference. First operand has 54 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 48 states have internal predecessors, (52), 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 3.0) internal successors, (6), 2 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) [2023-11-28 23:55:58,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:55:58,058 INFO L93 Difference]: Finished difference Result 103 states and 121 transitions. [2023-11-28 23:55:58,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 23:55:58,061 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2023-11-28 23:55:58,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:55:58,067 INFO L225 Difference]: With dead ends: 103 [2023-11-28 23:55:58,067 INFO L226 Difference]: Without dead ends: 48 [2023-11-28 23:55:58,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 23:55:58,073 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:55:58,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:55:58,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-28 23:55:58,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-28 23:55:58,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.4666666666666666) internal successors, (44), 43 states have internal predecessors, (44), 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) [2023-11-28 23:55:58,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2023-11-28 23:55:58,111 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 7 [2023-11-28 23:55:58,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:55:58,111 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2023-11-28 23:55:58,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2023-11-28 23:55:58,112 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2023-11-28 23:55:58,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:55:58,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:55:58,112 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:55:58,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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)] Forceful destruction successful, exit code 0 [2023-11-28 23:55:58,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:55:58,314 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-11-28 23:55:58,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:55:58,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1112487947, now seen corresponding path program 1 times [2023-11-28 23:55:58,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 23:55:58,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1293281144] [2023-11-28 23:55:58,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:55:58,316 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 [2023-11-28 23:55:58,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 23:55:58,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-28 23:55:58,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:55:58,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:55:58,551 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 23:55:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 23:55:58,755 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-28 23:55:58,755 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 23:55:58,757 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_40_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2023-11-28 23:55:58,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2023-11-28 23:55:58,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2023-11-28 23:55:58,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2023-11-28 23:55:58,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2023-11-28 23:55:58,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2023-11-28 23:55:58,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2023-11-28 23:55:58,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2023-11-28 23:55:58,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2023-11-28 23:55:58,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2023-11-28 23:55:58,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2023-11-28 23:55:58,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2023-11-28 23:55:58,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2023-11-28 23:55:58,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2023-11-28 23:55:58,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2023-11-28 23:55:58,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_40_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2023-11-28 23:55:58,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-28 23:55:58,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-28 23:55:58,967 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-28 23:55:58,971 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 23:55:58,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-28 23:55:58,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-28 23:55:58,987 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-28 23:55:58,988 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-28 23:55:58,988 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-28 23:55:58,988 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-28 23:55:58,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:55:58 BoogieIcfgContainer [2023-11-28 23:55:58,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 23:55:58,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 23:55:58,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 23:55:58,999 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 23:55:58,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:57" (3/4) ... [2023-11-28 23:55:59,000 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-28 23:55:59,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-28 23:55:59,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-28 23:55:59,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-28 23:55:59,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-28 23:55:59,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem6 could not be translated [2023-11-28 23:55:59,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-28 23:55:59,044 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 23:55:59,044 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 23:55:59,045 INFO L158 Benchmark]: Toolchain (without parser) took 4172.06ms. Allocated memory is still 92.3MB. Free memory was 68.8MB in the beginning and 43.6MB in the end (delta: 25.2MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2023-11-28 23:55:59,045 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 23:55:59,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.05ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 57.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-28 23:55:59,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 55.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:59,047 INFO L158 Benchmark]: Boogie Preprocessor took 57.90ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 52.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:59,047 INFO L158 Benchmark]: RCFGBuilder took 1986.70ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 53.3MB in the end (delta: -760.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-28 23:55:59,048 INFO L158 Benchmark]: TraceAbstraction took 1801.28ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 46.2MB in the end (delta: 6.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2023-11-28 23:55:59,048 INFO L158 Benchmark]: Witness Printer took 45.95ms. Allocated memory is still 92.3MB. Free memory was 46.2MB in the beginning and 43.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-28 23:55:59,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 60.8MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.05ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 57.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 55.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.90ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 52.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1986.70ms. Allocated memory is still 92.3MB. Free memory was 52.5MB in the beginning and 53.3MB in the end (delta: -760.1kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1801.28ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 46.2MB in the end (delta: 6.2MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 45.95ms. Allocated memory is still 92.3MB. Free memory was 46.2MB in the beginning and 43.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. 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~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 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~mem6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem6 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: 54]: integer overflow possible integer overflow possible We found a FailurePath: [L82] int a; [L83] int b; [L84] int x; [L85] int y; [L86] int z; [L87] a = __VERIFIER_nondet_double() [L88] b = __VERIFIER_nondet_double() [L89] EXPR \read(b) [L89] CALL assume_abort_if_not(b >= 1) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L89] RET assume_abort_if_not(b >= 1) [L90] EXPR \read(a) [L90] x = a [L91] EXPR \read(b) [L91] y = b [L92] z = 0 [L93] CALL func_to_recursive_line_30_to_40_0(&a, &b, &z, &x, &y) VAL [a={7:0}, b={5:0}, x={4:0}, y={14:0}, z={6:0}] [L54] \read(*z) [L54] EXPR \read(*x) [L54] EXPR \read(*y) VAL [a={7:0}, a={7:0}, b={5:0}, b={5:0}, x={4:0}, x={4:0}, y={14:0}, y={14:0}, z={6:0}, z={6:0}] [L54] (*x) * (*y) VAL [a={7:0}, a={7:0}, b={5:0}, b={5:0}, x={4:0}, x={4:0}, y={14:0}, y={14:0}, z={6:0}, z={6:0}] - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 64]: 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: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: 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, 54 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 52 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-11-28 23:55:59,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92d831d3-267b-414d-a66e-35b21c98570c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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)