./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/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_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/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_a53fa1eb-0762-419b-a10b-b1845fb90848/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 fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:33:25,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:33:25,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:33:25,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:33:25,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:33:25,195 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:33:25,196 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:33:25,196 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:33:25,197 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:33:25,202 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:33:25,203 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:33:25,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:33:25,205 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:33:25,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:33:25,207 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:33:25,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:33:25,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:33:25,209 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:33:25,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:33:25,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:33:25,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:33:25,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:33:25,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:33:25,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:33:25,214 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:33:25,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:33:25,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:33:25,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:33:25,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:33:25,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:33:25,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:33:25,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:33:25,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:33:25,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:33:25,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:33:25,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:33:25,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:33:25,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:33:25,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:33:25,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:33:25,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:33:25,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:33:25,222 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:33:25,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:33:25,222 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_a53fa1eb-0762-419b-a10b-b1845fb90848/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2023-11-23 21:33:25,563 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:33:25,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:33:25,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:33:25,599 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:33:25,600 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:33:25,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i [2023-11-23 21:33:28,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:33:29,072 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:33:29,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test1-1.i [2023-11-23 21:33:29,092 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/data/3f33fbc16/9c77038a1a4e4b7eb228e3e2ff637623/FLAG467b3db58 [2023-11-23 21:33:29,108 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/data/3f33fbc16/9c77038a1a4e4b7eb228e3e2ff637623 [2023-11-23 21:33:29,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:33:29,112 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:33:29,114 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:33:29,114 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:33:29,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:33:29,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:29,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c22caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29, skipping insertion in model container [2023-11-23 21:33:29,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:29,225 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:33:29,470 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:33:29,676 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:33:29,689 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:33:29,733 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:33:29,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:33:29,903 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:33:29,911 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:33:29,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29 WrapperNode [2023-11-23 21:33:29,913 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:33:29,914 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:33:29,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:33:29,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:33:29,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:29,977 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,057 INFO L138 Inliner]: procedures = 178, calls = 178, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 760 [2023-11-23 21:33:30,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:33:30,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:33:30,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:33:30,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:33:30,071 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,072 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,090 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,148 INFO L189 HeapSplitter]: Split 163 memory accesses to 4 slices as follows [2, 5, 156, 0] [2023-11-23 21:33:30,149 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:33:30,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:33:30,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:33:30,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:33:30,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (1/1) ... [2023-11-23 21:33:30,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:33:30,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:30,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:33:30,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:33:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 21:33:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 21:33:30,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 21:33:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 21:33:30,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 21:33:30,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 21:33:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 21:33:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 21:33:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-23 21:33:30,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-23 21:33:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-23 21:33:30,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-23 21:33:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-23 21:33:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-23 21:33:30,318 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-23 21:33:30,319 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-23 21:33:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:33:30,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:33:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:33:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 21:33:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 21:33:30,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 21:33:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 21:33:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 21:33:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 21:33:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 21:33:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 21:33:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:33:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:33:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 21:33:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 21:33:30,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 21:33:30,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:33:30,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:33:30,578 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:33:30,584 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:33:31,680 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:33:31,736 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:33:31,736 INFO L309 CfgBuilder]: Removed 31 assume(true) statements. [2023-11-23 21:33:31,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:33:31 BoogieIcfgContainer [2023-11-23 21:33:31,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:33:31,740 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:33:31,741 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:33:31,744 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:33:31,744 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:33:29" (1/3) ... [2023-11-23 21:33:31,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf9d4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:33:31, skipping insertion in model container [2023-11-23 21:33:31,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:33:29" (2/3) ... [2023-11-23 21:33:31,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf9d4c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:33:31, skipping insertion in model container [2023-11-23 21:33:31,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:33:31" (3/3) ... [2023-11-23 21:33:31,752 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test1-1.i [2023-11-23 21:33:31,776 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:33:31,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 21:33:31,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:33:31,852 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;@37c7efe6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:33:31,852 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 21:33:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand has 196 states, 185 states have (on average 1.7027027027027026) internal successors, (315), 191 states have internal predecessors, (315), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:31,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:33:31,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:31,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:33:31,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:31,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:31,875 INFO L85 PathProgramCache]: Analyzing trace with hash 780477759, now seen corresponding path program 1 times [2023-11-23 21:33:31,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:31,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685282657] [2023-11-23 21:33:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:31,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:32,144 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 21:33:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685282657] [2023-11-23 21:33:32,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685282657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:32,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:32,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:33:32,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920210403] [2023-11-23 21:33:32,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:32,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:33:32,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:32,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:33:32,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:33:32,182 INFO L87 Difference]: Start difference. First operand has 196 states, 185 states have (on average 1.7027027027027026) internal successors, (315), 191 states have internal predecessors, (315), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 21:33:32,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:32,278 INFO L93 Difference]: Finished difference Result 570 states and 942 transitions. [2023-11-23 21:33:32,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:33:32,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-23 21:33:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:32,294 INFO L225 Difference]: With dead ends: 570 [2023-11-23 21:33:32,294 INFO L226 Difference]: Without dead ends: 370 [2023-11-23 21:33:32,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 21:33:32,305 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 260 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:32,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 550 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:33:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-23 21:33:32,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 191. [2023-11-23 21:33:32,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 181 states have (on average 1.5082872928176796) internal successors, (273), 186 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:32,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 279 transitions. [2023-11-23 21:33:32,384 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 279 transitions. Word has length 5 [2023-11-23 21:33:32,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:32,384 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 279 transitions. [2023-11-23 21:33:32,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 21:33:32,385 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 279 transitions. [2023-11-23 21:33:32,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:33:32,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:32,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:33:32,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:33:32,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:32,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:32,394 INFO L85 PathProgramCache]: Analyzing trace with hash 779826161, now seen corresponding path program 1 times [2023-11-23 21:33:32,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:32,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791544182] [2023-11-23 21:33:32,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:32,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:32,626 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 21:33:32,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:32,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791544182] [2023-11-23 21:33:32,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791544182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:32,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:32,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:33:32,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280424239] [2023-11-23 21:33:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:32,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:33:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:32,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:33:32,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:33:32,630 INFO L87 Difference]: Start difference. First operand 191 states and 279 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 21:33:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:32,707 INFO L93 Difference]: Finished difference Result 197 states and 285 transitions. [2023-11-23 21:33:32,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:33:32,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-23 21:33:32,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:32,716 INFO L225 Difference]: With dead ends: 197 [2023-11-23 21:33:32,716 INFO L226 Difference]: Without dead ends: 196 [2023-11-23 21:33:32,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:33:32,718 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 4 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 542 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 21:33:32,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 542 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:33:32,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-23 21:33:32,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2023-11-23 21:33:32,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 184 states have (on average 1.5) internal successors, (276), 189 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:32,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 282 transitions. [2023-11-23 21:33:32,743 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 282 transitions. Word has length 5 [2023-11-23 21:33:32,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:32,743 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 282 transitions. [2023-11-23 21:33:32,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 21:33:32,743 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 282 transitions. [2023-11-23 21:33:32,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 21:33:32,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:32,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-23 21:33:32,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:33:32,749 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:32,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:32,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1595192702, now seen corresponding path program 1 times [2023-11-23 21:33:32,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:32,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608825084] [2023-11-23 21:33:32,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:32,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:33,000 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 21:33:33,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:33,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608825084] [2023-11-23 21:33:33,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608825084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:33,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:33,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:33:33,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296878890] [2023-11-23 21:33:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:33,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:33:33,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:33,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:33:33,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:33:33,003 INFO L87 Difference]: Start difference. First operand 194 states and 282 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 21:33:33,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:33,049 INFO L93 Difference]: Finished difference Result 196 states and 284 transitions. [2023-11-23 21:33:33,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:33:33,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 21:33:33,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:33,051 INFO L225 Difference]: With dead ends: 196 [2023-11-23 21:33:33,051 INFO L226 Difference]: Without dead ends: 195 [2023-11-23 21:33:33,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:33:33,054 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:33,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 808 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:33:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-23 21:33:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-11-23 21:33:33,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.4972972972972973) internal successors, (277), 190 states have internal predecessors, (277), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:33,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 283 transitions. [2023-11-23 21:33:33,080 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 283 transitions. Word has length 6 [2023-11-23 21:33:33,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:33,081 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 283 transitions. [2023-11-23 21:33:33,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 21:33:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 283 transitions. [2023-11-23 21:33:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:33:33,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:33,086 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] [2023-11-23 21:33:33,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:33:33,087 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:33,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:33,089 INFO L85 PathProgramCache]: Analyzing trace with hash 123685284, now seen corresponding path program 1 times [2023-11-23 21:33:33,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:33,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518063107] [2023-11-23 21:33:33,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:33,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:33,580 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 21:33:33,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:33,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518063107] [2023-11-23 21:33:33,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518063107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:33,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:33,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:33:33,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44583018] [2023-11-23 21:33:33,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:33,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:33:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:33,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:33:33,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:33:33,585 INFO L87 Difference]: Start difference. First operand 195 states and 283 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 21:33:33,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:33,686 INFO L93 Difference]: Finished difference Result 388 states and 564 transitions. [2023-11-23 21:33:33,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:33:33,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2023-11-23 21:33:33,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:33,689 INFO L225 Difference]: With dead ends: 388 [2023-11-23 21:33:33,689 INFO L226 Difference]: Without dead ends: 199 [2023-11-23 21:33:33,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 21:33:33,704 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 166 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:33,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 592 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:33:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-23 21:33:33,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2023-11-23 21:33:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.4594594594594594) internal successors, (270), 190 states have internal predecessors, (270), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:33,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 276 transitions. [2023-11-23 21:33:33,732 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 276 transitions. Word has length 79 [2023-11-23 21:33:33,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:33,732 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 276 transitions. [2023-11-23 21:33:33,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 21:33:33,733 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 276 transitions. [2023-11-23 21:33:33,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:33:33,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:33,736 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] [2023-11-23 21:33:33,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:33:33,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:33,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:33,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1646765142, now seen corresponding path program 1 times [2023-11-23 21:33:33,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:33,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172806760] [2023-11-23 21:33:33,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:33,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:34,044 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 21:33:34,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:34,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172806760] [2023-11-23 21:33:34,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172806760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:34,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:34,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:33:34,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859470515] [2023-11-23 21:33:34,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:34,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:33:34,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:34,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:33:34,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:33:34,048 INFO L87 Difference]: Start difference. First operand 195 states and 276 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 21:33:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:34,156 INFO L93 Difference]: Finished difference Result 391 states and 556 transitions. [2023-11-23 21:33:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:33:34,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2023-11-23 21:33:34,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:34,174 INFO L225 Difference]: With dead ends: 391 [2023-11-23 21:33:34,174 INFO L226 Difference]: Without dead ends: 202 [2023-11-23 21:33:34,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 21:33:34,176 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 3 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:34,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 503 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:33:34,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-11-23 21:33:34,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2023-11-23 21:33:34,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 191 states have (on average 1.4450261780104712) internal successors, (276), 196 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 282 transitions. [2023-11-23 21:33:34,201 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 282 transitions. Word has length 79 [2023-11-23 21:33:34,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:34,203 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 282 transitions. [2023-11-23 21:33:34,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 21:33:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2023-11-23 21:33:34,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-23 21:33:34,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:34,214 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] [2023-11-23 21:33:34,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:33:34,215 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:34,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:34,216 INFO L85 PathProgramCache]: Analyzing trace with hash 108425112, now seen corresponding path program 1 times [2023-11-23 21:33:34,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:34,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713533156] [2023-11-23 21:33:34,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:34,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:34,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:34,416 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 21:33:34,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:34,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713533156] [2023-11-23 21:33:34,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713533156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:34,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:34,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:33:34,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049686971] [2023-11-23 21:33:34,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:34,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:33:34,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:34,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:33:34,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:33:34,419 INFO L87 Difference]: Start difference. First operand 201 states and 282 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 21:33:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:34,504 INFO L93 Difference]: Finished difference Result 511 states and 733 transitions. [2023-11-23 21:33:34,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:33:34,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2023-11-23 21:33:34,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:34,509 INFO L225 Difference]: With dead ends: 511 [2023-11-23 21:33:34,510 INFO L226 Difference]: Without dead ends: 316 [2023-11-23 21:33:34,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 21:33:34,511 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 123 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:34,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 519 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:33:34,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2023-11-23 21:33:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2023-11-23 21:33:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 306 states have (on average 1.4705882352941178) internal successors, (450), 311 states have internal predecessors, (450), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-23 21:33:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 456 transitions. [2023-11-23 21:33:34,528 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 456 transitions. Word has length 79 [2023-11-23 21:33:34,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:34,529 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 456 transitions. [2023-11-23 21:33:34,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 21:33:34,529 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 456 transitions. [2023-11-23 21:33:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-23 21:33:34,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:34,533 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 21:33:34,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:33:34,533 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:34,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:34,534 INFO L85 PathProgramCache]: Analyzing trace with hash 2146116751, now seen corresponding path program 1 times [2023-11-23 21:33:34,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:34,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150915450] [2023-11-23 21:33:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:34,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:34,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:34,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:34,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:34,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150915450] [2023-11-23 21:33:34,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150915450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:34,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:34,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:33:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557228327] [2023-11-23 21:33:34,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:34,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:33:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:33:34,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:33:34,963 INFO L87 Difference]: Start difference. First operand 316 states and 456 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 21:33:35,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:35,248 INFO L93 Difference]: Finished difference Result 380 states and 546 transitions. [2023-11-23 21:33:35,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:33:35,249 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 92 [2023-11-23 21:33:35,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:35,253 INFO L225 Difference]: With dead ends: 380 [2023-11-23 21:33:35,254 INFO L226 Difference]: Without dead ends: 378 [2023-11-23 21:33:35,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 21:33:35,255 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 168 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:35,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1000 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:33:35,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-11-23 21:33:35,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 376. [2023-11-23 21:33:35,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 363 states have (on average 1.443526170798898) internal successors, (524), 368 states have internal predecessors, (524), 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 21:33:35,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 536 transitions. [2023-11-23 21:33:35,282 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 536 transitions. Word has length 92 [2023-11-23 21:33:35,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:35,283 INFO L495 AbstractCegarLoop]: Abstraction has 376 states and 536 transitions. [2023-11-23 21:33:35,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 21:33:35,284 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 536 transitions. [2023-11-23 21:33:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 21:33:35,286 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:35,286 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 21:33:35,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:33:35,287 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:35,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1225434203, now seen corresponding path program 1 times [2023-11-23 21:33:35,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:35,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379059735] [2023-11-23 21:33:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:35,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:35,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:35,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:35,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:35,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379059735] [2023-11-23 21:33:35,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379059735] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:33:35,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596027584] [2023-11-23 21:33:35,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:35,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:35,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:35,736 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:33:35,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:33:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:36,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:33:36,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:36,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:36,331 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:33:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:36,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596027584] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:33:36,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:33:36,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-11-23 21:33:36,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594106337] [2023-11-23 21:33:36,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:33:36,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 21:33:36,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:36,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 21:33:36,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:33:36,553 INFO L87 Difference]: Start difference. First operand 376 states and 536 transitions. Second operand has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 10 states have internal predecessors, (263), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 21:33:37,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:37,053 INFO L93 Difference]: Finished difference Result 571 states and 822 transitions. [2023-11-23 21:33:37,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:33:37,057 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 10 states have internal predecessors, (263), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 97 [2023-11-23 21:33:37,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:37,062 INFO L225 Difference]: With dead ends: 571 [2023-11-23 21:33:37,062 INFO L226 Difference]: Without dead ends: 564 [2023-11-23 21:33:37,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-11-23 21:33:37,063 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 969 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2042 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:37,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2042 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:33:37,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-11-23 21:33:37,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 559. [2023-11-23 21:33:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 543 states have (on average 1.4438305709023942) internal successors, (784), 548 states have internal predecessors, (784), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:33:37,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 802 transitions. [2023-11-23 21:33:37,110 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 802 transitions. Word has length 97 [2023-11-23 21:33:37,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:37,111 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 802 transitions. [2023-11-23 21:33:37,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 23.90909090909091) internal successors, (263), 10 states have internal predecessors, (263), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 21:33:37,112 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 802 transitions. [2023-11-23 21:33:37,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-23 21:33:37,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:37,114 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-23 21:33:37,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:33:37,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:37,340 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:37,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:37,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1224782605, now seen corresponding path program 1 times [2023-11-23 21:33:37,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:37,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846866418] [2023-11-23 21:33:37,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:37,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:38,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:38,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:38,145 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:38,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:38,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846866418] [2023-11-23 21:33:38,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846866418] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:33:38,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775990339] [2023-11-23 21:33:38,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:38,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:38,148 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:33:38,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:33:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:38,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:33:38,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:38,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:33:39,003 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:39,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775990339] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:33:39,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:33:39,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-23 21:33:39,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693280738] [2023-11-23 21:33:39,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:33:39,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 21:33:39,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:39,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 21:33:39,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:33:39,007 INFO L87 Difference]: Start difference. First operand 559 states and 802 transitions. Second operand has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:33:39,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:39,526 INFO L93 Difference]: Finished difference Result 760 states and 1095 transitions. [2023-11-23 21:33:39,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 21:33:39,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2023-11-23 21:33:39,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:39,533 INFO L225 Difference]: With dead ends: 760 [2023-11-23 21:33:39,533 INFO L226 Difference]: Without dead ends: 759 [2023-11-23 21:33:39,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2023-11-23 21:33:39,535 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 765 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:39,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2484 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:33:39,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2023-11-23 21:33:39,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 744. [2023-11-23 21:33:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 725 states have (on average 1.4427586206896552) internal successors, (1046), 730 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 21:33:39,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1070 transitions. [2023-11-23 21:33:39,572 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1070 transitions. Word has length 97 [2023-11-23 21:33:39,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:39,572 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1070 transitions. [2023-11-23 21:33:39,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:33:39,573 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1070 transitions. [2023-11-23 21:33:39,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-23 21:33:39,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:39,575 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] [2023-11-23 21:33:39,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 21:33:39,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:39,788 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:39,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:39,789 INFO L85 PathProgramCache]: Analyzing trace with hash -686444826, now seen corresponding path program 1 times [2023-11-23 21:33:39,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:39,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274034128] [2023-11-23 21:33:39,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:39,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:40,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:40,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:40,543 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:40,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:40,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274034128] [2023-11-23 21:33:40,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274034128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:33:40,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316758027] [2023-11-23 21:33:40,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:40,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:40,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:40,546 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:33:40,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:33:40,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:40,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-23 21:33:40,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:41,209 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:41,209 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:33:41,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:41,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316758027] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:33:41,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:33:41,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-23 21:33:41,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332632475] [2023-11-23 21:33:41,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:33:41,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 21:33:41,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:41,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 21:33:41,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:33:41,419 INFO L87 Difference]: Start difference. First operand 744 states and 1070 transitions. Second operand has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:33:41,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:41,947 INFO L93 Difference]: Finished difference Result 757 states and 1092 transitions. [2023-11-23 21:33:41,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-23 21:33:41,948 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 98 [2023-11-23 21:33:41,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:41,954 INFO L225 Difference]: With dead ends: 757 [2023-11-23 21:33:41,955 INFO L226 Difference]: Without dead ends: 756 [2023-11-23 21:33:41,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-23 21:33:41,956 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 758 mSDsluCounter, 2730 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:41,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 3032 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:33:41,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2023-11-23 21:33:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 745. [2023-11-23 21:33:42,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 745 states, 726 states have (on average 1.4393939393939394) internal successors, (1045), 731 states have internal predecessors, (1045), 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 21:33:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 745 states to 745 states and 1069 transitions. [2023-11-23 21:33:42,008 INFO L78 Accepts]: Start accepts. Automaton has 745 states and 1069 transitions. Word has length 98 [2023-11-23 21:33:42,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:42,009 INFO L495 AbstractCegarLoop]: Abstraction has 745 states and 1069 transitions. [2023-11-23 21:33:42,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:33:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states and 1069 transitions. [2023-11-23 21:33:42,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-23 21:33:42,012 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:42,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-11-23 21:33:42,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:33:42,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:42,236 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:42,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:42,236 INFO L85 PathProgramCache]: Analyzing trace with hash -453125196, now seen corresponding path program 1 times [2023-11-23 21:33:42,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:42,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121917603] [2023-11-23 21:33:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:42,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:42,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:42,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:42,843 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:42,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:42,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121917603] [2023-11-23 21:33:42,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121917603] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:33:42,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366553963] [2023-11-23 21:33:42,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:42,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:42,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:42,848 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:33:42,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:33:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:43,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:33:43,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:43,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:33:43,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366553963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:43,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:33:43,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2023-11-23 21:33:43,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721890490] [2023-11-23 21:33:43,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:43,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:33:43,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:43,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:33:43,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:33:43,652 INFO L87 Difference]: Start difference. First operand 745 states and 1069 transitions. Second operand has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 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 21:33:43,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:43,755 INFO L93 Difference]: Finished difference Result 745 states and 1069 transitions. [2023-11-23 21:33:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:33:43,756 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 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 171 [2023-11-23 21:33:43,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:43,761 INFO L225 Difference]: With dead ends: 745 [2023-11-23 21:33:43,761 INFO L226 Difference]: Without dead ends: 744 [2023-11-23 21:33:43,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:33:43,763 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 350 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1782 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:43,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1782 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:33:43,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2023-11-23 21:33:43,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2023-11-23 21:33:43,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 726 states have (on average 1.4352617079889807) internal successors, (1042), 730 states have internal predecessors, (1042), 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 21:33:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1066 transitions. [2023-11-23 21:33:43,802 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1066 transitions. Word has length 171 [2023-11-23 21:33:43,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:43,803 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1066 transitions. [2023-11-23 21:33:43,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 33.0) internal successors, (165), 6 states have internal predecessors, (165), 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 21:33:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1066 transitions. [2023-11-23 21:33:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-23 21:33:43,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:43,808 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:43,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:33:44,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:44,020 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:44,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:44,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1507050246, now seen corresponding path program 1 times [2023-11-23 21:33:44,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:44,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942680451] [2023-11-23 21:33:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:44,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:44,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:44,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:44,585 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-23 21:33:44,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:44,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942680451] [2023-11-23 21:33:44,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942680451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:33:44,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:33:44,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:33:44,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10736459] [2023-11-23 21:33:44,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:33:44,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:33:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:44,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:33:44,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:33:44,590 INFO L87 Difference]: Start difference. First operand 744 states and 1066 transitions. Second operand has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 21:33:44,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:44,850 INFO L93 Difference]: Finished difference Result 746 states and 1080 transitions. [2023-11-23 21:33:44,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:33:44,852 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 251 [2023-11-23 21:33:44,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:44,857 INFO L225 Difference]: With dead ends: 746 [2023-11-23 21:33:44,858 INFO L226 Difference]: Without dead ends: 745 [2023-11-23 21:33:44,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 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 21:33:44,859 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 177 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:44,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 743 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:33:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-11-23 21:33:44,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 743. [2023-11-23 21:33:44,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 726 states have (on average 1.4325068870523416) internal successors, (1040), 729 states have internal predecessors, (1040), 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 21:33:44,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1064 transitions. [2023-11-23 21:33:44,896 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1064 transitions. Word has length 251 [2023-11-23 21:33:44,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:44,897 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1064 transitions. [2023-11-23 21:33:44,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 21:33:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1064 transitions. [2023-11-23 21:33:44,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-23 21:33:44,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:44,903 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:44,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 21:33:44,903 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:44,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:44,904 INFO L85 PathProgramCache]: Analyzing trace with hash -189094149, now seen corresponding path program 1 times [2023-11-23 21:33:44,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:44,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337996001] [2023-11-23 21:33:44,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:44,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:45,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:45,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:45,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:45,851 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:45,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:45,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337996001] [2023-11-23 21:33:45,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337996001] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:33:45,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093854093] [2023-11-23 21:33:45,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:45,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:45,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:45,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:33:45,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:33:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:46,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:33:46,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:46,920 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:46,920 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:33:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:47,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093854093] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:33:47,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:33:47,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2023-11-23 21:33:47,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643801308] [2023-11-23 21:33:47,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:33:47,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-23 21:33:47,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:47,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-23 21:33:47,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2023-11-23 21:33:47,415 INFO L87 Difference]: Start difference. First operand 743 states and 1064 transitions. Second operand has 19 states, 19 states have (on average 30.473684210526315) internal successors, (579), 18 states have internal predecessors, (579), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 21:33:48,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:48,065 INFO L93 Difference]: Finished difference Result 1297 states and 1882 transitions. [2023-11-23 21:33:48,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-23 21:33:48,066 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 30.473684210526315) internal successors, (579), 18 states have internal predecessors, (579), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 255 [2023-11-23 21:33:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:48,075 INFO L225 Difference]: With dead ends: 1297 [2023-11-23 21:33:48,075 INFO L226 Difference]: Without dead ends: 1291 [2023-11-23 21:33:48,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2023-11-23 21:33:48,078 INFO L413 NwaCegarLoop]: 340 mSDtfsCounter, 2747 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2785 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:48,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2785 Valid, 2869 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:33:48,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2023-11-23 21:33:48,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1285. [2023-11-23 21:33:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 1259 states have (on average 1.4352660841938045) internal successors, (1807), 1262 states have internal predecessors, (1807), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-23 21:33:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1849 transitions. [2023-11-23 21:33:48,135 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1849 transitions. Word has length 255 [2023-11-23 21:33:48,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:48,135 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1849 transitions. [2023-11-23 21:33:48,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 30.473684210526315) internal successors, (579), 18 states have internal predecessors, (579), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-23 21:33:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1849 transitions. [2023-11-23 21:33:48,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-23 21:33:48,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:48,143 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:48,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 21:33:48,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:48,356 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:48,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:48,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1650922600, now seen corresponding path program 1 times [2023-11-23 21:33:48,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:48,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135657507] [2023-11-23 21:33:48,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:48,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:52,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:33:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:33:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:52,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:33:52,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135657507] [2023-11-23 21:33:52,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135657507] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:33:52,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089164446] [2023-11-23 21:33:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:52,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:52,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:33:52,373 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:33:52,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:33:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:33:53,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-23 21:33:53,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:33:53,999 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:53,999 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:33:54,808 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:33:54,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089164446] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:33:54,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:33:54,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-23 21:33:54,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406823039] [2023-11-23 21:33:54,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:33:54,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-23 21:33:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:33:54,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-23 21:33:54,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-23 21:33:54,815 INFO L87 Difference]: Start difference. First operand 1285 states and 1849 transitions. Second operand has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:33:55,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:33:55,927 INFO L93 Difference]: Finished difference Result 1862 states and 2700 transitions. [2023-11-23 21:33:55,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-23 21:33:55,929 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 334 [2023-11-23 21:33:55,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:33:55,944 INFO L225 Difference]: With dead ends: 1862 [2023-11-23 21:33:55,944 INFO L226 Difference]: Without dead ends: 1861 [2023-11-23 21:33:55,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=481, Invalid=1079, Unknown=0, NotChecked=0, Total=1560 [2023-11-23 21:33:55,947 INFO L413 NwaCegarLoop]: 299 mSDtfsCounter, 3370 mSDsluCounter, 4342 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3416 SdHoareTripleChecker+Valid, 4641 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:33:55,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3416 Valid, 4641 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:33:55,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2023-11-23 21:33:56,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1834. [2023-11-23 21:33:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1799 states have (on average 1.4352418010005559) internal successors, (2582), 1802 states have internal predecessors, (2582), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:33:56,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2642 transitions. [2023-11-23 21:33:56,084 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2642 transitions. Word has length 334 [2023-11-23 21:33:56,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:33:56,085 INFO L495 AbstractCegarLoop]: Abstraction has 1834 states and 2642 transitions. [2023-11-23 21:33:56,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:33:56,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2642 transitions. [2023-11-23 21:33:56,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-11-23 21:33:56,092 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:33:56,093 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:33:56,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:33:56,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:33:56,308 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:33:56,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:33:56,309 INFO L85 PathProgramCache]: Analyzing trace with hash -361006869, now seen corresponding path program 1 times [2023-11-23 21:33:56,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:33:56,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27029565] [2023-11-23 21:33:56,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:33:56,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:33:56,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:34:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:00,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:34:00,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:34:00,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:00,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27029565] [2023-11-23 21:34:00,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27029565] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:34:00,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317059515] [2023-11-23 21:34:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:00,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:34:00,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:34:00,022 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:34:00,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:34:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:00,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-23 21:34:00,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:01,542 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:34:01,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:34:02,216 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:34:02,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317059515] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:34:02,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:34:02,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-23 21:34:02,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647631723] [2023-11-23 21:34:02,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:34:02,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-23 21:34:02,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:02,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-23 21:34:02,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-23 21:34:02,222 INFO L87 Difference]: Start difference. First operand 1834 states and 2642 transitions. Second operand has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:34:03,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:03,078 INFO L93 Difference]: Finished difference Result 1856 states and 2694 transitions. [2023-11-23 21:34:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-23 21:34:03,080 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 335 [2023-11-23 21:34:03,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:03,092 INFO L225 Difference]: With dead ends: 1856 [2023-11-23 21:34:03,093 INFO L226 Difference]: Without dead ends: 1855 [2023-11-23 21:34:03,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=340, Invalid=782, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 21:34:03,097 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 4198 mSDsluCounter, 3704 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4244 SdHoareTripleChecker+Valid, 4004 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:03,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4244 Valid, 4004 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:34:03,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1855 states. [2023-11-23 21:34:03,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1855 to 1835. [2023-11-23 21:34:03,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1835 states, 1800 states have (on average 1.4322222222222223) internal successors, (2578), 1803 states have internal predecessors, (2578), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-23 21:34:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2638 transitions. [2023-11-23 21:34:03,184 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2638 transitions. Word has length 335 [2023-11-23 21:34:03,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:03,185 INFO L495 AbstractCegarLoop]: Abstraction has 1835 states and 2638 transitions. [2023-11-23 21:34:03,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-23 21:34:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2638 transitions. [2023-11-23 21:34:03,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2023-11-23 21:34:03,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:03,202 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:03,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:34:03,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:34:03,415 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:34:03,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:03,416 INFO L85 PathProgramCache]: Analyzing trace with hash 990880827, now seen corresponding path program 2 times [2023-11-23 21:34:03,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:03,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512841437] [2023-11-23 21:34:03,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:03,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:03,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:06,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-23 21:34:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-23 21:34:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:06,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:34:06,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:06,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512841437] [2023-11-23 21:34:06,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512841437] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:34:06,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478986123] [2023-11-23 21:34:06,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:34:06,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:34:06,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:34:06,175 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:34:06,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a53fa1eb-0762-419b-a10b-b1845fb90848/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:34:07,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:34:07,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:34:07,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 21:34:07,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:34:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:34:08,467 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:34:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-23 21:34:09,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478986123] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:34:09,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:34:09,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 24 [2023-11-23 21:34:09,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253292031] [2023-11-23 21:34:09,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:34:09,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-23 21:34:09,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:09,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-23 21:34:09,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2023-11-23 21:34:09,525 INFO L87 Difference]: Start difference. First operand 1835 states and 2638 transitions. Second operand has 24 states, 24 states have (on average 34.125) internal successors, (819), 23 states have internal predecessors, (819), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)