./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prod4br-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_prod4br-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 96f1211cbeeae798f0ae4041c6e80d5023e7b1c38257b583d7afbb4e6848597b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:13,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:13,962 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:45:13,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:13,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:14,005 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:14,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:14,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:14,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:45:14,016 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:45:14,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:45:14,018 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:45:14,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:14,020 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:14,021 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:14,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:14,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:45:14,022 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:14,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:14,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:14,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:14,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:45:14,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:45:14,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:45:14,025 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:14,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:14,026 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:14,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:14,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:14,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:45:14,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:45:14,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:14,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:14,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:45:14,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:45:14,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:14,031 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:45:14,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:45:14,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:45:14,031 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:45:14,032 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:45:14,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:45:14,032 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_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96f1211cbeeae798f0ae4041c6e80d5023e7b1c38257b583d7afbb4e6848597b [2023-11-26 10:45:14,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:14,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:14,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:14,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:14,389 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:14,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/recursified_nla-digbench/recursified_prod4br-ll.c [2023-11-26 10:45:17,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:17,966 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:17,968 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/sv-benchmarks/c/recursified_nla-digbench/recursified_prod4br-ll.c [2023-11-26 10:45:17,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/data/e0da6ec73/47038254ae074051a630a5b7af32c253/FLAGa4044aafd [2023-11-26 10:45:18,011 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/data/e0da6ec73/47038254ae074051a630a5b7af32c253 [2023-11-26 10:45:18,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:18,023 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:18,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:18,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:18,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:18,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cc71ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18, skipping insertion in model container [2023-11-26 10:45:18,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,076 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:18,264 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/sv-benchmarks/c/recursified_nla-digbench/recursified_prod4br-ll.c[1060,1073] [2023-11-26 10:45:18,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:18,305 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:18,320 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/sv-benchmarks/c/recursified_nla-digbench/recursified_prod4br-ll.c[1060,1073] [2023-11-26 10:45:18,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:18,351 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:18,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18 WrapperNode [2023-11-26 10:45:18,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:18,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:18,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:18,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:18,363 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,397 INFO L138 Inliner]: procedures = 16, calls = 86, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 76 [2023-11-26 10:45:18,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:18,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:18,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:18,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:18,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,416 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,438 INFO L175 MemorySlicer]: Split 57 memory accesses to 7 slices as follows [2, 4, 5, 7, 15, 9, 15]. 26 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 2, 4, 4, 4]. [2023-11-26 10:45:18,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,438 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,450 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,453 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,471 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:18,473 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:18,473 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:18,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:18,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (1/1) ... [2023-11-26 10:45:18,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:18,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:18,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:18,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:45:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:45:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:45:18,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:45:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 10:45:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 10:45:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 10:45:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 10:45:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:45:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:45:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:45:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:45:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 10:45:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 10:45:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 10:45:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 10:45:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:45:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:45:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:45:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 10:45:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 10:45:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 10:45:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 10:45:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_51_0 [2023-11-26 10:45:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_51_0 [2023-11-26 10:45:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 10:45:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 10:45:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:45:18,718 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:18,721 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:19,141 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:19,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:19,190 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:45:19,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:19 BoogieIcfgContainer [2023-11-26 10:45:19,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:19,200 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:45:19,201 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:45:19,205 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:45:19,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:45:18" (1/3) ... [2023-11-26 10:45:19,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fe499c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:19, skipping insertion in model container [2023-11-26 10:45:19,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:18" (2/3) ... [2023-11-26 10:45:19,207 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fe499c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:19, skipping insertion in model container [2023-11-26 10:45:19,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:19" (3/3) ... [2023-11-26 10:45:19,208 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_prod4br-ll.c [2023-11-26 10:45:19,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:45:19,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:45:19,286 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:19,293 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;@107c116f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:19,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:45:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 24 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-26 10:45:19,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:45:19,306 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:19,307 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:19,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:19,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:19,315 INFO L85 PathProgramCache]: Analyzing trace with hash 2057612999, now seen corresponding path program 1 times [2023-11-26 10:45:19,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:19,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759971895] [2023-11-26 10:45:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:19,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:19,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759971895] [2023-11-26 10:45:19,580 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 10:45:19,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262947063] [2023-11-26 10:45:19,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:19,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:19,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:19,588 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:19,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:45:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:19,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:45:19,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:19,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:19,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:45:19,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262947063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:19,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:19,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:19,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235712365] [2023-11-26 10:45:19,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:19,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:45:19,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:19,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:45:19,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:45:19,976 INFO L87 Difference]: Start difference. First operand has 31 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 24 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:20,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:20,017 INFO L93 Difference]: Finished difference Result 60 states and 90 transitions. [2023-11-26 10:45:20,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:45:20,022 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 10:45:20,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:20,032 INFO L225 Difference]: With dead ends: 60 [2023-11-26 10:45:20,032 INFO L226 Difference]: Without dead ends: 29 [2023-11-26 10:45:20,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:45:20,044 INFO L413 NwaCegarLoop]: 39 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, 39 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 [2023-11-26 10:45:20,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:45:20,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-26 10:45:20,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-26 10:45:20,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 23 states have internal predecessors, (30), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 10:45:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2023-11-26 10:45:20,107 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 10 [2023-11-26 10:45:20,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:20,108 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2023-11-26 10:45:20,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2023-11-26 10:45:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-26 10:45:20,111 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:20,111 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:20,119 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-26 10:45:20,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 10:45:20,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:20,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:20,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1557295927, now seen corresponding path program 1 times [2023-11-26 10:45:20,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:20,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269187954] [2023-11-26 10:45:20,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:20,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:20,427 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:45:20,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [709100999] [2023-11-26 10:45:20,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:20,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:20,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:20,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:20,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:45:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:20,662 WARN L260 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-26 10:45:20,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:20,802 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 [2023-11-26 10:45:20,828 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 [2023-11-26 10:45:20,967 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 11 [2023-11-26 10:45:20,981 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 11 [2023-11-26 10:45:21,005 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 [2023-11-26 10:45:21,032 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 [2023-11-26 10:45:21,505 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 19 treesize of output 11 [2023-11-26 10:45:21,511 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 [2023-11-26 10:45:21,521 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 19 treesize of output 11 [2023-11-26 10:45:21,528 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 [2023-11-26 10:45:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:21,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:45:21,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:21,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269187954] [2023-11-26 10:45:21,602 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:45:21,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709100999] [2023-11-26 10:45:21,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709100999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:21,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:21,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 10:45:21,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779057261] [2023-11-26 10:45:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:21,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 10:45:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:21,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 10:45:21,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:45:21,607 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:22,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:22,340 INFO L93 Difference]: Finished difference Result 53 states and 72 transitions. [2023-11-26 10:45:22,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:45:22,348 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-26 10:45:22,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:22,353 INFO L225 Difference]: With dead ends: 53 [2023-11-26 10:45:22,354 INFO L226 Difference]: Without dead ends: 51 [2023-11-26 10:45:22,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:45:22,360 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 40 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:22,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 118 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 10:45:22,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-26 10:45:22,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 41. [2023-11-26 10:45:22,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 32 states have internal predecessors, (41), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-11-26 10:45:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2023-11-26 10:45:22,396 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 10 [2023-11-26 10:45:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:22,397 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2023-11-26 10:45:22,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2023-11-26 10:45:22,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 10:45:22,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:22,401 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:22,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:22,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:22,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:22,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:22,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1474177464, now seen corresponding path program 1 times [2023-11-26 10:45:22,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:22,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154251355] [2023-11-26 10:45:22,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:22,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:22,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:45:22,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020475174] [2023-11-26 10:45:22,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:22,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:22,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:22,668 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:22,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:45:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:22,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-26 10:45:22,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:22,949 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 19 treesize of output 11 [2023-11-26 10:45:22,958 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 [2023-11-26 10:45:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:23,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:45:23,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:23,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154251355] [2023-11-26 10:45:23,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:45:23,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020475174] [2023-11-26 10:45:23,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020475174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:23,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:23,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-26 10:45:23,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300967461] [2023-11-26 10:45:23,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:23,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 10:45:23,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:23,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 10:45:23,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-26 10:45:23,138 INFO L87 Difference]: Start difference. First operand 41 states and 53 transitions. Second operand has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:45:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:23,578 INFO L93 Difference]: Finished difference Result 64 states and 84 transitions. [2023-11-26 10:45:23,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 10:45:23,579 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-26 10:45:23,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:23,583 INFO L225 Difference]: With dead ends: 64 [2023-11-26 10:45:23,583 INFO L226 Difference]: Without dead ends: 52 [2023-11-26 10:45:23,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:45:23,585 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 30 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:23,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 64 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 10:45:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-26 10:45:23,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2023-11-26 10:45:23,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 37 states have internal predecessors, (45), 7 states have call successors, (7), 4 states have call predecessors, (7), 5 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2023-11-26 10:45:23,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2023-11-26 10:45:23,605 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 21 [2023-11-26 10:45:23,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:23,606 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2023-11-26 10:45:23,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:45:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-11-26 10:45:23,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 10:45:23,608 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:23,608 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:23,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:23,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:23,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:23,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:23,817 INFO L85 PathProgramCache]: Analyzing trace with hash -794119094, now seen corresponding path program 1 times [2023-11-26 10:45:23,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:23,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865594728] [2023-11-26 10:45:23,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:23,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:23,864 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:45:23,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045533979] [2023-11-26 10:45:23,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:23,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:23,872 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:23,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:45:24,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:24,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-26 10:45:24,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:24,063 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 [2023-11-26 10:45:24,067 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 [2023-11-26 10:45:24,095 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 11 [2023-11-26 10:45:24,104 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 [2023-11-26 10:45:24,139 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 11 treesize of output 7 [2023-11-26 10:45:24,489 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 7 treesize of output 3 [2023-11-26 10:45:24,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:24,548 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:45:25,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865594728] [2023-11-26 10:45:25,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:45:25,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045533979] [2023-11-26 10:45:25,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045533979] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:45:25,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:45:25,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2023-11-26 10:45:25,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015982572] [2023-11-26 10:45:25,514 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 10:45:25,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 10:45:25,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:25,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 10:45:25,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2023-11-26 10:45:25,518 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:45:26,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:45:26,386 INFO L93 Difference]: Finished difference Result 87 states and 122 transitions. [2023-11-26 10:45:26,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 10:45:26,388 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-11-26 10:45:26,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:45:26,389 INFO L225 Difference]: With dead ends: 87 [2023-11-26 10:45:26,389 INFO L226 Difference]: Without dead ends: 58 [2023-11-26 10:45:26,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=147, Invalid=909, Unknown=0, NotChecked=0, Total=1056 [2023-11-26 10:45:26,392 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 38 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 10:45:26,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 137 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 10:45:26,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-26 10:45:26,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2023-11-26 10:45:26,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 38 states have (on average 1.263157894736842) internal successors, (48), 42 states have internal predecessors, (48), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-26 10:45:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2023-11-26 10:45:26,407 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 21 [2023-11-26 10:45:26,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:45:26,408 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2023-11-26 10:45:26,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 11 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:45:26,408 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2023-11-26 10:45:26,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 10:45:26,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:45:26,409 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:45:26,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-26 10:45:26,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:26,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:45:26,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:26,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1237036607, now seen corresponding path program 1 times [2023-11-26 10:45:26,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:26,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416060364] [2023-11-26 10:45:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:26,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:26,699 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 10:45:26,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352759462] [2023-11-26 10:45:26,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:26,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:26,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:26,707 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:26,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_767c33dd-9599-4002-ba83-e3ba40d8ab60/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:45:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:26,880 WARN L260 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 193 conjunts are in the unsatisfiable core [2023-11-26 10:45:26,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:26,907 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 [2023-11-26 10:45:26,916 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 [2023-11-26 10:45:26,964 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 [2023-11-26 10:45:26,981 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 11 [2023-11-26 10:45:26,990 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 [2023-11-26 10:45:27,005 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 11 [2023-11-26 10:45:28,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2023-11-26 10:45:28,143 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2023-11-26 10:45:28,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-26 10:45:28,690 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 30 treesize of output 18 [2023-11-26 10:45:28,698 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 [2023-11-26 10:45:28,712 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 21 treesize of output 13 [2023-11-26 10:45:28,719 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 26 treesize of output 14 [2023-11-26 10:45:28,897 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:28,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:45:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:45:31,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416060364] [2023-11-26 10:45:31,821 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 10:45:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352759462] [2023-11-26 10:45:31,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352759462] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:45:31,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:45:31,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 27 [2023-11-26 10:45:31,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972123066] [2023-11-26 10:45:31,823 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:45:31,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-11-26 10:45:31,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:31,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-11-26 10:45:31,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=614, Unknown=0, NotChecked=0, Total=702 [2023-11-26 10:45:31,826 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 27 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 20 states have internal predecessors, (35), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:45:41,160 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int#2| c_func_to_recursive_line_0_to_51_0_~y.base)) (.cse1 (select |c_#memory_int#1| c_func_to_recursive_line_0_to_51_0_~x.base)) (.cse0 (select |c_#memory_int#5| c_func_to_recursive_line_0_to_51_0_~q.base)) (.cse2 (select |c_#memory_int#6| c_func_to_recursive_line_0_to_51_0_~a.base)) (.cse4 (select |c_#memory_int#4| c_func_to_recursive_line_0_to_51_0_~b.base)) (.cse14 (select |c_#memory_int#3| c_func_to_recursive_line_0_to_51_0_~p.base))) (and (= |c_func_to_recursive_line_0_to_51_0_#in~a.offset| 0) (= (select .cse0 0) 0) (= c_func_to_recursive_line_0_to_51_0_~a.offset 0) (= |c_func_to_recursive_line_0_to_51_0_#in~y.offset| 0) (= c_func_to_recursive_line_0_to_51_0_~y.offset 0) (= c_func_to_recursive_line_0_to_51_0_~q.offset 0) (= |c_func_to_recursive_line_0_to_51_0_#in~b.offset| 0) (= (select (select |c_#memory_int#3| |c_func_to_recursive_line_0_to_51_0_#in~p.base|) 0) 1) (= |c_func_to_recursive_line_0_to_51_0_#in~q.offset| 0) (= (select (select |c_#memory_int#6| |c_func_to_recursive_line_0_to_51_0_#in~a.base|) 0) (select (select |c_#memory_int#1| |c_func_to_recursive_line_0_to_51_0_#in~x.base|) 0)) (= |c_func_to_recursive_line_0_to_51_0_#in~x.offset| 0) (= (select (select |c_#memory_int#4| |c_func_to_recursive_line_0_to_51_0_#in~b.base|) 0) (select (select |c_#memory_int#2| |c_func_to_recursive_line_0_to_51_0_#in~y.base|) 0)) (= c_func_to_recursive_line_0_to_51_0_~b.offset 0) (= c_func_to_recursive_line_0_to_51_0_~x.offset 0) (= (select .cse1 0) (select .cse2 0)) (= (select .cse3 0) (select .cse4 0)) (= c_func_to_recursive_line_0_to_51_0_~p.offset 0) (= 0 (select (select |c_#memory_int#5| |c_func_to_recursive_line_0_to_51_0_#in~q.base|) 0)) (= |c_func_to_recursive_line_0_to_51_0_#in~p.offset| 0) (let ((.cse13 (select .cse4 c_func_to_recursive_line_0_to_51_0_~b.offset))) (or (let ((.cse6 (select .cse14 c_func_to_recursive_line_0_to_51_0_~p.offset)) (.cse7 (div .cse13 2)) (.cse12 (select .cse2 c_func_to_recursive_line_0_to_51_0_~a.offset))) (let ((.cse5 (select .cse0 c_func_to_recursive_line_0_to_51_0_~q.offset)) (.cse8 (* 4 (* .cse6 .cse7 (div .cse12 2)))) (.cse9 (* (select .cse3 c_func_to_recursive_line_0_to_51_0_~y.offset) (select .cse1 c_func_to_recursive_line_0_to_51_0_~x.offset))) (.cse10 (= (mod .cse12 2) 0)) (.cse11 (+ .cse12 1))) (and (or (= (+ .cse5 (* 4 (* .cse6 .cse7)) .cse8) .cse9) .cse10 (< 0 .cse11)) (or (= (+ .cse5 .cse8) .cse9) (and (not .cse10) (<= .cse11 0)))))) (not |c_func_to_recursive_line_0_to_51_0_#t~short15|) (not (= (mod .cse13 2) 0)))) (= (select .cse14 0) 1))) is different from false [2023-11-26 10:45:49,201 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse16 (select |c_#memory_int#1| c_func_to_recursive_line_0_to_51_0_~x.base)) (.cse15 (select |c_#memory_int#2| c_func_to_recursive_line_0_to_51_0_~y.base))) (let ((.cse2 (select .cse15 0)) (.cse4 (select (select |c_#memory_int#1| |c_func_to_recursive_line_0_to_51_0_#in~x.base|) 0)) (.cse1 (select (select |c_#memory_int#2| |c_func_to_recursive_line_0_to_51_0_#in~y.base|) 0)) (.cse0 (select |c_#memory_int#5| c_func_to_recursive_line_0_to_51_0_~q.base)) (.cse5 (select |c_#memory_int#6| c_func_to_recursive_line_0_to_51_0_~a.base)) (.cse3 (select |c_#memory_int#4| c_func_to_recursive_line_0_to_51_0_~b.base)) (.cse6 (select .cse16 0)) (.cse18 (select |c_#memory_int#3| c_func_to_recursive_line_0_to_51_0_~p.base))) (and (= |c_func_to_recursive_line_0_to_51_0_#in~a.offset| 0) (= (select .cse0 0) 0) (= c_func_to_recursive_line_0_to_51_0_~a.offset 0) (= |c_func_to_recursive_line_0_to_51_0_#in~y.offset| 0) (= (mod .cse1 2) 0) (= c_func_to_recursive_line_0_to_51_0_~y.offset 0) (= c_func_to_recursive_line_0_to_51_0_~q.offset 0) (= |c_func_to_recursive_line_0_to_51_0_#in~b.offset| 0) (= |c_func_to_recursive_line_0_to_51_0_#in~q.offset| 0) (= (mod .cse2 2) 0) (= |c_func_to_recursive_line_0_to_51_0_#in~x.offset| 0) (= (div .cse2 2) (select .cse3 0)) (= (div .cse4 2) (select (select |c_#memory_int#6| |c_func_to_recursive_line_0_to_51_0_#in~a.base|) 0)) (= (mod .cse4 2) 0) (= 4 (select (select |c_#memory_int#3| |c_func_to_recursive_line_0_to_51_0_#in~p.base|) 0)) (= c_func_to_recursive_line_0_to_51_0_~b.offset 0) (= c_func_to_recursive_line_0_to_51_0_~x.offset 0) (= (select (select |c_#memory_int#4| |c_func_to_recursive_line_0_to_51_0_#in~b.base|) 0) (div .cse1 2)) (= c_func_to_recursive_line_0_to_51_0_~p.offset 0) (= 0 (select (select |c_#memory_int#5| |c_func_to_recursive_line_0_to_51_0_#in~q.base|) 0)) (= |c_func_to_recursive_line_0_to_51_0_#in~p.offset| 0) (= (select .cse5 0) (div .cse6 2)) (let ((.cse17 (select .cse3 c_func_to_recursive_line_0_to_51_0_~b.offset))) (or (let ((.cse8 (select .cse18 c_func_to_recursive_line_0_to_51_0_~p.offset)) (.cse9 (div .cse17 2)) (.cse14 (select .cse5 c_func_to_recursive_line_0_to_51_0_~a.offset))) (let ((.cse7 (select .cse0 c_func_to_recursive_line_0_to_51_0_~q.offset)) (.cse10 (* 4 (* .cse8 .cse9 (div .cse14 2)))) (.cse11 (* (select .cse15 c_func_to_recursive_line_0_to_51_0_~y.offset) (select .cse16 c_func_to_recursive_line_0_to_51_0_~x.offset))) (.cse12 (= (mod .cse14 2) 0)) (.cse13 (+ .cse14 1))) (and (or (= (+ .cse7 (* 4 (* .cse8 .cse9)) .cse10) .cse11) .cse12 (< 0 .cse13)) (or (= (+ .cse7 .cse10) .cse11) (and (not .cse12) (<= .cse13 0)))))) (not |c_func_to_recursive_line_0_to_51_0_#t~short15|) (not (= (mod .cse17 2) 0)))) (= (mod .cse6 2) 0) (= (select .cse18 0) 4)))) is different from false