./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ --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 ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:30:23,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:30:23,694 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:30:23,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:30:23,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:30:23,726 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:30:23,727 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:30:23,727 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:30:23,728 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:30:23,729 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:30:23,730 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:30:23,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:30:23,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:30:23,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:30:23,733 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:30:23,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:30:23,735 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:30:23,735 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:30:23,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:30:23,737 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:30:23,737 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:30:23,738 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:30:23,739 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:30:23,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:30:23,740 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:30:23,741 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:30:23,741 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:30:23,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:30:23,742 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:30:23,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:30:23,744 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:30:23,744 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:30:23,745 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:30:23,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:23,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:30:23,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:30:23,746 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:30:23,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:30:23,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:30:23,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:30:23,748 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:30:23,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:30:23,749 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:30:23,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:30:23,749 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_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee90c95792b81649f087e170ece38fbab8d5281ca8435570782565b7b775a87f [2023-11-23 22:30:24,053 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:30:24,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:30:24,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:30:24,096 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:30:24,097 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:30:24,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-23 22:30:27,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:30:27,907 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:30:27,911 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-1.i [2023-11-23 22:30:27,933 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/data/62db1ee59/7c3cd197599946a7a0fe5eef126a3b2f/FLAGc7997cf6f [2023-11-23 22:30:27,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/data/62db1ee59/7c3cd197599946a7a0fe5eef126a3b2f [2023-11-23 22:30:27,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:30:27,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:30:27,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:27,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:30:27,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:30:27,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:27" (1/1) ... [2023-11-23 22:30:27,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d0238ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:27, skipping insertion in model container [2023-11-23 22:30:27,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:30:27" (1/1) ... [2023-11-23 22:30:28,059 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:30:28,451 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:30:28,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:28,901 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:30:28,932 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:30:29,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:30:29,113 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:30:29,121 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:30:29,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29 WrapperNode [2023-11-23 22:30:29,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:30:29,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:29,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:30:29,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:30:29,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,370 INFO L138 Inliner]: procedures = 178, calls = 341, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1464 [2023-11-23 22:30:29,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:30:29,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:30:29,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:30:29,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:30:29,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,397 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,568 INFO L189 HeapSplitter]: Split 319 memory accesses to 5 slices as follows [2, 5, 5, 0, 307] [2023-11-23 22:30:29,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,646 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:30:29,741 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:30:29,743 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:30:29,743 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:30:29,744 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (1/1) ... [2023-11-23 22:30:29,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:30:29,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:29,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:30:29,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:30:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:30:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:30:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:30:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:30:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:30:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:30:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:30:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:30:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:30:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:30:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 22:30:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 22:30:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 22:30:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 22:30:29,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-23 22:30:29,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 22:30:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 22:30:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 22:30:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 22:30:29,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-23 22:30:29,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:30:29,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:30:29,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:30:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 22:30:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 22:30:29,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 22:30:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 22:30:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 22:30:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 22:30:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 22:30:29,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 22:30:29,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 22:30:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 22:30:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:30:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:30:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:30:29,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:30:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:30:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:30:29,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:30:29,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:30:30,127 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:30:30,130 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:30:31,974 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:30:32,019 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:30:32,020 INFO L309 CfgBuilder]: Removed 60 assume(true) statements. [2023-11-23 22:30:32,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:32 BoogieIcfgContainer [2023-11-23 22:30:32,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:30:32,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:30:32,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:30:32,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:30:32,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:30:27" (1/3) ... [2023-11-23 22:30:32,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a38fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:30:32, skipping insertion in model container [2023-11-23 22:30:32,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:30:29" (2/3) ... [2023-11-23 22:30:32,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a38fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:30:32, skipping insertion in model container [2023-11-23 22:30:32,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:30:32" (3/3) ... [2023-11-23 22:30:32,031 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-1.i [2023-11-23 22:30:32,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:30:32,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-23 22:30:32,126 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:30:32,133 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;@2cc527a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:30:32,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-23 22:30:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 364 states, 352 states have (on average 1.6988636363636365) internal successors, (598), 356 states have internal predecessors, (598), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 22:30:32,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:32,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 22:30:32,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:32,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:32,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1842791768, now seen corresponding path program 1 times [2023-11-23 22:30:32,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:32,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473648980] [2023-11-23 22:30:32,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:32,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:32,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:32,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473648980] [2023-11-23 22:30:32,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473648980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:32,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:32,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:30:32,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108413805] [2023-11-23 22:30:32,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:32,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:30:32,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:30:32,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:30:32,437 INFO L87 Difference]: Start difference. First operand has 364 states, 352 states have (on average 1.6988636363636365) internal successors, (598), 356 states have internal predecessors, (598), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:32,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:32,568 INFO L93 Difference]: Finished difference Result 724 states and 1216 transitions. [2023-11-23 22:30:32,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:30:32,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-23 22:30:32,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:32,587 INFO L225 Difference]: With dead ends: 724 [2023-11-23 22:30:32,587 INFO L226 Difference]: Without dead ends: 352 [2023-11-23 22:30:32,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:30:32,598 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:32,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:30:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-11-23 22:30:32,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2023-11-23 22:30:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 342 states have (on average 1.5029239766081872) internal successors, (514), 344 states have internal predecessors, (514), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:32,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 526 transitions. [2023-11-23 22:30:32,705 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 526 transitions. Word has length 6 [2023-11-23 22:30:32,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:32,706 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 526 transitions. [2023-11-23 22:30:32,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:32,707 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 526 transitions. [2023-11-23 22:30:32,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 22:30:32,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:32,708 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:32,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:30:32,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:32,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:32,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1292029638, now seen corresponding path program 1 times [2023-11-23 22:30:32,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:32,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965874483] [2023-11-23 22:30:32,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:32,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:32,736 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:32,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523987193] [2023-11-23 22:30:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:32,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:32,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:32,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:32,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:30:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:32,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:30:32,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:33,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:33,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:33,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:33,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965874483] [2023-11-23 22:30:33,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:33,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523987193] [2023-11-23 22:30:33,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523987193] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:33,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:33,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:30:33,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668802703] [2023-11-23 22:30:33,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:33,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:30:33,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:30:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:33,034 INFO L87 Difference]: Start difference. First operand 352 states and 526 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:33,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:33,128 INFO L93 Difference]: Finished difference Result 699 states and 1047 transitions. [2023-11-23 22:30:33,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:30:33,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-23 22:30:33,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:33,139 INFO L225 Difference]: With dead ends: 699 [2023-11-23 22:30:33,140 INFO L226 Difference]: Without dead ends: 698 [2023-11-23 22:30:33,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:33,145 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 503 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:33,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1039 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:30:33,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-11-23 22:30:33,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 357. [2023-11-23 22:30:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 347 states have (on average 1.4956772334293948) internal successors, (519), 349 states have internal predecessors, (519), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 531 transitions. [2023-11-23 22:30:33,200 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 531 transitions. Word has length 7 [2023-11-23 22:30:33,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:33,200 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 531 transitions. [2023-11-23 22:30:33,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 531 transitions. [2023-11-23 22:30:33,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 22:30:33,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:33,211 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:33,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:33,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:33,432 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:33,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:33,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1998559900, now seen corresponding path program 1 times [2023-11-23 22:30:33,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:33,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554136650] [2023-11-23 22:30:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:33,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:33,583 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:33,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299771139] [2023-11-23 22:30:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:33,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:33,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:33,585 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:33,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:30:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:34,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:30:34,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:34,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:34,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:34,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554136650] [2023-11-23 22:30:34,139 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:34,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299771139] [2023-11-23 22:30:34,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299771139] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:34,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:34,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:30:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906540997] [2023-11-23 22:30:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:34,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:30:34,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:34,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:30:34,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:34,144 INFO L87 Difference]: Start difference. First operand 357 states and 531 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:34,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:34,252 INFO L93 Difference]: Finished difference Result 728 states and 1086 transitions. [2023-11-23 22:30:34,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:30:34,253 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-23 22:30:34,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:34,256 INFO L225 Difference]: With dead ends: 728 [2023-11-23 22:30:34,257 INFO L226 Difference]: Without dead ends: 378 [2023-11-23 22:30:34,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:34,259 INFO L413 NwaCegarLoop]: 504 mSDtfsCounter, 9 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:34,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 994 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:34,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-23 22:30:34,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2023-11-23 22:30:34,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 367 states have (on average 1.4686648501362398) internal successors, (539), 369 states have internal predecessors, (539), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 551 transitions. [2023-11-23 22:30:34,279 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 551 transitions. Word has length 151 [2023-11-23 22:30:34,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:34,280 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 551 transitions. [2023-11-23 22:30:34,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:34,280 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 551 transitions. [2023-11-23 22:30:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 22:30:34,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:34,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:34,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:34,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:34,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:34,502 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:34,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1453687326, now seen corresponding path program 1 times [2023-11-23 22:30:34,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:34,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478770948] [2023-11-23 22:30:34,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:34,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:34,640 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:34,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1741148904] [2023-11-23 22:30:34,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:34,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:34,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:34,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:34,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 22:30:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:35,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:30:35,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:35,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:35,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:35,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478770948] [2023-11-23 22:30:35,234 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:35,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741148904] [2023-11-23 22:30:35,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741148904] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:35,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:35,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:30:35,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187798049] [2023-11-23 22:30:35,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:35,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:30:35,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:35,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:30:35,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:35,238 INFO L87 Difference]: Start difference. First operand 377 states and 551 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:35,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:35,348 INFO L93 Difference]: Finished difference Result 768 states and 1126 transitions. [2023-11-23 22:30:35,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:30:35,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-23 22:30:35,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:35,357 INFO L225 Difference]: With dead ends: 768 [2023-11-23 22:30:35,357 INFO L226 Difference]: Without dead ends: 398 [2023-11-23 22:30:35,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:35,362 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 8 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:35,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 996 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:35,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-11-23 22:30:35,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2023-11-23 22:30:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 387 states have (on average 1.4444444444444444) internal successors, (559), 389 states have internal predecessors, (559), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:35,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 571 transitions. [2023-11-23 22:30:35,382 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 571 transitions. Word has length 151 [2023-11-23 22:30:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:35,389 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 571 transitions. [2023-11-23 22:30:35,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 571 transitions. [2023-11-23 22:30:35,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 22:30:35,393 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:35,394 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:35,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:35,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:35,617 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:35,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:35,618 INFO L85 PathProgramCache]: Analyzing trace with hash -972607068, now seen corresponding path program 1 times [2023-11-23 22:30:35,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:35,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390073370] [2023-11-23 22:30:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:35,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:35,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:35,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133898338] [2023-11-23 22:30:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:35,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:35,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:35,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:35,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 22:30:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:36,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:30:36,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:36,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:36,239 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:36,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:36,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390073370] [2023-11-23 22:30:36,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:36,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133898338] [2023-11-23 22:30:36,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133898338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:36,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:36,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:30:36,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917442039] [2023-11-23 22:30:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:36,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:30:36,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:36,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:30:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:36,243 INFO L87 Difference]: Start difference. First operand 397 states and 571 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:36,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:36,350 INFO L93 Difference]: Finished difference Result 774 states and 1122 transitions. [2023-11-23 22:30:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:36,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-23 22:30:36,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:36,353 INFO L225 Difference]: With dead ends: 774 [2023-11-23 22:30:36,353 INFO L226 Difference]: Without dead ends: 384 [2023-11-23 22:30:36,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:36,355 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 165 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:36,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1339 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:36,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-11-23 22:30:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2023-11-23 22:30:36,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 373 states have (on average 1.4423592493297588) internal successors, (538), 375 states have internal predecessors, (538), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 550 transitions. [2023-11-23 22:30:36,368 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 550 transitions. Word has length 151 [2023-11-23 22:30:36,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:36,368 INFO L495 AbstractCegarLoop]: Abstraction has 383 states and 550 transitions. [2023-11-23 22:30:36,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:36,369 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 550 transitions. [2023-11-23 22:30:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 22:30:36,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:36,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:36,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:36,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:36,602 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:36,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:36,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1439128242, now seen corresponding path program 1 times [2023-11-23 22:30:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:36,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842307513] [2023-11-23 22:30:36,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:36,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:36,716 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:36,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [591030848] [2023-11-23 22:30:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:36,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:36,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:36,721 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:36,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 22:30:37,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:37,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:30:37,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:37,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:37,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:37,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:37,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842307513] [2023-11-23 22:30:37,242 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:37,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591030848] [2023-11-23 22:30:37,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591030848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:37,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:37,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:30:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813237969] [2023-11-23 22:30:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:37,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:30:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:37,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:30:37,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:37,245 INFO L87 Difference]: Start difference. First operand 383 states and 550 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:37,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:37,332 INFO L93 Difference]: Finished difference Result 746 states and 1080 transitions. [2023-11-23 22:30:37,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:37,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-23 22:30:37,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:37,335 INFO L225 Difference]: With dead ends: 746 [2023-11-23 22:30:37,335 INFO L226 Difference]: Without dead ends: 370 [2023-11-23 22:30:37,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:37,337 INFO L413 NwaCegarLoop]: 490 mSDtfsCounter, 152 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:37,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1318 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:37,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-23 22:30:37,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2023-11-23 22:30:37,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 359 states have (on average 1.4401114206128134) internal successors, (517), 361 states have internal predecessors, (517), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:37,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 529 transitions. [2023-11-23 22:30:37,349 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 529 transitions. Word has length 151 [2023-11-23 22:30:37,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:37,349 INFO L495 AbstractCegarLoop]: Abstraction has 369 states and 529 transitions. [2023-11-23 22:30:37,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 5 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:37,350 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 529 transitions. [2023-11-23 22:30:37,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-23 22:30:37,352 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:37,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:37,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:37,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:37,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:37,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2008267942, now seen corresponding path program 1 times [2023-11-23 22:30:37,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634332896] [2023-11-23 22:30:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:37,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:37,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:37,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1057711775] [2023-11-23 22:30:37,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:37,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:37,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:37,686 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:37,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 22:30:38,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:38,173 INFO L262 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:30:38,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:38,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:38,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:38,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634332896] [2023-11-23 22:30:38,422 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:38,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057711775] [2023-11-23 22:30:38,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057711775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:38,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:38,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:30:38,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857282897] [2023-11-23 22:30:38,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:38,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:30:38,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:38,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:30:38,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:38,425 INFO L87 Difference]: Start difference. First operand 369 states and 529 transitions. Second operand has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:38,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:38,468 INFO L93 Difference]: Finished difference Result 369 states and 529 transitions. [2023-11-23 22:30:38,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:38,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 151 [2023-11-23 22:30:38,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:38,471 INFO L225 Difference]: With dead ends: 369 [2023-11-23 22:30:38,472 INFO L226 Difference]: Without dead ends: 368 [2023-11-23 22:30:38,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:38,473 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 348 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:38,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1008 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:30:38,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2023-11-23 22:30:38,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2023-11-23 22:30:38,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 359 states have (on average 1.4373259052924792) internal successors, (516), 360 states have internal predecessors, (516), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 22:30:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 528 transitions. [2023-11-23 22:30:38,487 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 528 transitions. Word has length 151 [2023-11-23 22:30:38,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:38,488 INFO L495 AbstractCegarLoop]: Abstraction has 368 states and 528 transitions. [2023-11-23 22:30:38,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:38,488 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 528 transitions. [2023-11-23 22:30:38,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 22:30:38,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:38,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:38,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:38,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:38,705 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:38,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2126765560, now seen corresponding path program 1 times [2023-11-23 22:30:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:38,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959711053] [2023-11-23 22:30:38,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:38,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:38,808 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:38,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1161973506] [2023-11-23 22:30:38,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:38,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:38,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:38,810 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:38,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 22:30:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:39,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 22:30:39,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:39,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:39,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:39,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:39,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959711053] [2023-11-23 22:30:39,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:39,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161973506] [2023-11-23 22:30:39,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161973506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:39,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:39,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:30:39,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006824494] [2023-11-23 22:30:39,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:39,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:30:39,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:39,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:30:39,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:39,556 INFO L87 Difference]: Start difference. First operand 368 states and 528 transitions. Second operand has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:39,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:39,635 INFO L93 Difference]: Finished difference Result 720 states and 1040 transitions. [2023-11-23 22:30:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:39,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-11-23 22:30:39,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:39,640 INFO L225 Difference]: With dead ends: 720 [2023-11-23 22:30:39,640 INFO L226 Difference]: Without dead ends: 719 [2023-11-23 22:30:39,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:39,641 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 344 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:39,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1584 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:30:39,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2023-11-23 22:30:39,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2023-11-23 22:30:39,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 704 states have (on average 1.4417613636363635) internal successors, (1015), 705 states have internal predecessors, (1015), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:30:39,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1039 transitions. [2023-11-23 22:30:39,670 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1039 transitions. Word has length 152 [2023-11-23 22:30:39,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:39,671 INFO L495 AbstractCegarLoop]: Abstraction has 719 states and 1039 transitions. [2023-11-23 22:30:39,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:39,671 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1039 transitions. [2023-11-23 22:30:39,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-23 22:30:39,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:39,674 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:39,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:39,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:39,889 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:39,889 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:39,889 INFO L85 PathProgramCache]: Analyzing trace with hash 237517153, now seen corresponding path program 1 times [2023-11-23 22:30:39,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:39,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363193493] [2023-11-23 22:30:39,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:39,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:40,012 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:40,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1856130938] [2023-11-23 22:30:40,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:40,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:40,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:40,017 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:40,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 22:30:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:40,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:30:40,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:30:41,136 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:41,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:41,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363193493] [2023-11-23 22:30:41,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:41,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856130938] [2023-11-23 22:30:41,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856130938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:41,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:41,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:30:41,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190043259] [2023-11-23 22:30:41,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:41,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:30:41,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:41,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:30:41,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:41,140 INFO L87 Difference]: Start difference. First operand 719 states and 1039 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:41,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:41,206 INFO L93 Difference]: Finished difference Result 1131 states and 1629 transitions. [2023-11-23 22:30:41,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:30:41,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2023-11-23 22:30:41,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:41,214 INFO L225 Difference]: With dead ends: 1131 [2023-11-23 22:30:41,214 INFO L226 Difference]: Without dead ends: 717 [2023-11-23 22:30:41,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:41,216 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 294 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:41,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 1001 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:30:41,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-11-23 22:30:41,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 717. [2023-11-23 22:30:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 702 states have (on average 1.4415954415954415) internal successors, (1012), 703 states have internal predecessors, (1012), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:30:41,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1036 transitions. [2023-11-23 22:30:41,277 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1036 transitions. Word has length 157 [2023-11-23 22:30:41,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:41,278 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 1036 transitions. [2023-11-23 22:30:41,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:30:41,278 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1036 transitions. [2023-11-23 22:30:41,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-23 22:30:41,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:41,281 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:41,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:41,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:41,506 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:41,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:41,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1461459717, now seen corresponding path program 1 times [2023-11-23 22:30:41,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:41,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226039362] [2023-11-23 22:30:41,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:41,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:41,595 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95471205] [2023-11-23 22:30:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:41,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:41,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:41,597 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:41,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 22:30:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:42,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 22:30:42,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 22:30:42,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:42,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:42,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226039362] [2023-11-23 22:30:42,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:42,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95471205] [2023-11-23 22:30:42,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95471205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:42,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:42,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:30:42,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263259578] [2023-11-23 22:30:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:42,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:30:42,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:42,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:30:42,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:42,428 INFO L87 Difference]: Start difference. First operand 717 states and 1036 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:30:42,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:42,514 INFO L93 Difference]: Finished difference Result 1301 states and 1877 transitions. [2023-11-23 22:30:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:30:42,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2023-11-23 22:30:42,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:42,521 INFO L225 Difference]: With dead ends: 1301 [2023-11-23 22:30:42,522 INFO L226 Difference]: Without dead ends: 715 [2023-11-23 22:30:42,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:30:42,524 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 123 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:42,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1001 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:42,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-11-23 22:30:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 715. [2023-11-23 22:30:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 700 states have (on average 1.4414285714285715) internal successors, (1009), 701 states have internal predecessors, (1009), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:30:42,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1033 transitions. [2023-11-23 22:30:42,554 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1033 transitions. Word has length 170 [2023-11-23 22:30:42,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:42,555 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 1033 transitions. [2023-11-23 22:30:42,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 2 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 22:30:42,555 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1033 transitions. [2023-11-23 22:30:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-23 22:30:42,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:42,558 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:42,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:42,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 22:30:42,777 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:42,777 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:42,777 INFO L85 PathProgramCache]: Analyzing trace with hash -429149569, now seen corresponding path program 1 times [2023-11-23 22:30:42,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:42,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123201648] [2023-11-23 22:30:42,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:42,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:42,894 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:42,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876547494] [2023-11-23 22:30:42,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:42,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:42,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:42,895 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:42,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 22:30:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:43,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-23 22:30:43,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:43,713 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 [2023-11-23 22:30:43,735 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 21 treesize of output 20 [2023-11-23 22:30:44,273 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 22:30:44,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 54 treesize of output 26 [2023-11-23 22:30:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 22:30:44,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:44,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:44,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123201648] [2023-11-23 22:30:44,482 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:44,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876547494] [2023-11-23 22:30:44,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876547494] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:44,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:44,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-23 22:30:44,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989232871] [2023-11-23 22:30:44,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:44,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-23 22:30:44,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:44,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-23 22:30:44,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-23 22:30:44,487 INFO L87 Difference]: Start difference. First operand 715 states and 1033 transitions. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:30:47,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:30:48,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:48,886 INFO L93 Difference]: Finished difference Result 1388 states and 1997 transitions. [2023-11-23 22:30:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 22:30:48,887 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 183 [2023-11-23 22:30:48,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:48,892 INFO L225 Difference]: With dead ends: 1388 [2023-11-23 22:30:48,892 INFO L226 Difference]: Without dead ends: 756 [2023-11-23 22:30:48,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-23 22:30:48,894 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 951 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:48,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [956 Valid, 3283 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-23 22:30:48,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2023-11-23 22:30:48,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 747. [2023-11-23 22:30:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 732 states have (on average 1.4289617486338797) internal successors, (1046), 733 states have internal predecessors, (1046), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:30:48,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1070 transitions. [2023-11-23 22:30:48,933 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1070 transitions. Word has length 183 [2023-11-23 22:30:48,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:48,934 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 1070 transitions. [2023-11-23 22:30:48,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:30:48,935 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1070 transitions. [2023-11-23 22:30:48,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-23 22:30:48,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:48,938 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:48,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:49,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:49,153 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:49,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:49,154 INFO L85 PathProgramCache]: Analyzing trace with hash -84321407, now seen corresponding path program 1 times [2023-11-23 22:30:49,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:49,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833794086] [2023-11-23 22:30:49,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:49,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:49,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:49,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463816801] [2023-11-23 22:30:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:49,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:49,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:49,269 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:49,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 22:30:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:49,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 22:30:49,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:49,973 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 22:30:49,973 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:49,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:49,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833794086] [2023-11-23 22:30:49,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:49,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463816801] [2023-11-23 22:30:49,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463816801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:49,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:49,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:30:49,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222440698] [2023-11-23 22:30:49,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:49,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:30:49,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:49,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:30:49,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:49,977 INFO L87 Difference]: Start difference. First operand 747 states and 1070 transitions. Second operand has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:30:50,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:50,146 INFO L93 Difference]: Finished difference Result 1579 states and 2300 transitions. [2023-11-23 22:30:50,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:30:50,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 183 [2023-11-23 22:30:50,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:50,152 INFO L225 Difference]: With dead ends: 1579 [2023-11-23 22:30:50,152 INFO L226 Difference]: Without dead ends: 935 [2023-11-23 22:30:50,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:50,154 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 142 mSDsluCounter, 1452 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:50,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 1946 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2023-11-23 22:30:50,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 770. [2023-11-23 22:30:50,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 755 states have (on average 1.414569536423841) internal successors, (1068), 756 states have internal predecessors, (1068), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:30:50,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1092 transitions. [2023-11-23 22:30:50,189 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1092 transitions. Word has length 183 [2023-11-23 22:30:50,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:50,189 INFO L495 AbstractCegarLoop]: Abstraction has 770 states and 1092 transitions. [2023-11-23 22:30:50,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.8) internal successors, (169), 5 states have internal predecessors, (169), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:30:50,189 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1092 transitions. [2023-11-23 22:30:50,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-11-23 22:30:50,193 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:50,193 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:50,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:50,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:50,421 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:50,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1599937530, now seen corresponding path program 1 times [2023-11-23 22:30:50,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:50,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159826285] [2023-11-23 22:30:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:50,535 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:50,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1679567707] [2023-11-23 22:30:50,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:50,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:50,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:50,537 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:50,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 22:30:51,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:51,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-23 22:30:51,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 22:30:51,393 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:51,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:51,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159826285] [2023-11-23 22:30:51,393 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:51,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679567707] [2023-11-23 22:30:51,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679567707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:51,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:51,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:30:51,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667115284] [2023-11-23 22:30:51,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:51,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:30:51,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:51,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:30:51,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:51,396 INFO L87 Difference]: Start difference. First operand 770 states and 1092 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:30:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:51,657 INFO L93 Difference]: Finished difference Result 1448 states and 2066 transitions. [2023-11-23 22:30:51,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:30:51,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2023-11-23 22:30:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:51,663 INFO L225 Difference]: With dead ends: 1448 [2023-11-23 22:30:51,663 INFO L226 Difference]: Without dead ends: 793 [2023-11-23 22:30:51,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:30:51,665 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 15 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:51,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1339 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:30:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-11-23 22:30:51,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 781. [2023-11-23 22:30:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 766 states have (on average 1.4099216710182767) internal successors, (1080), 767 states have internal predecessors, (1080), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-23 22:30:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1104 transitions. [2023-11-23 22:30:51,698 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1104 transitions. Word has length 184 [2023-11-23 22:30:51,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:51,699 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1104 transitions. [2023-11-23 22:30:51,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-23 22:30:51,699 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1104 transitions. [2023-11-23 22:30:51,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-11-23 22:30:51,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:51,703 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:51,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:51,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:51,917 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:51,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:51,917 INFO L85 PathProgramCache]: Analyzing trace with hash -165924872, now seen corresponding path program 1 times [2023-11-23 22:30:51,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519357949] [2023-11-23 22:30:51,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:51,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:52,013 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:52,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [719249920] [2023-11-23 22:30:52,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:52,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:52,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:52,015 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:52,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 22:30:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:53,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 22:30:53,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:53,101 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 22:30:53,101 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:53,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:53,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519357949] [2023-11-23 22:30:53,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:53,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719249920] [2023-11-23 22:30:53,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719249920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:53,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:53,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:30:53,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926313299] [2023-11-23 22:30:53,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:53,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:30:53,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:53,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:30:53,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:30:53,105 INFO L87 Difference]: Start difference. First operand 781 states and 1104 transitions. Second operand has 5 states, 4 states have (on average 43.75) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:30:53,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:53,267 INFO L93 Difference]: Finished difference Result 1406 states and 2002 transitions. [2023-11-23 22:30:53,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:30:53,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 43.75) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 185 [2023-11-23 22:30:53,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:53,275 INFO L225 Difference]: With dead ends: 1406 [2023-11-23 22:30:53,276 INFO L226 Difference]: Without dead ends: 783 [2023-11-23 22:30:53,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:30:53,278 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 486 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:53,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1994 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 22:30:53,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-11-23 22:30:53,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2023-11-23 22:30:53,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 767 states have (on average 1.410691003911343) internal successors, (1082), 769 states have internal predecessors, (1082), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-23 22:30:53,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1110 transitions. [2023-11-23 22:30:53,319 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1110 transitions. Word has length 185 [2023-11-23 22:30:53,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:53,319 INFO L495 AbstractCegarLoop]: Abstraction has 783 states and 1110 transitions. [2023-11-23 22:30:53,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 43.75) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:30:53,320 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1110 transitions. [2023-11-23 22:30:53,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-11-23 22:30:53,323 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:53,324 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:53,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:53,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 22:30:53,537 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:53,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:53,537 INFO L85 PathProgramCache]: Analyzing trace with hash 880329028, now seen corresponding path program 1 times [2023-11-23 22:30:53,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:53,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647060229] [2023-11-23 22:30:53,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:53,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:53,639 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:53,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132120212] [2023-11-23 22:30:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:53,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:53,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:53,641 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:53,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 22:30:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:54,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-23 22:30:54,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:54,933 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 22:30:54,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:54,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:54,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647060229] [2023-11-23 22:30:54,934 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:54,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132120212] [2023-11-23 22:30:54,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132120212] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:54,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:54,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-23 22:30:54,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417525718] [2023-11-23 22:30:54,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:54,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 22:30:54,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:54,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 22:30:54,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:30:54,946 INFO L87 Difference]: Start difference. First operand 783 states and 1110 transitions. Second operand has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:30:55,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:55,655 INFO L93 Difference]: Finished difference Result 1376 states and 1947 transitions. [2023-11-23 22:30:55,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 22:30:55,656 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 189 [2023-11-23 22:30:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:55,662 INFO L225 Difference]: With dead ends: 1376 [2023-11-23 22:30:55,663 INFO L226 Difference]: Without dead ends: 881 [2023-11-23 22:30:55,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:30:55,667 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 27 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:55,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2565 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:30:55,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2023-11-23 22:30:55,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 863. [2023-11-23 22:30:55,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 847 states have (on average 1.3907910271546635) internal successors, (1178), 849 states have internal predecessors, (1178), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-23 22:30:55,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1206 transitions. [2023-11-23 22:30:55,712 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1206 transitions. Word has length 189 [2023-11-23 22:30:55,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:55,713 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1206 transitions. [2023-11-23 22:30:55,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:30:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1206 transitions. [2023-11-23 22:30:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-11-23 22:30:55,717 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:55,717 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:55,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:55,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-23 22:30:55,931 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:55,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1813760185, now seen corresponding path program 1 times [2023-11-23 22:30:55,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:55,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381694371] [2023-11-23 22:30:55,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:55,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:56,027 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:56,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [45371900] [2023-11-23 22:30:56,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:56,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:56,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:56,029 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:56,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 22:30:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:56,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 1086 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 22:30:56,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-23 22:30:57,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:30:57,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:30:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381694371] [2023-11-23 22:30:57,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 22:30:57,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45371900] [2023-11-23 22:30:57,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45371900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:30:57,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:30:57,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:30:57,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373553988] [2023-11-23 22:30:57,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:30:57,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:30:57,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:30:57,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:30:57,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:30:57,215 INFO L87 Difference]: Start difference. First operand 863 states and 1206 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:30:57,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:30:57,794 INFO L93 Difference]: Finished difference Result 1398 states and 1959 transitions. [2023-11-23 22:30:57,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:30:57,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 190 [2023-11-23 22:30:57,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:30:57,801 INFO L225 Difference]: With dead ends: 1398 [2023-11-23 22:30:57,801 INFO L226 Difference]: Without dead ends: 863 [2023-11-23 22:30:57,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:30:57,803 INFO L413 NwaCegarLoop]: 497 mSDtfsCounter, 11 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:30:57,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2006 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:30:57,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-11-23 22:30:57,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 857. [2023-11-23 22:30:57,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 857 states, 841 states have (on average 1.3888228299643282) internal successors, (1168), 843 states have internal predecessors, (1168), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2023-11-23 22:30:57,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1196 transitions. [2023-11-23 22:30:57,841 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1196 transitions. Word has length 190 [2023-11-23 22:30:57,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:30:57,841 INFO L495 AbstractCegarLoop]: Abstraction has 857 states and 1196 transitions. [2023-11-23 22:30:57,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 22:30:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1196 transitions. [2023-11-23 22:30:57,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-23 22:30:57,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:30:57,845 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:30:57,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 22:30:58,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-23 22:30:58,065 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-23 22:30:58,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:30:58,065 INFO L85 PathProgramCache]: Analyzing trace with hash -8256419, now seen corresponding path program 1 times [2023-11-23 22:30:58,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:30:58,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633654881] [2023-11-23 22:30:58,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:58,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:30:58,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 22:30:58,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1325489849] [2023-11-23 22:30:58,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:30:58,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:30:58,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:30:58,173 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:30:58,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b36159f-238f-425a-8997-973ac8d55b7d/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 22:30:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:30:59,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 1085 conjuncts, 153 conjunts are in the unsatisfiable core [2023-11-23 22:30:59,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:30:59,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-23 22:30:59,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2023-11-23 22:30:59,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11 [2023-11-23 22:30:59,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2023-11-23 22:30:59,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2023-11-23 22:30:59,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-23 22:30:59,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 [2023-11-23 22:30:59,929 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-23 22:30:59,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-23 22:31:00,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-23 22:31:00,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 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 [2023-11-23 22:31:00,252 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-23 22:31:00,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 57 [2023-11-23 22:31:00,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-23 22:31:00,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-23 22:31:04,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 22:31:04,166 INFO L224 Elim1Store]: Index analysis took 160 ms