./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.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_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/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_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/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_ca15a43d-9946-4ef9-88cf-f321a37b327f/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 dfa146aa1f7e35376cbccd06e874bc54d20f2c59efb61bc729adb7e4f2824594 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:42:28,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:42:29,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:42:29,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:42:29,042 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:42:29,072 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:42:29,073 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:42:29,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:42:29,074 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:42:29,075 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:42:29,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:42:29,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:42:29,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:42:29,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:42:29,077 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:42:29,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:42:29,078 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:42:29,079 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:42:29,079 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:42:29,080 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:42:29,080 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:42:29,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:42:29,082 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:42:29,082 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:42:29,082 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:42:29,083 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:42:29,083 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:42:29,084 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:42:29,084 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:42:29,085 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:42:29,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:42:29,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:42:29,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:42:29,086 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:42:29,087 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:42:29,087 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:42:29,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:42:29,088 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:42:29,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:42:29,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:42:29,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:42:29,090 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:42:29,090 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:42:29,090 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:42:29,090 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_ca15a43d-9946-4ef9-88cf-f321a37b327f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfa146aa1f7e35376cbccd06e874bc54d20f2c59efb61bc729adb7e4f2824594 [2023-11-29 01:42:29,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:42:29,387 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:42:29,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:42:29,391 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:42:29,391 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:42:29,393 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.c [2023-11-29 01:42:32,152 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:42:32,342 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:42:32,343 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/sv-benchmarks/c/recursified_nla-digbench/recursified_geo2.c [2023-11-29 01:42:32,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/data/73c1fc3c9/5abb5b8cbaf0462985b3aaa15811d4f3/FLAGbba8de978 [2023-11-29 01:42:32,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/data/73c1fc3c9/5abb5b8cbaf0462985b3aaa15811d4f3 [2023-11-29 01:42:32,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:42:32,364 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:42:32,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:42:32,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:42:32,369 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:42:32,370 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,371 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667a8358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32, skipping insertion in model container [2023-11-29 01:42:32,371 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,394 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:42:32,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:42:32,547 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:42:32,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:42:32,578 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:42:32,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32 WrapperNode [2023-11-29 01:42:32,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:42:32,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:42:32,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:42:32,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:42:32,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,619 INFO L138 Inliner]: procedures = 16, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2023-11-29 01:42:32,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:42:32,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:42:32,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:42:32,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:42:32,632 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,635 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,652 INFO L175 MemorySlicer]: Split 34 memory accesses to 7 slices as follows [2, 7, 7, 2, 7, 5, 4]. 21 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 7, 0, 0, 0, 0]. The 8 writes are split as follows [0, 2, 0, 1, 1, 2, 2]. [2023-11-29 01:42:32,652 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,659 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,664 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,665 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:42:32,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:42:32,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:42:32,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:42:32,671 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (1/1) ... [2023-11-29 01:42:32,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:42:32,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:32,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:42:32,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 01:42:32,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 01:42:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:42:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:42:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:42:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:42:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:42:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:42:32,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 01:42:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 01:42:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2023-11-29 01:42:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2023-11-29 01:42:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:42:32,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:42:32,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:42:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:42:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:42:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:42:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:42:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 01:42:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 01:42:32,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:42:32,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:42:32,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:42:32,830 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:42:32,832 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:42:33,131 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:42:33,163 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:42:33,163 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 01:42:33,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:42:33 BoogieIcfgContainer [2023-11-29 01:42:33,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:42:33,166 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:42:33,166 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:42:33,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:42:33,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:42:32" (1/3) ... [2023-11-29 01:42:33,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7283f07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:42:33, skipping insertion in model container [2023-11-29 01:42:33,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:32" (2/3) ... [2023-11-29 01:42:33,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7283f07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:42:33, skipping insertion in model container [2023-11-29 01:42:33,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:42:33" (3/3) ... [2023-11-29 01:42:33,171 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo2.c [2023-11-29 01:42:33,185 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:42:33,185 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-29 01:42:33,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:42:33,232 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;@83f6412, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:42:33,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-29 01:42:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 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) [2023-11-29 01:42:33,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 01:42:33,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:33,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 01:42:33,241 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 01:42:33,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:33,246 INFO L85 PathProgramCache]: Analyzing trace with hash 125718117, now seen corresponding path program 1 times [2023-11-29 01:42:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145589675] [2023-11-29 01:42:33,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:33,380 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:33,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1926416126] [2023-11-29 01:42:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:33,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:33,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:33,382 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:33,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:42:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:33,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 34 conjunts are in the unsatisfiable core [2023-11-29 01:42:33,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:33,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:42:33,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:42:33,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-29 01:42:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:42:33,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:33,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:33,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145589675] [2023-11-29 01:42:33,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:33,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926416126] [2023-11-29 01:42:33,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926416126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:33,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:42:33,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:42:33,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747758474] [2023-11-29 01:42:33,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:33,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:42:33,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:33,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:42:33,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:42:33,809 INFO L87 Difference]: Start difference. First operand has 74 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-29 01:42:34,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:34,139 INFO L93 Difference]: Finished difference Result 206 states and 225 transitions. [2023-11-29 01:42:34,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:42:34,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 5 [2023-11-29 01:42:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:34,151 INFO L225 Difference]: With dead ends: 206 [2023-11-29 01:42:34,152 INFO L226 Difference]: Without dead ends: 129 [2023-11-29 01:42:34,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:42:34,160 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 108 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:34,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 268 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:42:34,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-29 01:42:34,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 88. [2023-11-29 01:42:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.6981132075471699) internal successors, (90), 81 states have internal predecessors, (90), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 01:42:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2023-11-29 01:42:34,211 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 5 [2023-11-29 01:42:34,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:34,212 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2023-11-29 01:42:34,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-29 01:42:34,213 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2023-11-29 01:42:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:42:34,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:34,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:42:34,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:42:34,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 01:42:34,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 01:42:34,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:34,418 INFO L85 PathProgramCache]: Analyzing trace with hash -397705632, now seen corresponding path program 1 times [2023-11-29 01:42:34,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:34,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302699081] [2023-11-29 01:42:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:34,453 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:34,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1087537373] [2023-11-29 01:42:34,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:34,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:34,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:34,455 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:34,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:42:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:42:34,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 01:42:34,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:42:34,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:42:34,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:42:34,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 01:42:34,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:42:34,700 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:42:34,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:42:34,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302699081] [2023-11-29 01:42:34,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:42:34,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087537373] [2023-11-29 01:42:34,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087537373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:42:34,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:42:34,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:42:34,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398964559] [2023-11-29 01:42:34,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:42:34,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:42:34,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:42:34,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:42:34,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:42:34,703 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:42:34,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:42:34,925 INFO L93 Difference]: Finished difference Result 129 states and 131 transitions. [2023-11-29 01:42:34,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:42:34,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 01:42:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:42:34,928 INFO L225 Difference]: With dead ends: 129 [2023-11-29 01:42:34,928 INFO L226 Difference]: Without dead ends: 128 [2023-11-29 01:42:34,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:42:34,930 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 103 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:42:34,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 260 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:42:34,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-11-29 01:42:34,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 88. [2023-11-29 01:42:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 53 states have (on average 1.679245283018868) internal successors, (89), 81 states have internal predecessors, (89), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 01:42:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2023-11-29 01:42:34,943 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 6 [2023-11-29 01:42:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:42:34,944 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2023-11-29 01:42:34,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:42:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2023-11-29 01:42:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 01:42:34,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:42:34,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:42:34,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 01:42:35,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:35,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_30_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2023-11-29 01:42:35,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:42:35,146 INFO L85 PathProgramCache]: Analyzing trace with hash 56978242, now seen corresponding path program 1 times [2023-11-29 01:42:35,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:42:35,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352353924] [2023-11-29 01:42:35,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:35,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:42:35,177 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:42:35,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2071543513] [2023-11-29 01:42:35,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:42:35,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:35,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:35,179 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:42:35,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:42:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:42:35,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 01:42:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 01:42:35,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 01:42:35,312 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 01:42:35,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_30_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2023-11-29 01:42:35,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2023-11-29 01:42:35,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2023-11-29 01:42:35,315 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2023-11-29 01:42:35,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2023-11-29 01:42:35,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2023-11-29 01:42:35,316 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2023-11-29 01:42:35,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2023-11-29 01:42:35,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2023-11-29 01:42:35,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2023-11-29 01:42:35,317 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2023-11-29 01:42:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2023-11-29 01:42:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2023-11-29 01:42:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2023-11-29 01:42:35,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2023-11-29 01:42:35,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2023-11-29 01:42:35,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2023-11-29 01:42:35,328 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_30_to_38_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2023-11-29 01:42:35,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2023-11-29 01:42:35,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2023-11-29 01:42:35,329 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2023-11-29 01:42:35,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2023-11-29 01:42:35,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2023-11-29 01:42:35,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2023-11-29 01:42:35,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2023-11-29 01:42:35,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2023-11-29 01:42:35,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2023-11-29 01:42:35,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2023-11-29 01:42:35,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:42:35,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:42:35,540 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 01:42:35,543 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:42:35,560 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:42:35,561 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:42:35,561 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:42:35,561 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:42:35,562 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:42:35,562 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:42:35,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:42:35 BoogieIcfgContainer [2023-11-29 01:42:35,570 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:42:35,571 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:42:35,571 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:42:35,571 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:42:35,571 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:42:33" (3/4) ... [2023-11-29 01:42:35,572 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-29 01:42:35,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:42:35,578 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:42:35,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:42:35,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:42:35,579 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated [2023-11-29 01:42:35,580 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated [2023-11-29 01:42:35,606 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:42:35,607 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:42:35,607 INFO L158 Benchmark]: Toolchain (without parser) took 3242.90ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 109.7MB in the beginning and 135.4MB in the end (delta: -25.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:42:35,608 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:42:35,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.00ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 98.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 01:42:35,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.30ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:42:35,609 INFO L158 Benchmark]: Boogie Preprocessor took 49.01ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:42:35,609 INFO L158 Benchmark]: RCFGBuilder took 494.66ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 102.4MB in the end (delta: -8.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 01:42:35,610 INFO L158 Benchmark]: TraceAbstraction took 2404.33ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 101.1MB in the beginning and 137.5MB in the end (delta: -36.4MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2023-11-29 01:42:35,610 INFO L158 Benchmark]: Witness Printer took 36.11ms. Allocated memory is still 172.0MB. Free memory was 137.5MB in the beginning and 135.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:42:35,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 111.1MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.00ms. Allocated memory is still 142.6MB. Free memory was 109.7MB in the beginning and 98.6MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.30ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 97.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.01ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 494.66ms. Allocated memory is still 142.6MB. Free memory was 94.4MB in the beginning and 102.4MB in the end (delta: -8.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2404.33ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 101.1MB in the beginning and 137.5MB in the end (delta: -36.4MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 36.11ms. Allocated memory is still 172.0MB. Free memory was 137.5MB in the beginning and 135.4MB in the end (delta: 2.1MB). 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~mem4 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~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem5 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~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: 56]: integer overflow possible integer overflow possible We found a FailurePath: [L77] int z; [L78] int k; [L79] int x; [L80] int y; [L81] int c; [L82] z = __VERIFIER_nondet_int() [L83] k = __VERIFIER_nondet_int() [L84] x = 1 [L85] y = 1 [L86] c = 1 [L87] CALL func_to_recursive_line_30_to_38_0(&k, &x, &z, &y, &c) VAL [c={6:0}, k={4:0}, x={7:0}, y={5:0}, z={8:0}] [L56] EXPR \read(*x) [L56] EXPR \read(*z) VAL [c={6:0}, c={6:0}, k={4:0}, k={4:0}, x={7:0}, x={7:0}, y={5:0}, y={5:0}, z={8:0}, z={8:0}] [L56] EXPR (*x) * (*z) VAL [c={6:0}, c={6:0}, k={4:0}, k={4:0}, x={7:0}, x={7:0}, y={5:0}, y={5:0}, z={8:0}, z={8:0}] [L56] 1 + ((*x) * (*z)) VAL [c={6:0}, c={6:0}, k={4:0}, k={4:0}, x={7:0}, x={7:0}, y={5:0}, y={5:0}, z={8:0}, z={8:0}] - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: 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: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 88]: 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, 74 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 212 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 211 mSDsluCounter, 528 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 426 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 208 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 102 mSDtfsCounter, 208 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88occurred in iteration=1, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 81 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 155 SizeOfPredicates, 22 NumberOfNonLiveVariables, 325 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 01:42:35,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca15a43d-9946-4ef9-88cf-f321a37b327f/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)