./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:02:48,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:02:48,233 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:02:48,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:02:48,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:02:48,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:02:48,265 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:02:48,266 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:02:48,267 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:02:48,267 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:02:48,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:02:48,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:02:48,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:02:48,270 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:02:48,270 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:02:48,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:02:48,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:02:48,272 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:02:48,272 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:02:48,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:02:48,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:02:48,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:02:48,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:02:48,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:02:48,278 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:02:48,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:02:48,278 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:02:48,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:02:48,279 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:02:48,280 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:02:48,280 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:02:48,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:02:48,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:02:48,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:02:48,281 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:02:48,281 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:02:48,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:02:48,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:02:48,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:02:48,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:02:48,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:02:48,283 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:02:48,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:02:48,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:02:48,283 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_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2023-11-29 01:02:48,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:02:48,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:02:48,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:02:48,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:02:48,535 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:02:48,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2023-11-29 01:02:51,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:02:51,731 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:02:51,732 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2023-11-29 01:02:51,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/data/7e88b7b56/a91c67bccc6743f3a2da94070bdccbf5/FLAG64db6a8f5 [2023-11-29 01:02:51,768 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/data/7e88b7b56/a91c67bccc6743f3a2da94070bdccbf5 [2023-11-29 01:02:51,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:02:51,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:02:51,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:02:51,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:02:51,780 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:02:51,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:02:51" (1/1) ... [2023-11-29 01:02:51,782 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f049e71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:51, skipping insertion in model container [2023-11-29 01:02:51,782 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:02:51" (1/1) ... [2023-11-29 01:02:51,861 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:02:52,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:02:52,563 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:02:52,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:02:52,760 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:02:52,768 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:02:52,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52 WrapperNode [2023-11-29 01:02:52,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:02:52,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:02:52,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:02:52,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:02:52,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:52,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:52,892 INFO L138 Inliner]: procedures = 282, calls = 351, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1552 [2023-11-29 01:02:52,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:02:52,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:02:52,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:02:52,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:02:52,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:52,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:52,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,040 INFO L175 MemorySlicer]: Split 314 memory accesses to 5 slices as follows [2, 34, 3, 5, 270]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 64 writes are split as follows [0, 4, 2, 1, 57]. [2023-11-29 01:02:53,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,104 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,121 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,133 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:02:53,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:02:53,134 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:02:53,134 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:02:53,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (1/1) ... [2023-11-29 01:02:53,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:02:53,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:53,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:02:53,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:02:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-29 01:02:53,211 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-29 01:02:53,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:02:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-29 01:02:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:02:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:02:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:02:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:02:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 01:02:53,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:02:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-29 01:02:53,213 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-29 01:02:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:02:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:02:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:02:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:02:53,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:02:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-29 01:02:53,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-29 01:02:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:02:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:02:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:02:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:02:53,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:02:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:02:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:02:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-29 01:02:53,215 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-29 01:02:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:02:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:02:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:02:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:02:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 01:02:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-29 01:02:53,216 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-29 01:02:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:02:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:02:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:02:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:02:53,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:02:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:02:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:02:53,470 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:02:53,472 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:02:54,950 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:02:55,006 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:02:55,006 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-29 01:02:55,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:02:55 BoogieIcfgContainer [2023-11-29 01:02:55,007 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:02:55,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:02:55,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:02:55,013 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:02:55,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:02:51" (1/3) ... [2023-11-29 01:02:55,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c45378a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:02:55, skipping insertion in model container [2023-11-29 01:02:55,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:02:52" (2/3) ... [2023-11-29 01:02:55,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c45378a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:02:55, skipping insertion in model container [2023-11-29 01:02:55,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:02:55" (3/3) ... [2023-11-29 01:02:55,016 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2023-11-29 01:02:55,034 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:02:55,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-29 01:02:55,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:02:55,104 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;@368f4d49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:02:55,104 INFO L358 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2023-11-29 01:02:55,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 447 states, 408 states have (on average 1.6862745098039216) internal successors, (688), 425 states have internal predecessors, (688), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-29 01:02:55,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:02:55,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:02:55,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:02:55,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:02:55,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash -620020903, now seen corresponding path program 1 times [2023-11-29 01:02:55,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:55,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158511224] [2023-11-29 01:02:55,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:55,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:55,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:55,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158511224] [2023-11-29 01:02:55,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:02:55,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966122166] [2023-11-29 01:02:55,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:55,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:55,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:55,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:55,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:02:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:55,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 01:02:55,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:55,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:55,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:02:55,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966122166] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:55,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:55,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:55,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313552299] [2023-11-29 01:02:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:55,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 01:02:55,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:55,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 01:02:55,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:02:55,595 INFO L87 Difference]: Start difference. First operand has 447 states, 408 states have (on average 1.6862745098039216) internal successors, (688), 425 states have internal predecessors, (688), 20 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:55,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:02:55,692 INFO L93 Difference]: Finished difference Result 888 states and 1462 transitions. [2023-11-29 01:02:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 01:02:55,697 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-29 01:02:55,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:02:55,713 INFO L225 Difference]: With dead ends: 888 [2023-11-29 01:02:55,713 INFO L226 Difference]: Without dead ends: 435 [2023-11-29 01:02:55,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 01:02:55,724 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:02:55,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 632 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:02:55,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-11-29 01:02:55,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2023-11-29 01:02:55,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 402 states have (on average 1.4950248756218905) internal successors, (601), 416 states have internal predecessors, (601), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:02:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 631 transitions. [2023-11-29 01:02:55,802 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 631 transitions. Word has length 6 [2023-11-29 01:02:55,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:02:55,803 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 631 transitions. [2023-11-29 01:02:55,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 631 transitions. [2023-11-29 01:02:55,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 01:02:55,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:02:55,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 01:02:55,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:02:56,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 01:02:56,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:02:56,013 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:56,013 INFO L85 PathProgramCache]: Analyzing trace with hash -620018981, now seen corresponding path program 1 times [2023-11-29 01:02:56,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:56,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373921318] [2023-11-29 01:02:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:56,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:56,048 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:02:56,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [304988878] [2023-11-29 01:02:56,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:56,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:56,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:56,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:56,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:02:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:56,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:02:56,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:56,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:02:56,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:56,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:02:56,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:56,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373921318] [2023-11-29 01:02:56,340 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:02:56,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304988878] [2023-11-29 01:02:56,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304988878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:56,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:56,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:56,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370821032] [2023-11-29 01:02:56,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:56,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:02:56,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:56,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:02:56,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:02:56,343 INFO L87 Difference]: Start difference. First operand 435 states and 631 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) [2023-11-29 01:02:56,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:02:56,568 INFO L93 Difference]: Finished difference Result 841 states and 1234 transitions. [2023-11-29 01:02:56,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:02:56,568 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 [2023-11-29 01:02:56,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:02:56,575 INFO L225 Difference]: With dead ends: 841 [2023-11-29 01:02:56,575 INFO L226 Difference]: Without dead ends: 839 [2023-11-29 01:02:56,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:56,578 INFO L413 NwaCegarLoop]: 637 mSDtfsCounter, 568 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 582 SdHoareTripleChecker+Valid, 1861 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:02:56,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [582 Valid, 1861 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:02:56,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-11-29 01:02:56,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 441. [2023-11-29 01:02:56,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 408 states have (on average 1.4901960784313726) internal successors, (608), 422 states have internal predecessors, (608), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:02:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 638 transitions. [2023-11-29 01:02:56,612 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 638 transitions. Word has length 6 [2023-11-29 01:02:56,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:02:56,613 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 638 transitions. [2023-11-29 01:02:56,613 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) [2023-11-29 01:02:56,613 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 638 transitions. [2023-11-29 01:02:56,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 01:02:56,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:02:56,616 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:02:56,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:02:56,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:56,817 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:02:56,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:56,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1360533943, now seen corresponding path program 1 times [2023-11-29 01:02:56,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:56,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131278151] [2023-11-29 01:02:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:56,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:57,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 01:02:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-29 01:02:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:02:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 01:02:57,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:57,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131278151] [2023-11-29 01:02:57,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131278151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:57,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:57,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:02:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482658906] [2023-11-29 01:02:57,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:57,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:02:57,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:57,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:02:57,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:02:57,104 INFO L87 Difference]: Start difference. First operand 441 states and 638 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:02:57,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:02:57,295 INFO L93 Difference]: Finished difference Result 1068 states and 1564 transitions. [2023-11-29 01:02:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:02:57,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2023-11-29 01:02:57,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:02:57,302 INFO L225 Difference]: With dead ends: 1068 [2023-11-29 01:02:57,302 INFO L226 Difference]: Without dead ends: 838 [2023-11-29 01:02:57,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:57,305 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 569 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1892 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:02:57,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1892 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:02:57,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2023-11-29 01:02:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 441. [2023-11-29 01:02:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 408 states have (on average 1.4877450980392157) internal successors, (607), 422 states have internal predecessors, (607), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:02:57,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 637 transitions. [2023-11-29 01:02:57,331 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 637 transitions. Word has length 33 [2023-11-29 01:02:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:02:57,332 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 637 transitions. [2023-11-29 01:02:57,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-29 01:02:57,332 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 637 transitions. [2023-11-29 01:02:57,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:02:57,335 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:02:57,335 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] [2023-11-29 01:02:57,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:02:57,336 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:02:57,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:57,336 INFO L85 PathProgramCache]: Analyzing trace with hash 652069050, now seen corresponding path program 1 times [2023-11-29 01:02:57,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:57,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652199986] [2023-11-29 01:02:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:57,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:57,373 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:02:57,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132494437] [2023-11-29 01:02:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:57,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:57,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:57,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:57,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:02:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:57,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:02:57,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:57,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:57,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:02:57,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:57,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652199986] [2023-11-29 01:02:57,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:02:57,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132494437] [2023-11-29 01:02:57,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132494437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:57,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:57,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:02:57,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928651979] [2023-11-29 01:02:57,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:57,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:02:57,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:57,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:02:57,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:57,658 INFO L87 Difference]: Start difference. First operand 441 states and 637 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:57,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:02:57,763 INFO L93 Difference]: Finished difference Result 896 states and 1298 transitions. [2023-11-29 01:02:57,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:02:57,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-11-29 01:02:57,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:02:57,767 INFO L225 Difference]: With dead ends: 896 [2023-11-29 01:02:57,768 INFO L226 Difference]: Without dead ends: 462 [2023-11-29 01:02:57,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:02:57,770 INFO L413 NwaCegarLoop]: 603 mSDtfsCounter, 9 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:02:57,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1192 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:02:57,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-29 01:02:57,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2023-11-29 01:02:57,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 428 states have (on average 1.4649532710280373) internal successors, (627), 442 states have internal predecessors, (627), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:02:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 657 transitions. [2023-11-29 01:02:57,789 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 657 transitions. Word has length 62 [2023-11-29 01:02:57,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:02:57,789 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 657 transitions. [2023-11-29 01:02:57,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:57,789 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 657 transitions. [2023-11-29 01:02:57,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:02:57,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:02:57,792 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] [2023-11-29 01:02:57,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:02:57,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:57,999 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:02:58,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:58,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1593510404, now seen corresponding path program 1 times [2023-11-29 01:02:58,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:58,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401912753] [2023-11-29 01:02:58,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:58,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:58,033 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:02:58,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1391588475] [2023-11-29 01:02:58,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:58,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:58,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:58,034 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:58,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:02:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:58,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:02:58,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:58,307 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:02:58,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:58,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401912753] [2023-11-29 01:02:58,308 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:02:58,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391588475] [2023-11-29 01:02:58,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391588475] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:58,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:58,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:02:58,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069519592] [2023-11-29 01:02:58,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:58,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:02:58,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:58,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:02:58,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:02:58,311 INFO L87 Difference]: Start difference. First operand 461 states and 657 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:58,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:02:58,441 INFO L93 Difference]: Finished difference Result 902 states and 1294 transitions. [2023-11-29 01:02:58,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:02:58,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-11-29 01:02:58,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:02:58,445 INFO L225 Difference]: With dead ends: 902 [2023-11-29 01:02:58,445 INFO L226 Difference]: Without dead ends: 448 [2023-11-29 01:02:58,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:58,447 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 165 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1636 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:02:58,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 1636 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:02:58,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-29 01:02:58,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 447. [2023-11-29 01:02:58,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 414 states have (on average 1.463768115942029) internal successors, (606), 428 states have internal predecessors, (606), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-29 01:02:58,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 636 transitions. [2023-11-29 01:02:58,464 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 636 transitions. Word has length 62 [2023-11-29 01:02:58,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:02:58,464 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 636 transitions. [2023-11-29 01:02:58,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 636 transitions. [2023-11-29 01:02:58,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-29 01:02:58,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:02:58,466 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] [2023-11-29 01:02:58,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 01:02:58,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:58,672 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:02:58,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1885403438, now seen corresponding path program 1 times [2023-11-29 01:02:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:58,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124178802] [2023-11-29 01:02:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:58,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:58,706 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:02:58,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617218969] [2023-11-29 01:02:58,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:58,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:58,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:58,708 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:58,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:02:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:58,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:02:58,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:59,036 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:02:59,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:59,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124178802] [2023-11-29 01:02:59,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:02:59,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617218969] [2023-11-29 01:02:59,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617218969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:59,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:59,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:59,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682232722] [2023-11-29 01:02:59,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:59,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:02:59,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:59,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:02:59,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:02:59,038 INFO L87 Difference]: Start difference. First operand 447 states and 636 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:59,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:02:59,150 INFO L93 Difference]: Finished difference Result 870 states and 1248 transitions. [2023-11-29 01:02:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:02:59,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2023-11-29 01:02:59,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:02:59,160 INFO L225 Difference]: With dead ends: 870 [2023-11-29 01:02:59,160 INFO L226 Difference]: Without dead ends: 868 [2023-11-29 01:02:59,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:59,161 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 544 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 1915 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:02:59,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 1915 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:02:59,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2023-11-29 01:02:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 856. [2023-11-29 01:02:59,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 808 states have (on average 1.4690594059405941) internal successors, (1187), 824 states have internal predecessors, (1187), 27 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (30), 24 states have call predecessors, (30), 27 states have call successors, (30) [2023-11-29 01:02:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1244 transitions. [2023-11-29 01:02:59,200 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1244 transitions. Word has length 62 [2023-11-29 01:02:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:02:59,201 INFO L495 AbstractCegarLoop]: Abstraction has 856 states and 1244 transitions. [2023-11-29 01:02:59,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:59,201 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1244 transitions. [2023-11-29 01:02:59,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-29 01:02:59,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:02:59,202 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] [2023-11-29 01:02:59,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:02:59,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-29 01:02:59,404 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:02:59,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:02:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1682035525, now seen corresponding path program 1 times [2023-11-29 01:02:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:02:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344927027] [2023-11-29 01:02:59,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:02:59,434 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:02:59,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1972063365] [2023-11-29 01:02:59,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:02:59,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:02:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:02:59,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:02:59,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:02:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:02:59,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:02:59,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:02:59,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:02:59,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:02:59,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:02:59,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344927027] [2023-11-29 01:02:59,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:02:59,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972063365] [2023-11-29 01:02:59,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972063365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:02:59,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:02:59,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:02:59,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134003608] [2023-11-29 01:02:59,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:02:59,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:02:59,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:02:59,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:02:59,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:02:59,831 INFO L87 Difference]: Start difference. First operand 856 states and 1244 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:02:59,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:02:59,943 INFO L93 Difference]: Finished difference Result 1453 states and 2119 transitions. [2023-11-29 01:02:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:02:59,944 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2023-11-29 01:02:59,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:02:59,955 INFO L225 Difference]: With dead ends: 1453 [2023-11-29 01:02:59,955 INFO L226 Difference]: Without dead ends: 1451 [2023-11-29 01:02:59,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:02:59,957 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 485 mSDsluCounter, 1216 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:02:59,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 1828 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:02:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2023-11-29 01:03:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1443. [2023-11-29 01:03:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1378 states have (on average 1.474600870827286) internal successors, (2032), 1396 states have internal predecessors, (2032), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2023-11-29 01:03:00,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2117 transitions. [2023-11-29 01:03:00,019 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2117 transitions. Word has length 63 [2023-11-29 01:03:00,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:00,020 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 2117 transitions. [2023-11-29 01:03:00,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 01:03:00,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2117 transitions. [2023-11-29 01:03:00,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-29 01:03:00,021 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:00,022 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] [2023-11-29 01:03:00,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:03:00,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 01:03:00,229 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:00,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:00,229 INFO L85 PathProgramCache]: Analyzing trace with hash -304228015, now seen corresponding path program 1 times [2023-11-29 01:03:00,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:00,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680801840] [2023-11-29 01:03:00,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:00,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:00,260 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:00,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1575939452] [2023-11-29 01:03:00,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:00,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:00,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:00,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:00,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:03:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:00,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:03:00,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:00,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:00,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:00,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680801840] [2023-11-29 01:03:00,644 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:00,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575939452] [2023-11-29 01:03:00,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575939452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:00,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:00,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:03:00,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108281985] [2023-11-29 01:03:00,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:00,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:03:00,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:00,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:03:00,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:00,647 INFO L87 Difference]: Start difference. First operand 1443 states and 2117 transitions. Second operand has 3 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:03:00,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:00,695 INFO L93 Difference]: Finished difference Result 1443 states and 2117 transitions. [2023-11-29 01:03:00,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:03:00,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-11-29 01:03:00,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:00,704 INFO L225 Difference]: With dead ends: 1443 [2023-11-29 01:03:00,704 INFO L226 Difference]: Without dead ends: 1442 [2023-11-29 01:03:00,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:00,705 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 552 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:00,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 611 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:03:00,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1442 states. [2023-11-29 01:03:00,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1442 to 1442. [2023-11-29 01:03:00,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1442 states, 1378 states have (on average 1.4731494920174166) internal successors, (2030), 1395 states have internal predecessors, (2030), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2023-11-29 01:03:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2115 transitions. [2023-11-29 01:03:00,748 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2115 transitions. Word has length 71 [2023-11-29 01:03:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:00,749 INFO L495 AbstractCegarLoop]: Abstraction has 1442 states and 2115 transitions. [2023-11-29 01:03:00,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.0) internal successors, (68), 2 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:03:00,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2115 transitions. [2023-11-29 01:03:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-29 01:03:00,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:00,750 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] [2023-11-29 01:03:00,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:03:00,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:00,951 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:00,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:00,951 INFO L85 PathProgramCache]: Analyzing trace with hash -841133804, now seen corresponding path program 1 times [2023-11-29 01:03:00,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:00,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378783282] [2023-11-29 01:03:00,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:00,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:01,011 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:01,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [576071960] [2023-11-29 01:03:01,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:01,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:01,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:01,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:01,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:03:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:01,322 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:03:01,326 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:01,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:01,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:01,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:01,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378783282] [2023-11-29 01:03:01,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:01,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576071960] [2023-11-29 01:03:01,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576071960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:01,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:01,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 01:03:01,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911027260] [2023-11-29 01:03:01,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:01,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:03:01,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:01,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:03:01,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:01,446 INFO L87 Difference]: Start difference. First operand 1442 states and 2115 transitions. Second operand has 3 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:03:01,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:01,521 INFO L93 Difference]: Finished difference Result 1469 states and 2135 transitions. [2023-11-29 01:03:01,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:03:01,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 72 [2023-11-29 01:03:01,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:01,532 INFO L225 Difference]: With dead ends: 1469 [2023-11-29 01:03:01,532 INFO L226 Difference]: Without dead ends: 1468 [2023-11-29 01:03:01,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:01,534 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 491 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:01,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 1223 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:03:01,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2023-11-29 01:03:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1459. [2023-11-29 01:03:01,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1390 states have (on average 1.4697841726618706) internal successors, (2043), 1408 states have internal predecessors, (2043), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2023-11-29 01:03:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2134 transitions. [2023-11-29 01:03:01,606 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2134 transitions. Word has length 72 [2023-11-29 01:03:01,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:01,606 INFO L495 AbstractCegarLoop]: Abstraction has 1459 states and 2134 transitions. [2023-11-29 01:03:01,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:03:01,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2134 transitions. [2023-11-29 01:03:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 01:03:01,607 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:01,608 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] [2023-11-29 01:03:01,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 01:03:01,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:01,812 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:01,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:01,813 INFO L85 PathProgramCache]: Analyzing trace with hash 494764585, now seen corresponding path program 1 times [2023-11-29 01:03:01,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:01,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130109060] [2023-11-29 01:03:01,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:01,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:01,850 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:01,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069503417] [2023-11-29 01:03:01,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:01,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:01,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:01,852 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:01,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:03:02,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:02,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 01:03:02,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:02,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:02,321 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:03:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:02,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:02,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130109060] [2023-11-29 01:03:02,585 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:02,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069503417] [2023-11-29 01:03:02,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069503417] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:03:02,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:03:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 13 [2023-11-29 01:03:02,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039470305] [2023-11-29 01:03:02,586 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:03:02,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:03:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:02,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:03:02,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:03:02,588 INFO L87 Difference]: Start difference. First operand 1459 states and 2134 transitions. Second operand has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 12 states have internal predecessors, (148), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:03:03,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:03,611 INFO L93 Difference]: Finished difference Result 3583 states and 5230 transitions. [2023-11-29 01:03:03,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:03:03,612 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 12 states have internal predecessors, (148), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 79 [2023-11-29 01:03:03,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:03,636 INFO L225 Difference]: With dead ends: 3583 [2023-11-29 01:03:03,636 INFO L226 Difference]: Without dead ends: 3581 [2023-11-29 01:03:03,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=557, Unknown=0, NotChecked=0, Total=812 [2023-11-29 01:03:03,638 INFO L413 NwaCegarLoop]: 633 mSDtfsCounter, 4355 mSDsluCounter, 5815 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4374 SdHoareTripleChecker+Valid, 6448 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:03,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4374 Valid, 6448 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:03:03,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2023-11-29 01:03:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 3288. [2023-11-29 01:03:03,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3147 states have (on average 1.4680648236415634) internal successors, (4620), 3169 states have internal predecessors, (4620), 101 states have call successors, (101), 33 states have call predecessors, (101), 27 states have return successors, (122), 86 states have call predecessors, (122), 101 states have call successors, (122) [2023-11-29 01:03:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 4843 transitions. [2023-11-29 01:03:03,775 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 4843 transitions. Word has length 79 [2023-11-29 01:03:03,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:03,776 INFO L495 AbstractCegarLoop]: Abstraction has 3288 states and 4843 transitions. [2023-11-29 01:03:03,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.384615384615385) internal successors, (148), 12 states have internal predecessors, (148), 4 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:03:03,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 4843 transitions. [2023-11-29 01:03:03,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-29 01:03:03,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:03,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:03,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 01:03:03,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:03,978 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:03,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:03,979 INFO L85 PathProgramCache]: Analyzing trace with hash 2092260, now seen corresponding path program 1 times [2023-11-29 01:03:03,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:03,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772544702] [2023-11-29 01:03:03,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:03,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:04,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:04,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1943273077] [2023-11-29 01:03:04,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:04,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:04,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:04,037 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:04,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:03:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:04,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:03:04,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:04,591 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:04,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:04,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772544702] [2023-11-29 01:03:04,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:04,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1943273077] [2023-11-29 01:03:04,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1943273077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:04,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:04,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:03:04,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996477965] [2023-11-29 01:03:04,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:04,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:03:04,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:04,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:03:04,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:04,593 INFO L87 Difference]: Start difference. First operand 3288 states and 4843 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-29 01:03:04,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:04,826 INFO L93 Difference]: Finished difference Result 7216 states and 10686 transitions. [2023-11-29 01:03:04,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:03:04,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2023-11-29 01:03:04,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:04,847 INFO L225 Difference]: With dead ends: 7216 [2023-11-29 01:03:04,847 INFO L226 Difference]: Without dead ends: 3935 [2023-11-29 01:03:04,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:03:04,853 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 390 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1392 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:04,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1392 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:03:04,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3935 states. [2023-11-29 01:03:04,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3935 to 3717. [2023-11-29 01:03:04,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3717 states, 3575 states have (on average 1.484195804195804) internal successors, (5306), 3595 states have internal predecessors, (5306), 105 states have call successors, (105), 29 states have call predecessors, (105), 24 states have return successors, (126), 93 states have call predecessors, (126), 105 states have call successors, (126) [2023-11-29 01:03:04,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 5537 transitions. [2023-11-29 01:03:04,947 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 5537 transitions. Word has length 80 [2023-11-29 01:03:04,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:04,947 INFO L495 AbstractCegarLoop]: Abstraction has 3717 states and 5537 transitions. [2023-11-29 01:03:04,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-11-29 01:03:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 5537 transitions. [2023-11-29 01:03:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-11-29 01:03:04,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:04,949 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:04,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:03:05,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:05,150 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:05,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:05,150 INFO L85 PathProgramCache]: Analyzing trace with hash 279871174, now seen corresponding path program 1 times [2023-11-29 01:03:05,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:05,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831240739] [2023-11-29 01:03:05,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:05,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:05,192 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:05,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1414961405] [2023-11-29 01:03:05,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:05,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:05,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:05,194 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:05,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:03:05,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:05,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:03:05,560 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:05,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:05,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:03:05,833 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-29 01:03:05,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:05,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831240739] [2023-11-29 01:03:05,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:05,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414961405] [2023-11-29 01:03:05,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414961405] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:03:05,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:03:05,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 9 [2023-11-29 01:03:05,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512800218] [2023-11-29 01:03:05,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:03:05,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:03:05,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:05,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:03:05,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:03:05,836 INFO L87 Difference]: Start difference. First operand 3717 states and 5537 transitions. Second operand has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 10 states have internal predecessors, (157), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 01:03:06,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:06,326 INFO L93 Difference]: Finished difference Result 6781 states and 10076 transitions. [2023-11-29 01:03:06,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 01:03:06,327 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 10 states have internal predecessors, (157), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 88 [2023-11-29 01:03:06,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:06,359 INFO L225 Difference]: With dead ends: 6781 [2023-11-29 01:03:06,359 INFO L226 Difference]: Without dead ends: 6780 [2023-11-29 01:03:06,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=165, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:03:06,362 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 2731 mSDsluCounter, 2773 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2750 SdHoareTripleChecker+Valid, 3353 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:06,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2750 Valid, 3353 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:03:06,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6780 states. [2023-11-29 01:03:06,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6780 to 6349. [2023-11-29 01:03:06,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6349 states, 6102 states have (on average 1.4827925270403146) internal successors, (9048), 6125 states have internal predecessors, (9048), 184 states have call successors, (184), 60 states have call predecessors, (184), 50 states have return successors, (217), 164 states have call predecessors, (217), 184 states have call successors, (217) [2023-11-29 01:03:06,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6349 states to 6349 states and 9449 transitions. [2023-11-29 01:03:06,553 INFO L78 Accepts]: Start accepts. Automaton has 6349 states and 9449 transitions. Word has length 88 [2023-11-29 01:03:06,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:06,553 INFO L495 AbstractCegarLoop]: Abstraction has 6349 states and 9449 transitions. [2023-11-29 01:03:06,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 17.444444444444443) internal successors, (157), 10 states have internal predecessors, (157), 4 states have call successors, (8), 6 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2023-11-29 01:03:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 6349 states and 9449 transitions. [2023-11-29 01:03:06,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 01:03:06,555 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:06,555 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:06,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:03:06,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:06,755 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:06,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:06,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1613682208, now seen corresponding path program 1 times [2023-11-29 01:03:06,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:06,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728147647] [2023-11-29 01:03:06,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:06,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:06,801 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:06,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1226010347] [2023-11-29 01:03:06,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:06,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:06,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:06,803 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:06,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:03:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:07,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:03:07,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-29 01:03:07,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:07,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728147647] [2023-11-29 01:03:07,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226010347] [2023-11-29 01:03:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226010347] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:07,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:07,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:03:07,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496175615] [2023-11-29 01:03:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:07,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:03:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:03:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:03:07,245 INFO L87 Difference]: Start difference. First operand 6349 states and 9449 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:03:07,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:07,530 INFO L93 Difference]: Finished difference Result 12566 states and 18706 transitions. [2023-11-29 01:03:07,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 01:03:07,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 112 [2023-11-29 01:03:07,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:07,564 INFO L225 Difference]: With dead ends: 12566 [2023-11-29 01:03:07,564 INFO L226 Difference]: Without dead ends: 6349 [2023-11-29 01:03:07,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:03:07,576 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 142 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:07,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 2893 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:03:07,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6349 states. [2023-11-29 01:03:07,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6349 to 6349. [2023-11-29 01:03:07,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6349 states, 6102 states have (on average 1.4826286463454605) internal successors, (9047), 6124 states have internal predecessors, (9047), 184 states have call successors, (184), 60 states have call predecessors, (184), 50 states have return successors, (217), 164 states have call predecessors, (217), 184 states have call successors, (217) [2023-11-29 01:03:07,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6349 states to 6349 states and 9448 transitions. [2023-11-29 01:03:07,734 INFO L78 Accepts]: Start accepts. Automaton has 6349 states and 9448 transitions. Word has length 112 [2023-11-29 01:03:07,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:07,734 INFO L495 AbstractCegarLoop]: Abstraction has 6349 states and 9448 transitions. [2023-11-29 01:03:07,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 01:03:07,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6349 states and 9448 transitions. [2023-11-29 01:03:07,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-29 01:03:07,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:07,736 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:07,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:03:07,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:07,936 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:07,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:07,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1096075042, now seen corresponding path program 1 times [2023-11-29 01:03:07,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:07,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583304587] [2023-11-29 01:03:07,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:07,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:07,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:07,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421303727] [2023-11-29 01:03:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:07,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:07,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:07,997 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:08,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 01:03:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:08,339 INFO L262 TraceCheckSpWp]: Trace formula consists of 708 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:03:08,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:08,349 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:03:08,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 01:03:08,585 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 01:03:08,585 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:08,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:08,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583304587] [2023-11-29 01:03:08,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:08,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421303727] [2023-11-29 01:03:08,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421303727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:08,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:08,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:03:08,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947972197] [2023-11-29 01:03:08,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:08,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:08,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:08,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:08,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:08,588 INFO L87 Difference]: Start difference. First operand 6349 states and 9448 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:03:12,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:16,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:20,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:24,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:28,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:03:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:29,079 INFO L93 Difference]: Finished difference Result 8867 states and 13153 transitions. [2023-11-29 01:03:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:03:29,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 117 [2023-11-29 01:03:29,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:29,099 INFO L225 Difference]: With dead ends: 8867 [2023-11-29 01:03:29,099 INFO L226 Difference]: Without dead ends: 8866 [2023-11-29 01:03:29,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:03:29,101 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 985 mSDsluCounter, 910 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 14 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:29,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1486 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 126 Invalid, 5 Unknown, 0 Unchecked, 20.3s Time] [2023-11-29 01:03:29,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8866 states. [2023-11-29 01:03:29,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8866 to 6014. [2023-11-29 01:03:29,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6014 states, 5752 states have (on average 1.4732267037552156) internal successors, (8474), 5779 states have internal predecessors, (8474), 193 states have call successors, (193), 69 states have call predecessors, (193), 57 states have return successors, (226), 165 states have call predecessors, (226), 193 states have call successors, (226) [2023-11-29 01:03:29,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6014 states to 6014 states and 8893 transitions. [2023-11-29 01:03:29,280 INFO L78 Accepts]: Start accepts. Automaton has 6014 states and 8893 transitions. Word has length 117 [2023-11-29 01:03:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:29,280 INFO L495 AbstractCegarLoop]: Abstraction has 6014 states and 8893 transitions. [2023-11-29 01:03:29,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:03:29,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6014 states and 8893 transitions. [2023-11-29 01:03:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-29 01:03:29,282 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:29,282 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:29,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-29 01:03:29,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:29,483 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:29,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:29,483 INFO L85 PathProgramCache]: Analyzing trace with hash -381411248, now seen corresponding path program 1 times [2023-11-29 01:03:29,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:29,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441137806] [2023-11-29 01:03:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:29,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:29,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:29,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326928687] [2023-11-29 01:03:29,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:29,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:29,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:29,527 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:29,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 01:03:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:29,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:03:29,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:30,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 01:03:30,174 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 01:03:30,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:30,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:30,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441137806] [2023-11-29 01:03:30,175 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:30,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326928687] [2023-11-29 01:03:30,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326928687] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:30,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:30,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:03:30,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618677678] [2023-11-29 01:03:30,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:30,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:03:30,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:30,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:03:30,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:03:30,177 INFO L87 Difference]: Start difference. First operand 6014 states and 8893 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:03:30,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:30,708 INFO L93 Difference]: Finished difference Result 6283 states and 9256 transitions. [2023-11-29 01:03:30,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:03:30,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 118 [2023-11-29 01:03:30,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:30,727 INFO L225 Difference]: With dead ends: 6283 [2023-11-29 01:03:30,728 INFO L226 Difference]: Without dead ends: 6282 [2023-11-29 01:03:30,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 106 SyntacticMatches, 7 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:03:30,731 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 981 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:30,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [991 Valid, 2045 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:03:30,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6282 states. [2023-11-29 01:03:30,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6282 to 6013. [2023-11-29 01:03:30,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6013 states, 5752 states have (on average 1.4713143254520167) internal successors, (8463), 5778 states have internal predecessors, (8463), 193 states have call successors, (193), 69 states have call predecessors, (193), 57 states have return successors, (226), 165 states have call predecessors, (226), 193 states have call successors, (226) [2023-11-29 01:03:30,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6013 states to 6013 states and 8882 transitions. [2023-11-29 01:03:30,934 INFO L78 Accepts]: Start accepts. Automaton has 6013 states and 8882 transitions. Word has length 118 [2023-11-29 01:03:30,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:30,935 INFO L495 AbstractCegarLoop]: Abstraction has 6013 states and 8882 transitions. [2023-11-29 01:03:30,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 01:03:30,935 INFO L276 IsEmpty]: Start isEmpty. Operand 6013 states and 8882 transitions. [2023-11-29 01:03:30,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 01:03:30,937 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:30,937 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:30,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 01:03:31,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:03:31,138 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:31,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:31,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1823061689, now seen corresponding path program 1 times [2023-11-29 01:03:31,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:31,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186045339] [2023-11-29 01:03:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:31,182 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:31,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371621136] [2023-11-29 01:03:31,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:31,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:31,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:31,183 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:31,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 01:03:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:31,664 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:03:31,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:31,734 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:03:31,734 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:31,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:31,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186045339] [2023-11-29 01:03:31,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:31,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371621136] [2023-11-29 01:03:31,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371621136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:31,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:31,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 01:03:31,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451513990] [2023-11-29 01:03:31,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:31,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 01:03:31,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:31,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 01:03:31,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:03:31,736 INFO L87 Difference]: Start difference. First operand 6013 states and 8882 transitions. Second operand has 9 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 01:03:32,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:32,062 INFO L93 Difference]: Finished difference Result 10410 states and 15389 transitions. [2023-11-29 01:03:32,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:03:32,062 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 123 [2023-11-29 01:03:32,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:32,072 INFO L225 Difference]: With dead ends: 10410 [2023-11-29 01:03:32,072 INFO L226 Difference]: Without dead ends: 4518 [2023-11-29 01:03:32,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:03:32,083 INFO L413 NwaCegarLoop]: 599 mSDtfsCounter, 23 mSDsluCounter, 4154 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4753 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:32,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4753 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:03:32,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2023-11-29 01:03:32,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4516. [2023-11-29 01:03:32,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4315 states have (on average 1.4743916570104287) internal successors, (6362), 4338 states have internal predecessors, (6362), 137 states have call successors, (137), 59 states have call predecessors, (137), 53 states have return successors, (149), 118 states have call predecessors, (149), 137 states have call successors, (149) [2023-11-29 01:03:32,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6648 transitions. [2023-11-29 01:03:32,282 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6648 transitions. Word has length 123 [2023-11-29 01:03:32,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:32,283 INFO L495 AbstractCegarLoop]: Abstraction has 4516 states and 6648 transitions. [2023-11-29 01:03:32,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 9 states have internal predecessors, (113), 3 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-29 01:03:32,283 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6648 transitions. [2023-11-29 01:03:32,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 01:03:32,285 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:32,285 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:32,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-29 01:03:32,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:32,486 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:32,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:32,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1198226997, now seen corresponding path program 1 times [2023-11-29 01:03:32,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:32,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127820735] [2023-11-29 01:03:32,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:32,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:32,536 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:32,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614822796] [2023-11-29 01:03:32,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:32,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:32,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:32,538 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:32,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 01:03:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:33,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 01:03:33,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:33,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:03:33,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:03:33,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-29 01:03:33,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:03:33,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-29 01:03:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:03:33,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:33,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:33,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127820735] [2023-11-29 01:03:33,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:33,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614822796] [2023-11-29 01:03:33,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614822796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:33,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:33,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-29 01:03:33,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955698996] [2023-11-29 01:03:33,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:33,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 01:03:33,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:33,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 01:03:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:03:33,655 INFO L87 Difference]: Start difference. First operand 4516 states and 6648 transitions. Second operand has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:03:36,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:36,360 INFO L93 Difference]: Finished difference Result 9322 states and 13676 transitions. [2023-11-29 01:03:36,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 01:03:36,361 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 125 [2023-11-29 01:03:36,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:36,371 INFO L225 Difference]: With dead ends: 9322 [2023-11-29 01:03:36,371 INFO L226 Difference]: Without dead ends: 4889 [2023-11-29 01:03:36,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-29 01:03:36,378 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 1104 mSDsluCounter, 3821 mSDsCounter, 0 mSdLazyCounter, 1589 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 4377 SdHoareTripleChecker+Invalid, 1612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:36,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1116 Valid, 4377 Invalid, 1612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1589 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 01:03:36,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2023-11-29 01:03:36,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 4548. [2023-11-29 01:03:36,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 4347 states have (on average 1.4720496894409938) internal successors, (6399), 4370 states have internal predecessors, (6399), 137 states have call successors, (137), 59 states have call predecessors, (137), 53 states have return successors, (149), 118 states have call predecessors, (149), 137 states have call successors, (149) [2023-11-29 01:03:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6685 transitions. [2023-11-29 01:03:36,502 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 6685 transitions. Word has length 125 [2023-11-29 01:03:36,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:36,502 INFO L495 AbstractCegarLoop]: Abstraction has 4548 states and 6685 transitions. [2023-11-29 01:03:36,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.833333333333334) internal successors, (106), 11 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:03:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 6685 transitions. [2023-11-29 01:03:36,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 01:03:36,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:36,504 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:36,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 01:03:36,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:36,705 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:36,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:36,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2065699401, now seen corresponding path program 1 times [2023-11-29 01:03:36,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:36,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416466333] [2023-11-29 01:03:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:36,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:36,758 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:36,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016489522] [2023-11-29 01:03:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:36,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:36,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:36,760 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:36,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 01:03:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:37,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:03:37,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:03:37,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:03:37,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:03:37,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416466333] [2023-11-29 01:03:37,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:03:37,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016489522] [2023-11-29 01:03:37,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016489522] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:03:37,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:03:37,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:03:37,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706803953] [2023-11-29 01:03:37,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:03:37,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:03:37,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:03:37,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:03:37,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:37,207 INFO L87 Difference]: Start difference. First operand 4548 states and 6685 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:03:37,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:03:37,443 INFO L93 Difference]: Finished difference Result 9731 states and 14375 transitions. [2023-11-29 01:03:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:03:37,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 125 [2023-11-29 01:03:37,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:03:37,458 INFO L225 Difference]: With dead ends: 9731 [2023-11-29 01:03:37,458 INFO L226 Difference]: Without dead ends: 5286 [2023-11-29 01:03:37,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:03:37,467 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 148 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1780 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:03:37,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1780 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:03:37,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5286 states. [2023-11-29 01:03:37,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5286 to 4686. [2023-11-29 01:03:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4686 states, 4485 states have (on average 1.4595317725752508) internal successors, (6546), 4508 states have internal predecessors, (6546), 137 states have call successors, (137), 59 states have call predecessors, (137), 53 states have return successors, (149), 118 states have call predecessors, (149), 137 states have call successors, (149) [2023-11-29 01:03:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4686 states to 4686 states and 6832 transitions. [2023-11-29 01:03:37,693 INFO L78 Accepts]: Start accepts. Automaton has 4686 states and 6832 transitions. Word has length 125 [2023-11-29 01:03:37,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:03:37,693 INFO L495 AbstractCegarLoop]: Abstraction has 4686 states and 6832 transitions. [2023-11-29 01:03:37,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:03:37,693 INFO L276 IsEmpty]: Start isEmpty. Operand 4686 states and 6832 transitions. [2023-11-29 01:03:37,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 01:03:37,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:03:37,694 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:03:37,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 01:03:37,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:37,895 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:03:37,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:03:37,896 INFO L85 PathProgramCache]: Analyzing trace with hash 82785463, now seen corresponding path program 1 times [2023-11-29 01:03:37,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:03:37,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027118286] [2023-11-29 01:03:37,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:37,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:03:37,948 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:03:37,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884332322] [2023-11-29 01:03:37,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:03:37,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:03:37,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:03:37,950 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:03:37,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 01:03:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:03:38,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 01:03:38,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:03:38,686 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:03:38,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 22 [2023-11-29 01:03:46,883 WARN L293 SmtUtils]: Spent 7.64s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:03:59,297 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:04:10,785 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:04:22,873 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:04:39,725 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:04:51,790 WARN L293 SmtUtils]: Spent 8.02s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:05:04,081 WARN L293 SmtUtils]: Spent 8.04s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:05:20,517 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-11-29 01:05:33,398 WARN L854 $PredicateComparison]: unable to prove that (exists ((v_z_29 Int)) (let ((.cse3 (mod (+ (* 4294967295 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4276993779) 4294967296))) (and (exists ((v_y_26 Int) (v_y_29 Int)) (let ((.cse0 (* v_z_29 4294967295)) (.cse2 (* v_y_26 4294967296)) (.cse1 (* v_y_29 4294967296))) (and (= (+ (mod (+ 2690382803 |c_ULTIMATE.start_main_~_ha_hashv~0#1|) 4294967296) .cse0 .cse1) 4294967296) (<= (+ .cse2 |c_ULTIMATE.start_main_~_ha_hashv~0#1| .cse0 .cse1) 8553987558) (= (* .cse3 256) (+ 1099511627776 .cse2 (* v_z_29 4294967039) .cse1)) (<= (div (+ (div (+ (- 255) (div (+ 8553987302 (* v_z_29 (- 4294967295)) (* (- 1) |c_ULTIMATE.start_main_~_ha_hashv~0#1|)) 256)) 256) (- 255)) 256) (+ 254 (* v_y_26 256) (* v_y_29 256)))))) (<= 4294967296 (+ .cse3 v_z_29)) (<= v_z_29 4294967295)))) is different from false [2023-11-29 01:05:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:05:33,546 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:33,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:33,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027118286] [2023-11-29 01:05:33,547 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:05:33,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884332322] [2023-11-29 01:05:33,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884332322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:33,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:33,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-29 01:05:33,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252591275] [2023-11-29 01:05:33,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:33,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:05:33,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:33,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:05:33,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=108, Unknown=1, NotChecked=20, Total=156 [2023-11-29 01:05:33,549 INFO L87 Difference]: Start difference. First operand 4686 states and 6832 transitions. Second operand has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:36,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:36,295 INFO L93 Difference]: Finished difference Result 9423 states and 13746 transitions. [2023-11-29 01:05:36,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:05:36,296 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 126 [2023-11-29 01:05:36,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:36,307 INFO L225 Difference]: With dead ends: 9423 [2023-11-29 01:05:36,307 INFO L226 Difference]: Without dead ends: 4852 [2023-11-29 01:05:36,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=39, Invalid=174, Unknown=1, NotChecked=26, Total=240 [2023-11-29 01:05:36,314 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 28 mSDsluCounter, 4241 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 4839 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 4839 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1383 Invalid, 0 Unknown, 163 Unchecked, 2.4s Time] [2023-11-29 01:05:36,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2023-11-29 01:05:36,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 4817. [2023-11-29 01:05:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4817 states, 4616 states have (on average 1.4508232235701906) internal successors, (6697), 4639 states have internal predecessors, (6697), 137 states have call successors, (137), 59 states have call predecessors, (137), 53 states have return successors, (149), 118 states have call predecessors, (149), 137 states have call successors, (149) [2023-11-29 01:05:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4817 states to 4817 states and 6983 transitions. [2023-11-29 01:05:36,483 INFO L78 Accepts]: Start accepts. Automaton has 4817 states and 6983 transitions. Word has length 126 [2023-11-29 01:05:36,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:36,483 INFO L495 AbstractCegarLoop]: Abstraction has 4817 states and 6983 transitions. [2023-11-29 01:05:36,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.23076923076923) internal successors, (107), 13 states have internal predecessors, (107), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:36,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4817 states and 6983 transitions. [2023-11-29 01:05:36,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 01:05:36,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:36,485 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:36,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 01:05:36,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:36,686 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:05:36,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:36,686 INFO L85 PathProgramCache]: Analyzing trace with hash 2138590286, now seen corresponding path program 1 times [2023-11-29 01:05:36,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:36,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097703946] [2023-11-29 01:05:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:36,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:36,745 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:05:36,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987928811] [2023-11-29 01:05:36,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:36,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:36,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:36,747 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:36,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-29 01:05:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:37,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 01:05:37,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:37,500 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-29 01:05:37,500 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:05:37,717 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-29 01:05:37,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:37,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097703946] [2023-11-29 01:05:37,718 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:05:37,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987928811] [2023-11-29 01:05:37,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987928811] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:05:37,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:05:37,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2023-11-29 01:05:37,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339979226] [2023-11-29 01:05:37,719 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:05:37,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 01:05:37,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:37,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 01:05:37,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-11-29 01:05:37,721 INFO L87 Difference]: Start difference. First operand 4817 states and 6983 transitions. Second operand has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 14 states have internal predecessors, (136), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:05:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:38,526 INFO L93 Difference]: Finished difference Result 9528 states and 13852 transitions. [2023-11-29 01:05:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 01:05:38,527 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 14 states have internal predecessors, (136), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 127 [2023-11-29 01:05:38,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:38,543 INFO L225 Difference]: With dead ends: 9528 [2023-11-29 01:05:38,543 INFO L226 Difference]: Without dead ends: 4889 [2023-11-29 01:05:38,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=433, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:05:38,552 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 52 mSDsluCounter, 4163 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4763 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:38,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4763 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:05:38,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4889 states. [2023-11-29 01:05:38,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4889 to 4872. [2023-11-29 01:05:38,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4872 states, 4669 states have (on average 1.451702720068537) internal successors, (6778), 4688 states have internal predecessors, (6778), 137 states have call successors, (137), 65 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:05:38,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4872 states to 4872 states and 7060 transitions. [2023-11-29 01:05:38,816 INFO L78 Accepts]: Start accepts. Automaton has 4872 states and 7060 transitions. Word has length 127 [2023-11-29 01:05:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:38,816 INFO L495 AbstractCegarLoop]: Abstraction has 4872 states and 7060 transitions. [2023-11-29 01:05:38,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 11.333333333333334) internal successors, (136), 14 states have internal predecessors, (136), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:05:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4872 states and 7060 transitions. [2023-11-29 01:05:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 01:05:38,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:38,818 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:38,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-29 01:05:39,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:39,018 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:05:39,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:39,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1710166350, now seen corresponding path program 2 times [2023-11-29 01:05:39,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:39,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243523580] [2023-11-29 01:05:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:39,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:39,071 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:05:39,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [373650579] [2023-11-29 01:05:39,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:05:39,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:39,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:39,072 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:39,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-29 01:05:39,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 01:05:39,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:05:39,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:05:39,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:39,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 01:05:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 01:05:39,464 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:39,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:39,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243523580] [2023-11-29 01:05:39,464 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:05:39,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373650579] [2023-11-29 01:05:39,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373650579] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:39,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:39,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 01:05:39,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48213729] [2023-11-29 01:05:39,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:39,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:05:39,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:39,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:05:39,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:39,466 INFO L87 Difference]: Start difference. First operand 4872 states and 7060 transitions. Second operand has 3 states, 2 states have (on average 52.5) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:39,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:39,589 INFO L93 Difference]: Finished difference Result 4872 states and 7060 transitions. [2023-11-29 01:05:39,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:05:39,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 52.5) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 131 [2023-11-29 01:05:39,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:39,600 INFO L225 Difference]: With dead ends: 4872 [2023-11-29 01:05:39,600 INFO L226 Difference]: Without dead ends: 4871 [2023-11-29 01:05:39,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:05:39,603 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1217 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:39,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1217 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:05:39,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4871 states. [2023-11-29 01:05:39,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4871 to 4871. [2023-11-29 01:05:39,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4871 states, 4669 states have (on average 1.4504176483186977) internal successors, (6772), 4687 states have internal predecessors, (6772), 137 states have call successors, (137), 65 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:05:39,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4871 states to 4871 states and 7054 transitions. [2023-11-29 01:05:39,825 INFO L78 Accepts]: Start accepts. Automaton has 4871 states and 7054 transitions. Word has length 131 [2023-11-29 01:05:39,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:39,825 INFO L495 AbstractCegarLoop]: Abstraction has 4871 states and 7054 transitions. [2023-11-29 01:05:39,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 52.5) internal successors, (105), 3 states have internal predecessors, (105), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:39,825 INFO L276 IsEmpty]: Start isEmpty. Operand 4871 states and 7054 transitions. [2023-11-29 01:05:39,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 01:05:39,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:39,827 INFO L195 NwaCegarLoop]: trace histogram [6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:39,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-29 01:05:40,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 01:05:40,027 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:05:40,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:40,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1475549195, now seen corresponding path program 1 times [2023-11-29 01:05:40,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:40,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306762246] [2023-11-29 01:05:40,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:40,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:40,080 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:05:40,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141533791] [2023-11-29 01:05:40,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:40,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:40,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:40,082 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:40,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-29 01:05:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:40,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 849 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 01:05:40,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:05:40,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:05:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 01:05:41,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:41,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306762246] [2023-11-29 01:05:41,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:05:41,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141533791] [2023-11-29 01:05:41,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141533791] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:05:41,019 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:05:41,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9] total 21 [2023-11-29 01:05:41,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007573019] [2023-11-29 01:05:41,019 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:05:41,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-29 01:05:41,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:41,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-29 01:05:41,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2023-11-29 01:05:41,021 INFO L87 Difference]: Start difference. First operand 4871 states and 7054 transitions. Second operand has 21 states, 19 states have (on average 7.631578947368421) internal successors, (145), 21 states have internal predecessors, (145), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:05:42,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:42,692 INFO L93 Difference]: Finished difference Result 9279 states and 13477 transitions. [2023-11-29 01:05:42,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-11-29 01:05:42,693 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.631578947368421) internal successors, (145), 21 states have internal predecessors, (145), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 132 [2023-11-29 01:05:42,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:42,701 INFO L225 Difference]: With dead ends: 9279 [2023-11-29 01:05:42,701 INFO L226 Difference]: Without dead ends: 4443 [2023-11-29 01:05:42,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=328, Invalid=1232, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 01:05:42,709 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 152 mSDsluCounter, 6606 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 7125 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:42,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 7125 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 01:05:42,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4443 states. [2023-11-29 01:05:42,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4443 to 4420. [2023-11-29 01:05:42,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4420 states, 4218 states have (on average 1.4402560455192035) internal successors, (6075), 4236 states have internal predecessors, (6075), 137 states have call successors, (137), 65 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:05:42,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4420 states to 4420 states and 6357 transitions. [2023-11-29 01:05:42,882 INFO L78 Accepts]: Start accepts. Automaton has 4420 states and 6357 transitions. Word has length 132 [2023-11-29 01:05:42,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:42,883 INFO L495 AbstractCegarLoop]: Abstraction has 4420 states and 6357 transitions. [2023-11-29 01:05:42,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.631578947368421) internal successors, (145), 21 states have internal predecessors, (145), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:05:42,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4420 states and 6357 transitions. [2023-11-29 01:05:42,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 01:05:42,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:42,885 INFO L195 NwaCegarLoop]: trace histogram [15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:42,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-29 01:05:43,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 01:05:43,091 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:05:43,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:43,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2006076206, now seen corresponding path program 2 times [2023-11-29 01:05:43,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:43,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300577553] [2023-11-29 01:05:43,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:43,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:43,152 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:05:43,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009791972] [2023-11-29 01:05:43,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:05:43,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:43,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:43,154 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:43,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-29 01:05:44,599 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:05:44,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:05:44,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-29 01:05:44,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:44,831 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 6 proven. 124 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 01:05:44,832 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:05:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 75 proven. 15 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-29 01:05:45,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:45,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300577553] [2023-11-29 01:05:45,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:05:45,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009791972] [2023-11-29 01:05:45,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009791972] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:05:45,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:05:45,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 24 [2023-11-29 01:05:45,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190004508] [2023-11-29 01:05:45,248 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:05:45,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-29 01:05:45,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:45,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-29 01:05:45,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2023-11-29 01:05:45,250 INFO L87 Difference]: Start difference. First operand 4420 states and 6357 transitions. Second operand has 24 states, 22 states have (on average 6.681818181818182) internal successors, (147), 24 states have internal predecessors, (147), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:05:50,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:50,449 INFO L93 Difference]: Finished difference Result 8796 states and 12726 transitions. [2023-11-29 01:05:50,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-11-29 01:05:50,450 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 6.681818181818182) internal successors, (147), 24 states have internal predecessors, (147), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 141 [2023-11-29 01:05:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:50,459 INFO L225 Difference]: With dead ends: 8796 [2023-11-29 01:05:50,459 INFO L226 Difference]: Without dead ends: 4516 [2023-11-29 01:05:50,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=555, Invalid=2307, Unknown=0, NotChecked=0, Total=2862 [2023-11-29 01:05:50,467 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 565 mSDsluCounter, 6501 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 579 SdHoareTripleChecker+Valid, 6999 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:50,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [579 Valid, 6999 Invalid, 1076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-29 01:05:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2023-11-29 01:05:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 4466. [2023-11-29 01:05:50,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4264 states have (on average 1.4345684803001877) internal successors, (6117), 4280 states have internal predecessors, (6117), 137 states have call successors, (137), 67 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:05:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6399 transitions. [2023-11-29 01:05:50,692 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 6399 transitions. Word has length 141 [2023-11-29 01:05:50,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:50,692 INFO L495 AbstractCegarLoop]: Abstraction has 4466 states and 6399 transitions. [2023-11-29 01:05:50,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 6.681818181818182) internal successors, (147), 24 states have internal predecessors, (147), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:05:50,692 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 6399 transitions. [2023-11-29 01:05:50,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 01:05:50,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:50,693 INFO L195 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:50,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-29 01:05:50,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 01:05:50,894 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:05:50,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:50,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1088815989, now seen corresponding path program 3 times [2023-11-29 01:05:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:50,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379156008] [2023-11-29 01:05:50,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:50,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:50,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:05:50,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1290066078] [2023-11-29 01:05:50,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:05:50,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:50,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:50,961 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:50,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-29 01:05:52,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 01:05:52,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:05:52,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-29 01:05:52,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:52,319 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-11-29 01:05:52,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:52,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:52,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379156008] [2023-11-29 01:05:52,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:05:52,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1290066078] [2023-11-29 01:05:52,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1290066078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:52,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:52,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:05:52,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107896068] [2023-11-29 01:05:52,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:52,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:05:52,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:52,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:05:52,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:05:52,323 INFO L87 Difference]: Start difference. First operand 4466 states and 6399 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:52,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:52,916 INFO L93 Difference]: Finished difference Result 8906 states and 12784 transitions. [2023-11-29 01:05:52,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:05:52,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 148 [2023-11-29 01:05:52,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:52,926 INFO L225 Difference]: With dead ends: 8906 [2023-11-29 01:05:52,927 INFO L226 Difference]: Without dead ends: 4501 [2023-11-29 01:05:52,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:05:52,934 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 16 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:52,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2880 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 01:05:52,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2023-11-29 01:05:53,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4466. [2023-11-29 01:05:53,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4264 states have (on average 1.4345684803001877) internal successors, (6117), 4280 states have internal predecessors, (6117), 137 states have call successors, (137), 67 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:05:53,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6399 transitions. [2023-11-29 01:05:53,156 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 6399 transitions. Word has length 148 [2023-11-29 01:05:53,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:53,156 INFO L495 AbstractCegarLoop]: Abstraction has 4466 states and 6399 transitions. [2023-11-29 01:05:53,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 6399 transitions. [2023-11-29 01:05:53,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 01:05:53,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:53,158 INFO L195 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:53,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-11-29 01:05:53,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 01:05:53,358 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:05:53,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:53,359 INFO L85 PathProgramCache]: Analyzing trace with hash 121667933, now seen corresponding path program 1 times [2023-11-29 01:05:53,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:53,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56571848] [2023-11-29 01:05:53,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:53,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:53,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:05:53,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [609782616] [2023-11-29 01:05:53,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:53,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:53,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:53,415 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:53,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-29 01:05:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:53,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:05:53,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:05:54,144 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-11-29 01:05:54,144 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:05:54,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:05:54,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56571848] [2023-11-29 01:05:54,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:05:54,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609782616] [2023-11-29 01:05:54,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609782616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:05:54,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:05:54,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 01:05:54,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608351371] [2023-11-29 01:05:54,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:05:54,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:05:54,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:05:54,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:05:54,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:54,146 INFO L87 Difference]: Start difference. First operand 4466 states and 6399 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:05:54,558 INFO L93 Difference]: Finished difference Result 8914 states and 12796 transitions. [2023-11-29 01:05:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:05:54,559 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 149 [2023-11-29 01:05:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:05:54,568 INFO L225 Difference]: With dead ends: 8914 [2023-11-29 01:05:54,568 INFO L226 Difference]: Without dead ends: 4501 [2023-11-29 01:05:54,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:05:54,576 INFO L413 NwaCegarLoop]: 535 mSDtfsCounter, 10 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:05:54,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2436 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:05:54,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4501 states. [2023-11-29 01:05:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4501 to 4494. [2023-11-29 01:05:54,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4494 states, 4292 states have (on average 1.4333643988816402) internal successors, (6152), 4308 states have internal predecessors, (6152), 137 states have call successors, (137), 67 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:05:54,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4494 states to 4494 states and 6434 transitions. [2023-11-29 01:05:54,762 INFO L78 Accepts]: Start accepts. Automaton has 4494 states and 6434 transitions. Word has length 149 [2023-11-29 01:05:54,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:05:54,763 INFO L495 AbstractCegarLoop]: Abstraction has 4494 states and 6434 transitions. [2023-11-29 01:05:54,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:05:54,763 INFO L276 IsEmpty]: Start isEmpty. Operand 4494 states and 6434 transitions. [2023-11-29 01:05:54,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 01:05:54,764 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:05:54,764 INFO L195 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:05:54,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-11-29 01:05:54,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 01:05:54,968 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:05:54,968 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:05:54,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2080873102, now seen corresponding path program 1 times [2023-11-29 01:05:54,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:05:54,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507586554] [2023-11-29 01:05:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:54,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:05:55,018 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:05:55,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [986420264] [2023-11-29 01:05:55,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:05:55,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:05:55,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:05:55,019 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:05:55,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-29 01:05:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:05:59,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 01:05:59,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:00,071 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-11-29 01:06:00,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:06:00,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:00,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507586554] [2023-11-29 01:06:00,071 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:00,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986420264] [2023-11-29 01:06:00,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986420264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:06:00,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:06:00,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:06:00,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279001697] [2023-11-29 01:06:00,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:06:00,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:06:00,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:00,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:06:00,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:06:00,074 INFO L87 Difference]: Start difference. First operand 4494 states and 6434 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:06:00,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:00,599 INFO L93 Difference]: Finished difference Result 8958 states and 12849 transitions. [2023-11-29 01:06:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:06:00,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 149 [2023-11-29 01:06:00,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:00,605 INFO L225 Difference]: With dead ends: 8958 [2023-11-29 01:06:00,605 INFO L226 Difference]: Without dead ends: 4529 [2023-11-29 01:06:00,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:06:00,611 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 15 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2886 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:00,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2886 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:06:00,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2023-11-29 01:06:00,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 4494. [2023-11-29 01:06:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4494 states, 4292 states have (on average 1.4333643988816402) internal successors, (6152), 4308 states have internal predecessors, (6152), 137 states have call successors, (137), 67 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:06:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4494 states to 4494 states and 6434 transitions. [2023-11-29 01:06:00,781 INFO L78 Accepts]: Start accepts. Automaton has 4494 states and 6434 transitions. Word has length 149 [2023-11-29 01:06:00,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:00,781 INFO L495 AbstractCegarLoop]: Abstraction has 4494 states and 6434 transitions. [2023-11-29 01:06:00,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:06:00,782 INFO L276 IsEmpty]: Start isEmpty. Operand 4494 states and 6434 transitions. [2023-11-29 01:06:00,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 01:06:00,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:00,783 INFO L195 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:06:00,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-29 01:06:00,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 01:06:00,983 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:06:00,984 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:00,984 INFO L85 PathProgramCache]: Analyzing trace with hash 593024283, now seen corresponding path program 1 times [2023-11-29 01:06:00,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:00,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958805650] [2023-11-29 01:06:00,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:00,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:01,058 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:01,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [570698521] [2023-11-29 01:06:01,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:01,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:01,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:01,060 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:01,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-29 01:06:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:01,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 1090 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 01:06:01,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-11-29 01:06:01,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:06:01,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:01,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958805650] [2023-11-29 01:06:01,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:01,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570698521] [2023-11-29 01:06:01,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570698521] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:06:01,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:06:01,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 01:06:01,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135417320] [2023-11-29 01:06:01,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:06:01,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:06:01,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:01,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:06:01,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:06:01,804 INFO L87 Difference]: Start difference. First operand 4494 states and 6434 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:06:02,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:02,328 INFO L93 Difference]: Finished difference Result 8954 states and 12842 transitions. [2023-11-29 01:06:02,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 01:06:02,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 149 [2023-11-29 01:06:02,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:02,334 INFO L225 Difference]: With dead ends: 8954 [2023-11-29 01:06:02,334 INFO L226 Difference]: Without dead ends: 4529 [2023-11-29 01:06:02,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:06:02,339 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 45 mSDsluCounter, 2369 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:02,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 2892 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:06:02,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2023-11-29 01:06:02,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 4508. [2023-11-29 01:06:02,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4508 states, 4306 states have (on average 1.4319554110543429) internal successors, (6166), 4322 states have internal predecessors, (6166), 137 states have call successors, (137), 67 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:06:02,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4508 states to 4508 states and 6448 transitions. [2023-11-29 01:06:02,506 INFO L78 Accepts]: Start accepts. Automaton has 4508 states and 6448 transitions. Word has length 149 [2023-11-29 01:06:02,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:02,506 INFO L495 AbstractCegarLoop]: Abstraction has 4508 states and 6448 transitions. [2023-11-29 01:06:02,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:06:02,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4508 states and 6448 transitions. [2023-11-29 01:06:02,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 01:06:02,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:02,507 INFO L195 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:06:02,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-11-29 01:06:02,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-29 01:06:02,708 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:06:02,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash -425709478, now seen corresponding path program 1 times [2023-11-29 01:06:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:02,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116863589] [2023-11-29 01:06:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:02,774 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:02,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [365326866] [2023-11-29 01:06:02,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:02,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:02,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:02,775 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:02,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-29 01:06:05,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:05,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:06:05,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-11-29 01:06:05,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:06:05,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:05,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116863589] [2023-11-29 01:06:05,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:05,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365326866] [2023-11-29 01:06:05,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365326866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:06:05,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:06:05,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:06:05,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869247121] [2023-11-29 01:06:05,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:06:05,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:06:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:05,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:06:05,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:06:05,044 INFO L87 Difference]: Start difference. First operand 4508 states and 6448 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:06:05,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:05,330 INFO L93 Difference]: Finished difference Result 8991 states and 12871 transitions. [2023-11-29 01:06:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:06:05,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 150 [2023-11-29 01:06:05,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:05,341 INFO L225 Difference]: With dead ends: 8991 [2023-11-29 01:06:05,341 INFO L226 Difference]: Without dead ends: 4543 [2023-11-29 01:06:05,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:06:05,348 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 6 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:05,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1589 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:06:05,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4543 states. [2023-11-29 01:06:05,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4543 to 4501. [2023-11-29 01:06:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4501 states, 4299 states have (on average 1.431030472202838) internal successors, (6152), 4315 states have internal predecessors, (6152), 137 states have call successors, (137), 67 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:06:05,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 6434 transitions. [2023-11-29 01:06:05,501 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 6434 transitions. Word has length 150 [2023-11-29 01:06:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:05,501 INFO L495 AbstractCegarLoop]: Abstraction has 4501 states and 6434 transitions. [2023-11-29 01:06:05,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:06:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 6434 transitions. [2023-11-29 01:06:05,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 01:06:05,502 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:05,503 INFO L195 NwaCegarLoop]: trace histogram [22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:06:05,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-29 01:06:05,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-29 01:06:05,703 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:06:05,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:05,704 INFO L85 PathProgramCache]: Analyzing trace with hash 2065978080, now seen corresponding path program 1 times [2023-11-29 01:06:05,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:05,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805080452] [2023-11-29 01:06:05,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:05,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:05,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:05,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [976868729] [2023-11-29 01:06:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:05,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:05,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:05,789 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:05,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-29 01:06:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:06:07,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-29 01:06:07,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:06:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 159 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-11-29 01:06:08,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:06:08,912 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 6 proven. 201 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-11-29 01:06:08,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:06:08,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805080452] [2023-11-29 01:06:08,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:06:08,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976868729] [2023-11-29 01:06:08,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976868729] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:06:08,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:06:08,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 32 [2023-11-29 01:06:08,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969499346] [2023-11-29 01:06:08,913 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:06:08,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-11-29 01:06:08,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:06:08,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-11-29 01:06:08,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2023-11-29 01:06:08,915 INFO L87 Difference]: Start difference. First operand 4501 states and 6434 transitions. Second operand has 32 states, 30 states have (on average 5.233333333333333) internal successors, (157), 32 states have internal predecessors, (157), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:06:30,894 WARN L293 SmtUtils]: Spent 18.56s on a formula simplification that was a NOOP. DAG size: 64 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:06:43,072 WARN L293 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:06:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:06:59,015 INFO L93 Difference]: Finished difference Result 9028 states and 12997 transitions. [2023-11-29 01:06:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-11-29 01:06:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 5.233333333333333) internal successors, (157), 32 states have internal predecessors, (157), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 150 [2023-11-29 01:06:59,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:06:59,023 INFO L225 Difference]: With dead ends: 9028 [2023-11-29 01:06:59,023 INFO L226 Difference]: Without dead ends: 4638 [2023-11-29 01:06:59,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 49.2s TimeCoverageRelationStatistics Valid=1064, Invalid=3628, Unknown=0, NotChecked=0, Total=4692 [2023-11-29 01:06:59,028 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 72 mSDsluCounter, 10532 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 11063 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:06:59,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 11063 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 01:06:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4638 states. [2023-11-29 01:06:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4638 to 4597. [2023-11-29 01:06:59,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4597 states, 4395 states have (on average 1.4216154721274175) internal successors, (6248), 4411 states have internal predecessors, (6248), 137 states have call successors, (137), 67 states have call predecessors, (137), 55 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:06:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4597 states to 4597 states and 6530 transitions. [2023-11-29 01:06:59,336 INFO L78 Accepts]: Start accepts. Automaton has 4597 states and 6530 transitions. Word has length 150 [2023-11-29 01:06:59,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:06:59,337 INFO L495 AbstractCegarLoop]: Abstraction has 4597 states and 6530 transitions. [2023-11-29 01:06:59,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 5.233333333333333) internal successors, (157), 32 states have internal predecessors, (157), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 01:06:59,337 INFO L276 IsEmpty]: Start isEmpty. Operand 4597 states and 6530 transitions. [2023-11-29 01:06:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 01:06:59,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:06:59,338 INFO L195 NwaCegarLoop]: trace histogram [34, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:06:59,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-29 01:06:59,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-29 01:06:59,539 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:06:59,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:06:59,539 INFO L85 PathProgramCache]: Analyzing trace with hash -177970656, now seen corresponding path program 2 times [2023-11-29 01:06:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:06:59,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939450799] [2023-11-29 01:06:59,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:06:59,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:06:59,607 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:06:59,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036106128] [2023-11-29 01:06:59,607 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:06:59,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:06:59,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:06:59,608 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:06:59,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-29 01:07:03,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:07:03,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:07:03,368 INFO L262 TraceCheckSpWp]: Trace formula consists of 1271 conjuncts, 257 conjunts are in the unsatisfiable core [2023-11-29 01:07:03,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:07:03,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-29 01:07:03,686 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-29 01:07:03,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-29 01:07:03,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 01:07:03,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-29 01:07:05,245 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 01:07:05,245 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33 [2023-11-29 01:07:05,559 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:05,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2352 treesize of output 1692 [2023-11-29 01:07:05,598 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:05,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2551 treesize of output 1823 [2023-11-29 01:07:05,626 INFO L349 Elim1Store]: treesize reduction 55, result has 8.3 percent of original size [2023-11-29 01:07:05,627 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1432 treesize of output 922 [2023-11-29 01:07:05,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 22 [2023-11-29 01:07:05,671 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:05,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1336 treesize of output 1 [2023-11-29 01:07:05,705 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:05,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2455 treesize of output 1759 [2023-11-29 01:07:05,732 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:05,733 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2256 treesize of output 1628 [2023-11-29 01:07:05,768 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:05,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2360 treesize of output 1692 [2023-11-29 01:07:05,811 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:05,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4423 treesize of output 3071 [2023-11-29 01:07:05,852 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:05,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4858 treesize of output 3382 [2023-11-29 01:07:05,902 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:05,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 5056 treesize of output 3522 [2023-11-29 01:07:05,938 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:05,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2568 treesize of output 1838 [2023-11-29 01:07:05,979 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:05,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3774 treesize of output 2695 [2023-11-29 01:07:06,016 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2352 treesize of output 1692 [2023-11-29 01:07:06,047 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2551 treesize of output 1823 [2023-11-29 01:07:06,068 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:06,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1432 treesize of output 1 [2023-11-29 01:07:06,111 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3227 treesize of output 2310 [2023-11-29 01:07:06,151 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,151 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4389 treesize of output 3045 [2023-11-29 01:07:06,184 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:06,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2100 treesize of output 1500 [2023-11-29 01:07:06,218 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2042 treesize of output 1486 [2023-11-29 01:07:06,248 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2241 treesize of output 1617 [2023-11-29 01:07:06,268 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:06,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1227 treesize of output 1 [2023-11-29 01:07:06,303 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2295 treesize of output 1663 [2023-11-29 01:07:06,372 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2494 treesize of output 1794 [2023-11-29 01:07:06,396 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:06,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1375 treesize of output 1 [2023-11-29 01:07:06,424 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:06,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2466 treesize of output 1807 [2023-11-29 01:07:06,463 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4358 treesize of output 3036 [2023-11-29 01:07:06,499 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4793 treesize of output 3347 [2023-11-29 01:07:06,532 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2199 treesize of output 1599 [2023-11-29 01:07:06,554 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2398 treesize of output 1730 [2023-11-29 01:07:06,575 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:06,576 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1279 treesize of output 1 [2023-11-29 01:07:06,612 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4991 treesize of output 3487 [2023-11-29 01:07:06,640 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:06,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2503 treesize of output 1803 [2023-11-29 01:07:06,670 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3709 treesize of output 2660 [2023-11-29 01:07:06,706 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2295 treesize of output 1663 [2023-11-29 01:07:06,736 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2494 treesize of output 1794 [2023-11-29 01:07:06,757 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:06,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1375 treesize of output 1 [2023-11-29 01:07:06,785 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:06,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2202 treesize of output 1613 [2023-11-29 01:07:06,823 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3162 treesize of output 2275 [2023-11-29 01:07:06,851 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4324 treesize of output 3010 [2023-11-29 01:07:06,867 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:06,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1170 treesize of output 1 [2023-11-29 01:07:06,890 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2184 treesize of output 1588 [2023-11-29 01:07:06,920 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:06,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 1985 treesize of output 1457 [2023-11-29 01:07:06,961 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 5525 treesize of output 3859 [2023-11-29 01:07:06,991 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:06,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4113 treesize of output 2934 [2023-11-29 01:07:07,016 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:07,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2828 treesize of output 2030 [2023-11-29 01:07:07,042 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:07,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1541 treesize of output 1 [2023-11-29 01:07:07,070 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2566 treesize of output 1834 [2023-11-29 01:07:07,104 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2765 treesize of output 1965 [2023-11-29 01:07:07,137 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2455 treesize of output 1759 [2023-11-29 01:07:07,163 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2256 treesize of output 1628 [2023-11-29 01:07:07,188 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:07,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1336 treesize of output 1 [2023-11-29 01:07:07,260 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:07,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 3566 treesize of output 2549 [2023-11-29 01:07:07,294 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:07,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4858 treesize of output 3382 [2023-11-29 01:07:07,318 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:07,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2531 treesize of output 1842 [2023-11-29 01:07:07,361 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:07,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 4892 treesize of output 3408 [2023-11-29 01:07:07,387 INFO L349 Elim1Store]: treesize reduction 391, result has 0.3 percent of original size [2023-11-29 01:07:07,388 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 10 new quantified variables, introduced 12 case distinctions, treesize of input 5327 treesize of output 3719 [2023-11-29 01:07:07,413 INFO L349 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2023-11-29 01:07:07,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 8 new quantified variables, introduced 9 case distinctions, treesize of input 2795 treesize of output 2036 [2023-11-29 01:07:07,432 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:07,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1541 treesize of output 1 [2023-11-29 01:07:07,457 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2566 treesize of output 1834 [2023-11-29 01:07:07,486 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2765 treesize of output 1965 [2023-11-29 01:07:07,518 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2669 treesize of output 1901 [2023-11-29 01:07:07,544 INFO L349 Elim1Store]: treesize reduction 299, result has 0.3 percent of original size [2023-11-29 01:07:07,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 9 new quantified variables, introduced 11 case distinctions, treesize of input 2470 treesize of output 1770 [2023-11-29 01:07:07,564 INFO L349 Elim1Store]: treesize reduction 59, result has 1.7 percent of original size [2023-11-29 01:07:07,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 1445 treesize of output 1 [2023-11-29 01:07:07,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 01:07:17,088 INFO L349 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2023-11-29 01:07:17,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22 [2023-11-29 01:07:17,522 INFO L349 Elim1Store]: treesize reduction 507, result has 11.8 percent of original size [2023-11-29 01:07:17,522 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 690 treesize of output 500 [2023-11-29 01:07:17,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:07:17,546 INFO L349 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2023-11-29 01:07:17,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 257 treesize of output 206 [2023-11-29 01:07:17,682 INFO L349 Elim1Store]: treesize reduction 167, result has 0.6 percent of original size [2023-11-29 01:07:17,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 504 treesize of output 358 [2023-11-29 01:07:17,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:07:19,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 01:07:19,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-29 01:07:19,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2023-11-29 01:07:19,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2023-11-29 01:07:19,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2023-11-29 01:07:19,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 70 [2023-11-29 01:07:20,241 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 82 [2023-11-29 01:07:20,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:07:20,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 77 treesize of output 94 [2023-11-29 01:07:21,144 INFO L349 Elim1Store]: treesize reduction 252, result has 23.9 percent of original size [2023-11-29 01:07:21,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 1002 treesize of output 767 [2023-11-29 01:07:21,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:07:21,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 370 [2023-11-29 01:07:21,260 INFO L349 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2023-11-29 01:07:21,260 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 817 treesize of output 769 [2023-11-29 01:07:21,327 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:07:21,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 355 treesize of output 360 [2023-11-29 01:07:21,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 347 treesize of output 343 [2023-11-29 01:07:21,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 343 treesize of output 341 [2023-11-29 01:07:21,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 341 treesize of output 337 [2023-11-29 01:07:21,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 337 treesize of output 329 [2023-11-29 01:07:21,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2023-11-29 01:07:22,381 INFO L349 Elim1Store]: treesize reduction 120, result has 13.7 percent of original size [2023-11-29 01:07:22,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 306 treesize of output 162 [2023-11-29 01:07:22,405 INFO L349 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2023-11-29 01:07:22,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 243 treesize of output 199 [2023-11-29 01:07:22,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 58 [2023-11-29 01:07:23,085 INFO L349 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-11-29 01:07:23,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 227 treesize of output 86 [2023-11-29 01:07:23,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 30 disjoint index pairs (out of 28 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 89 [2023-11-29 01:07:23,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 46 [2023-11-29 01:07:23,102 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 01:07:23,400 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 7 proven. 603 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 01:07:23,400 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:07:23,615 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse11 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse9 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11)) (.cse10 (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11))) (let ((.cse0 (mod |c_ULTIMATE.start_main_~_ha_bkt~0#1| 4294967296)) (.cse5 (select (select |c_#memory_$Pointer$#4.base| .cse9) .cse10))) (let ((.cse6 (select |c_#memory_int#4| .cse5)) (.cse3 (* .cse0 12)) (.cse4 (select (select |c_#memory_$Pointer$#4.offset| .cse9) .cse10))) (and (or (< 2147483647 .cse0) (forall ((v_ArrVal_9037 (Array Int Int))) (let ((.cse2 (+ .cse3 4 .cse4))) (let ((.cse1 (select (store (store |c_#memory_int#4| .cse5 (store .cse6 .cse2 (+ (select .cse6 .cse2) 1))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_9037) .cse5))) (< (mod (select .cse1 .cse2) 4294967296) (* (mod (+ 5 (* 5 (select .cse1 (+ .cse3 8 .cse4)))) 2147483648) 2)))))) (or (forall ((v_ArrVal_9037 (Array Int Int))) (let ((.cse8 (+ .cse3 .cse4 (- 51539607548)))) (let ((.cse7 (select (store (store |c_#memory_int#4| .cse5 (store .cse6 .cse8 (+ (select .cse6 .cse8) 1))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_9037) .cse5))) (< (mod (select .cse7 .cse8) 4294967296) (* 2 (mod (+ 5 (* (select .cse7 (+ (- 51539607544) .cse3 .cse4)) 5)) 2147483648)))))) (< .cse0 2147483648))))))) is different from false [2023-11-29 01:07:23,663 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse11 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse9 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11)) (.cse10 (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11))) (let ((.cse6 (mod |c_ULTIMATE.start_main_#t~nondet117#1| 4294967296)) (.cse4 (select (select |c_#memory_$Pointer$#4.base| .cse9) .cse10))) (let ((.cse5 (select |c_#memory_int#4| .cse4)) (.cse2 (select (select |c_#memory_$Pointer$#4.offset| .cse9) .cse10)) (.cse3 (* .cse6 12))) (and (or (forall ((v_ArrVal_9037 (Array Int Int))) (let ((.cse1 (+ .cse2 (- 51539607548) .cse3))) (let ((.cse0 (select (store (store |c_#memory_int#4| .cse4 (store .cse5 .cse1 (+ (select .cse5 .cse1) 1))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_9037) .cse4))) (< (mod (select .cse0 .cse1) 4294967296) (* (mod (+ 5 (* (select .cse0 (+ (- 51539607544) .cse2 .cse3)) 5)) 2147483648) 2))))) (< .cse6 2147483648)) (or (forall ((v_ArrVal_9037 (Array Int Int))) (let ((.cse8 (+ 4 .cse2 .cse3))) (let ((.cse7 (select (store (store |c_#memory_int#4| .cse4 (store .cse5 .cse8 (+ (select .cse5 .cse8) 1))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_9037) .cse4))) (< (mod (select .cse7 .cse8) 4294967296) (* 2 (mod (+ 5 (* 5 (select .cse7 (+ 8 .cse2 .cse3)))) 2147483648)))))) (< 2147483647 .cse6))))))) is different from false [2023-11-29 01:07:23,968 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9037 (Array Int Int)) (v_ArrVal_9031 Int) (v_ArrVal_9034 (Array Int Int)) (v_ArrVal_9033 (Array Int Int))) (let ((.cse11 (+ |c_ULTIMATE.start_main_~users~0#1.offset| 8))) (let ((.cse6 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11)) (.cse12 (+ (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~users~0#1.base|) .cse11) 12))) (or (let ((.cse10 (store |c_#memory_$Pointer$#4.offset| .cse6 (store (select |c_#memory_$Pointer$#4.offset| .cse6) .cse12 v_ArrVal_9031))) (.cse7 (store |c_#memory_$Pointer$#4.base| .cse6 v_ArrVal_9034))) (let ((.cse8 (select (select .cse7 |c_ULTIMATE.start_main_~users~0#1.base|) .cse11)) (.cse9 (select (select .cse10 |c_ULTIMATE.start_main_~users~0#1.base|) .cse11))) (let ((.cse2 (select (select .cse10 .cse8) .cse9))) (let ((.cse1 (+ .cse2 4))) (let ((.cse0 (let ((.cse4 (select (select .cse7 .cse8) .cse9))) (select (store (let ((.cse3 (store |c_#memory_int#4| .cse6 v_ArrVal_9033))) (store .cse3 .cse4 (let ((.cse5 (select .cse3 .cse4))) (store .cse5 .cse1 (+ (select .cse5 .cse1) 1))))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_9037) .cse4)))) (< (mod (select .cse0 .cse1) 4294967296) (* 2 (mod (+ (* (select .cse0 (+ .cse2 8)) 5) 5) 2147483648)))))))) (not (= (store (select |c_#memory_$Pointer$#4.base| .cse6) .cse12 (select v_ArrVal_9034 .cse12)) v_ArrVal_9034)))))) is different from false [2023-11-29 01:07:23,991 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_9037 (Array Int Int)) (v_ArrVal_9031 Int) (v_ArrVal_9034 (Array Int Int)) (v_ArrVal_9033 (Array Int Int))) (let ((.cse12 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (let ((.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse12)) (.cse1 (+ (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse12) 12))) (or (not (= (store (select |c_#memory_$Pointer$#4.base| .cse0) .cse1 (select v_ArrVal_9034 .cse1)) v_ArrVal_9034)) (let ((.cse11 (store |c_#memory_$Pointer$#4.offset| .cse0 (store (select |c_#memory_$Pointer$#4.offset| .cse0) .cse1 v_ArrVal_9031))) (.cse8 (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_9034))) (let ((.cse9 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse12)) (.cse10 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse12))) (let ((.cse4 (select (select .cse11 .cse9) .cse10))) (let ((.cse3 (+ 4 .cse4))) (let ((.cse2 (let ((.cse6 (select (select .cse8 .cse9) .cse10))) (select (store (let ((.cse5 (store |c_#memory_int#4| .cse0 v_ArrVal_9033))) (store .cse5 .cse6 (let ((.cse7 (select .cse5 .cse6))) (store .cse7 .cse3 (+ (select .cse7 .cse3) 1))))) |c_ULTIMATE.start_main_~user~0#1.base| v_ArrVal_9037) .cse6)))) (< (mod (select .cse2 .cse3) 4294967296) (* 2 (mod (+ (* (select .cse2 (+ 8 .cse4)) 5) 5) 2147483648)))))))))))) is different from false [2023-11-29 01:07:30,429 WARN L293 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 223 DAG size of output: 220 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-29 01:07:31,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:07:31,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 1823 treesize of output 1634 [2023-11-29 01:07:31,969 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:07:31,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 1868 treesize of output 4896 [2023-11-29 01:07:32,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1372 treesize of output 888 [2023-11-29 01:07:32,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 564 treesize of output 322 [2023-11-29 01:07:33,522 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse17 (+ 5 |c_ULTIMATE.start_main_#t~mem103#1.offset|)) (.cse20 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 6)) (.cse16 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 1)) (.cse18 (+ 2 |c_ULTIMATE.start_main_#t~mem103#1.offset|)) (.cse19 (+ |c_ULTIMATE.start_main_#t~mem103#1.offset| 3)) (.cse4 (+ |c_ULTIMATE.start_main_~user~0#1.offset| 8))) (and (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073)) (.cse5 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074))) (let ((.cse2 (+ (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12)) (.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (or (not (= (store (select .cse0 .cse1) .cse2 (select v_ArrVal_9034 .cse2)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (not (= (select (let ((.cse3 (store .cse0 .cse1 v_ArrVal_9034))) (select .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (select (select (store .cse5 .cse1 (store (select .cse5 .cse1) .cse2 v_ArrVal_9031)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) .cse1))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse11 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse6 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse7 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse8 (+ (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse6 .cse7) .cse8 (select v_ArrVal_9034 .cse8)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse9 (select (let ((.cse10 (store .cse6 .cse7 v_ArrVal_9034))) (select .cse10 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (select (select (store .cse11 .cse7 (store (select .cse11 .cse7) .cse8 v_ArrVal_9031)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))) (or (= .cse9 |c_ULTIMATE.start_main_#t~mem103#1.base|) (= .cse9 |c_ULTIMATE.start_main_~user~0#1.base|)))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse22 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse12 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse13 (select (select .cse12 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse14 (+ (select (select .cse22 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse12 .cse13) .cse14 (select v_ArrVal_9034 .cse14)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse15 (let ((.cse21 (store .cse22 .cse13 (store (select .cse22 .cse13) .cse14 v_ArrVal_9031)))) (select (select .cse21 (select (select (store .cse12 .cse13 v_ArrVal_9034) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select (select .cse21 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))) (or (= .cse15 .cse16) (= .cse17 .cse15) (= .cse15 .cse18) (= .cse15 |c_ULTIMATE.start_main_#t~mem103#1.offset|) (= .cse15 .cse19) (= .cse20 .cse15)))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse27 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse23 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse24 (select (select .cse23 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse25 (+ (select (select .cse27 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse23 .cse24) .cse25 (select v_ArrVal_9034 .cse25)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (not (= (select (let ((.cse26 (store .cse23 .cse24 v_ArrVal_9034))) (select .cse26 (select (select .cse26 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (select (select (store .cse27 .cse24 (store (select .cse27 .cse24) .cse25 v_ArrVal_9031)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) |c_ULTIMATE.start_main_~user~0#1.base|))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse36 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse28 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse29 (select (select .cse28 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse30 (+ (select (select .cse36 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse28 .cse29) .cse30 (select v_ArrVal_9034 .cse30)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse35 (store .cse36 .cse29 (store (select .cse36 .cse29) .cse30 v_ArrVal_9031))) (.cse32 (store .cse28 .cse29 v_ArrVal_9034))) (let ((.cse33 (select (select .cse32 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse34 (select (select .cse35 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse31 (select (select .cse35 .cse33) .cse34))) (or (= .cse31 .cse16) (= (select (select .cse32 .cse33) .cse34) .cse29) (= .cse31 .cse18) (= .cse31 |c_ULTIMATE.start_main_#t~mem103#1.offset|) (= .cse31 .cse19)))))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse41 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse37 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse38 (select (select .cse37 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse39 (+ (select (select .cse41 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse37 .cse38) .cse39 (select v_ArrVal_9034 .cse39)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (= (select (let ((.cse40 (store .cse37 .cse38 v_ArrVal_9034))) (select .cse40 (select (select .cse40 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (select (select (store .cse41 .cse38 (store (select .cse41 .cse38) .cse39 v_ArrVal_9031)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) |c_ULTIMATE.start_main_#t~mem103#1.base|)))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse50 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse42 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse43 (select (select .cse42 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse44 (+ (select (select .cse50 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse42 .cse43) .cse44 (select v_ArrVal_9034 .cse44)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse49 (store .cse50 .cse43 (store (select .cse50 .cse43) .cse44 v_ArrVal_9031))) (.cse46 (store .cse42 .cse43 v_ArrVal_9034))) (let ((.cse47 (select (select .cse46 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse48 (select (select .cse49 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse45 (select (select .cse49 .cse47) .cse48))) (or (= .cse45 .cse16) (= .cse17 .cse45) (= .cse45 .cse18) (= .cse45 |c_ULTIMATE.start_main_#t~mem103#1.offset|) (= .cse45 .cse19) (= .cse20 .cse45) (= (select (select .cse46 .cse47) .cse48) |c_ULTIMATE.start_main_~user~0#1.base|)))))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse56 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse51 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse52 (select (select .cse51 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse53 (+ (select (select .cse56 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse51 .cse52) .cse53 (select v_ArrVal_9034 .cse53)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse54 (select (let ((.cse55 (store .cse51 .cse52 v_ArrVal_9034))) (select .cse55 (select (select .cse55 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (select (select (store .cse56 .cse52 (store (select .cse56 .cse52) .cse53 v_ArrVal_9031)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))) (or (= .cse54 |c_ULTIMATE.start_main_#t~mem103#1.base|) (= .cse54 .cse52)))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse62 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse57 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse58 (select (select .cse57 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse59 (+ (select (select .cse62 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse57 .cse58) .cse59 (select v_ArrVal_9034 .cse59)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse60 (select (let ((.cse61 (store .cse57 .cse58 v_ArrVal_9034))) (select .cse61 (select (select .cse61 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (select (select (store .cse62 .cse58 (store (select .cse62 .cse58) .cse59 v_ArrVal_9031)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))) (or (not (= .cse60 .cse58)) (= .cse60 |c_ULTIMATE.start_main_~user~0#1.base|)))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse68 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse63 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse64 (select (select .cse63 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse65 (+ (select (select .cse68 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse63 .cse64) .cse65 (select v_ArrVal_9034 .cse65)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse66 (let ((.cse67 (store .cse68 .cse64 (store (select .cse68 .cse64) .cse65 v_ArrVal_9031)))) (select (select .cse67 (select (select (store .cse63 .cse64 v_ArrVal_9034) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (select (select .cse67 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))))) (or (= .cse66 .cse16) (= .cse66 .cse18) (= .cse66 |c_ULTIMATE.start_main_#t~mem103#1.offset|) (= .cse66 .cse19) (= |c_ULTIMATE.start_main_#t~mem103#1.offset| (+ .cse66 1)) (= |c_ULTIMATE.start_main_#t~mem103#1.offset| (+ .cse66 4)) (= |c_ULTIMATE.start_main_#t~mem103#1.offset| (+ .cse66 2)) (= (+ .cse66 3) |c_ULTIMATE.start_main_#t~mem103#1.offset|)))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse74 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse69 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse70 (select (select .cse69 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse71 (+ (select (select .cse74 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse69 .cse70) .cse71 (select v_ArrVal_9034 .cse71)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse72 (select (let ((.cse73 (store .cse69 .cse70 v_ArrVal_9034))) (select .cse73 (select (select .cse73 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (select (select (store .cse74 .cse70 (store (select .cse74 .cse70) .cse71 v_ArrVal_9031)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))) (or (= .cse72 .cse70) (not (= .cse72 |c_ULTIMATE.start_main_~user~0#1.base|))))))))) (forall ((v_ArrVal_9074 (Array Int Int)) (v_ArrVal_9073 (Array Int Int)) (v_ArrVal_9034 (Array Int Int))) (let ((.cse83 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9074)) (.cse75 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem103#1.base| v_ArrVal_9073))) (let ((.cse76 (select (select .cse75 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse77 (+ (select (select .cse83 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) 12))) (or (not (= (store (select .cse75 .cse76) .cse77 (select v_ArrVal_9034 .cse77)) v_ArrVal_9034)) (forall ((v_ArrVal_9031 Int)) (let ((.cse82 (store .cse83 .cse76 (store (select .cse83 .cse76) .cse77 v_ArrVal_9031))) (.cse79 (store .cse75 .cse76 v_ArrVal_9034))) (let ((.cse80 (select (select .cse79 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)) (.cse81 (select (select .cse82 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse78 (select (select .cse82 .cse80) .cse81))) (or (= .cse78 .cse16) (= .cse78 .cse18) (= .cse78 |c_ULTIMATE.start_main_#t~mem103#1.offset|) (= .cse78 .cse19) (= |c_ULTIMATE.start_main_#t~mem103#1.offset| (+ .cse78 1)) (= |c_ULTIMATE.start_main_#t~mem103#1.offset| (+ .cse78 4)) (= |c_ULTIMATE.start_main_#t~mem103#1.offset| (+ .cse78 2)) (= (+ .cse78 3) |c_ULTIMATE.start_main_#t~mem103#1.offset|) (= (select (select .cse79 .cse80) .cse81) |c_ULTIMATE.start_main_~user~0#1.base|)))))))))))) is different from false [2023-11-29 01:07:33,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:07:33,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939450799] [2023-11-29 01:07:33,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:07:33,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036106128] [2023-11-29 01:07:33,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036106128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:07:33,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:07:33,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57] total 57 [2023-11-29 01:07:33,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101284319] [2023-11-29 01:07:33,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-29 01:07:33,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-11-29 01:07:33,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:07:33,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-11-29 01:07:33,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=3269, Unknown=26, NotChecked=590, Total=4032 [2023-11-29 01:07:33,610 INFO L87 Difference]: Start difference. First operand 4597 states and 6530 transitions. Second operand has 57 states, 51 states have (on average 2.843137254901961) internal successors, (145), 51 states have internal predecessors, (145), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:07:38,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:07:44,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:07:53,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:07:57,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:02,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:07,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:14,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:21,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:28,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:35,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:40,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:48,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:08:57,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:05,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:13,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:22,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:30,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:33,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:45,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:51,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:09:57,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.66s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:04,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:11,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:16,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:22,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:28,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:33,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:40,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:48,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:10:57,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:05,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:09,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:17,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:18,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:25,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:32,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:37,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:39,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:48,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:51,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:11:55,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:00,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:03,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:08,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:12,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:16,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:21,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:25,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:26,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:30,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:35,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:39,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:43,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:51,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:12:56,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:00,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:06,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:13,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:17,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:22,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:22,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:22,360 INFO L93 Difference]: Finished difference Result 10441 states and 14959 transitions. [2023-11-29 01:13:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 01:13:22,361 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 51 states have (on average 2.843137254901961) internal successors, (145), 51 states have internal predecessors, (145), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 162 [2023-11-29 01:13:22,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:22,369 INFO L225 Difference]: With dead ends: 10441 [2023-11-29 01:13:22,369 INFO L226 Difference]: Without dead ends: 6014 [2023-11-29 01:13:22,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 128 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 2401 ImplicationChecksByTransitivity, 116.6s TimeCoverageRelationStatistics Valid=538, Invalid=11826, Unknown=88, NotChecked=1120, Total=13572 [2023-11-29 01:13:22,378 INFO L413 NwaCegarLoop]: 771 mSDtfsCounter, 469 mSDsluCounter, 30585 mSDsCounter, 0 mSdLazyCounter, 9171 mSolverCounterSat, 44 mSolverCounterUnsat, 103 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 244.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 31356 SdHoareTripleChecker+Invalid, 9318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 9171 IncrementalHoareTripleChecker+Invalid, 103 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 245.8s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:22,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 31356 Invalid, 9318 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 9171 Invalid, 103 Unknown, 0 Unchecked, 245.8s Time] [2023-11-29 01:13:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2023-11-29 01:13:22,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 4677. [2023-11-29 01:13:22,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4677 states, 4469 states have (on average 1.418214365629895) internal successors, (6338), 4483 states have internal predecessors, (6338), 137 states have call successors, (137), 71 states have call predecessors, (137), 61 states have return successors, (153), 122 states have call predecessors, (153), 137 states have call successors, (153) [2023-11-29 01:13:22,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4677 states to 4677 states and 6628 transitions. [2023-11-29 01:13:22,697 INFO L78 Accepts]: Start accepts. Automaton has 4677 states and 6628 transitions. Word has length 162 [2023-11-29 01:13:22,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:22,697 INFO L495 AbstractCegarLoop]: Abstraction has 4677 states and 6628 transitions. [2023-11-29 01:13:22,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 51 states have (on average 2.843137254901961) internal successors, (145), 51 states have internal predecessors, (145), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-29 01:13:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand 4677 states and 6628 transitions. [2023-11-29 01:13:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 01:13:22,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:22,698 INFO L195 NwaCegarLoop]: trace histogram [34, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:22,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-11-29 01:13:22,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:22,899 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:13:22,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:22,899 INFO L85 PathProgramCache]: Analyzing trace with hash 2122851934, now seen corresponding path program 1 times [2023-11-29 01:13:22,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:22,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409723424] [2023-11-29 01:13:22,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:22,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:22,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:13:22,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738226281] [2023-11-29 01:13:22,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:22,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:22,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:22,975 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:22,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-29 01:13:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:28,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-29 01:13:28,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:28,798 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 640 trivial. 0 not checked. [2023-11-29 01:13:28,798 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:13:28,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:28,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409723424] [2023-11-29 01:13:28,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:13:28,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738226281] [2023-11-29 01:13:28,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738226281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:13:28,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:13:28,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:13:28,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672262510] [2023-11-29 01:13:28,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:13:28,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:13:28,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:28,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:13:28,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:13:28,800 INFO L87 Difference]: Start difference. First operand 4677 states and 6628 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:13:31,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-29 01:13:32,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:13:32,379 INFO L93 Difference]: Finished difference Result 9386 states and 13327 transitions. [2023-11-29 01:13:32,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 01:13:32,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 162 [2023-11-29 01:13:32,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:13:32,388 INFO L225 Difference]: With dead ends: 9386 [2023-11-29 01:13:32,388 INFO L226 Difference]: Without dead ends: 4775 [2023-11-29 01:13:32,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:13:32,392 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 23 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:13:32,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 4312 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 709 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-29 01:13:32,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4775 states. [2023-11-29 01:13:32,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4775 to 4754. [2023-11-29 01:13:32,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4754 states, 4546 states have (on average 1.4157501099868015) internal successors, (6436), 4560 states have internal predecessors, (6436), 137 states have call successors, (137), 71 states have call predecessors, (137), 61 states have return successors, (153), 122 states have call predecessors, (153), 137 states have call successors, (153) [2023-11-29 01:13:32,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4754 states to 4754 states and 6726 transitions. [2023-11-29 01:13:32,748 INFO L78 Accepts]: Start accepts. Automaton has 4754 states and 6726 transitions. Word has length 162 [2023-11-29 01:13:32,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:13:32,748 INFO L495 AbstractCegarLoop]: Abstraction has 4754 states and 6726 transitions. [2023-11-29 01:13:32,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-11-29 01:13:32,749 INFO L276 IsEmpty]: Start isEmpty. Operand 4754 states and 6726 transitions. [2023-11-29 01:13:32,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-11-29 01:13:32,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:13:32,750 INFO L195 NwaCegarLoop]: trace histogram [34, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:13:32,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2023-11-29 01:13:32,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-29 01:13:32,950 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:13:32,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:13:32,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1661316870, now seen corresponding path program 1 times [2023-11-29 01:13:32,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:13:32,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004347962] [2023-11-29 01:13:32,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:32,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:13:33,026 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:13:33,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [991889513] [2023-11-29 01:13:33,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:13:33,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:13:33,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:13:33,027 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:13:33,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-29 01:13:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:13:34,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 82 conjunts are in the unsatisfiable core [2023-11-29 01:13:34,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:13:35,552 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 16 proven. 576 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-29 01:13:35,552 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:13:36,655 INFO L134 CoverageAnalysis]: Checked inductivity of 646 backedges. 308 proven. 78 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2023-11-29 01:13:36,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:13:36,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004347962] [2023-11-29 01:13:36,656 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:13:36,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [991889513] [2023-11-29 01:13:36,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [991889513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:13:36,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:13:36,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 17] total 47 [2023-11-29 01:13:36,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591232953] [2023-11-29 01:13:36,656 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:13:36,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-29 01:13:36,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:13:36,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-29 01:13:36,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=430, Invalid=1732, Unknown=0, NotChecked=0, Total=2162 [2023-11-29 01:13:36,659 INFO L87 Difference]: Start difference. First operand 4754 states and 6726 transitions. Second operand has 47 states, 45 states have (on average 3.6666666666666665) internal successors, (165), 47 states have internal predecessors, (165), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:14:15,430 WARN L293 SmtUtils]: Spent 37.10s on a formula simplification. DAG size of input: 83 DAG size of output: 77 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:14:44,347 WARN L293 SmtUtils]: Spent 27.14s on a formula simplification. DAG size of input: 76 DAG size of output: 72 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:14:59,524 WARN L293 SmtUtils]: Spent 13.10s on a formula simplification. DAG size of input: 69 DAG size of output: 67 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:15:08,338 WARN L293 SmtUtils]: Spent 5.10s on a formula simplification that was a NOOP. DAG size: 62 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:15:24,891 WARN L293 SmtUtils]: Spent 9.69s on a formula simplification that was a NOOP. DAG size: 57 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-29 01:15:37,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:37,282 INFO L93 Difference]: Finished difference Result 9442 states and 13493 transitions. [2023-11-29 01:15:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-11-29 01:15:37,283 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 45 states have (on average 3.6666666666666665) internal successors, (165), 47 states have internal predecessors, (165), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 162 [2023-11-29 01:15:37,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:37,289 INFO L225 Difference]: With dead ends: 9442 [2023-11-29 01:15:37,289 INFO L226 Difference]: Without dead ends: 4865 [2023-11-29 01:15:37,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2760 ImplicationChecksByTransitivity, 118.9s TimeCoverageRelationStatistics Valid=1994, Invalid=9136, Unknown=0, NotChecked=0, Total=11130 [2023-11-29 01:15:37,294 INFO L413 NwaCegarLoop]: 530 mSDtfsCounter, 174 mSDsluCounter, 11592 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 12122 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:37,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 12122 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-29 01:15:37,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2023-11-29 01:15:37,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 4768. [2023-11-29 01:15:37,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4768 states, 4564 states have (on average 1.4176161262050833) internal successors, (6470), 4578 states have internal predecessors, (6470), 137 states have call successors, (137), 71 states have call predecessors, (137), 57 states have return successors, (145), 118 states have call predecessors, (145), 137 states have call successors, (145) [2023-11-29 01:15:37,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4768 states to 4768 states and 6752 transitions. [2023-11-29 01:15:37,610 INFO L78 Accepts]: Start accepts. Automaton has 4768 states and 6752 transitions. Word has length 162 [2023-11-29 01:15:37,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:37,611 INFO L495 AbstractCegarLoop]: Abstraction has 4768 states and 6752 transitions. [2023-11-29 01:15:37,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 45 states have (on average 3.6666666666666665) internal successors, (165), 47 states have internal predecessors, (165), 2 states have call successors, (6), 1 states have call predecessors, (6), 6 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-29 01:15:37,611 INFO L276 IsEmpty]: Start isEmpty. Operand 4768 states and 6752 transitions. [2023-11-29 01:15:37,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-11-29 01:15:37,612 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:37,612 INFO L195 NwaCegarLoop]: trace histogram [48, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:37,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-11-29 01:15:37,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:37,812 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-29 01:15:37,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:37,813 INFO L85 PathProgramCache]: Analyzing trace with hash -287691172, now seen corresponding path program 1 times [2023-11-29 01:15:37,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:37,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128076133] [2023-11-29 01:15:37,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:37,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:37,879 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:15:37,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754153517] [2023-11-29 01:15:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:37,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:37,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:37,880 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:37,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcb9f084-7bfd-4295-b285-e82935804557/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-11-29 01:15:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:50,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-29 01:15:50,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 637 proven. 253 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-11-29 01:15:50,613 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:15:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1241 backedges. 6 proven. 877 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-11-29 01:15:52,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:52,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128076133] [2023-11-29 01:15:52,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:15:52,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754153517] [2023-11-29 01:15:52,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754153517] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:15:52,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:15:52,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 27] total 56 [2023-11-29 01:15:52,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558315675] [2023-11-29 01:15:52,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:15:52,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2023-11-29 01:15:52,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:52,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2023-11-29 01:15:52,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=687, Invalid=2393, Unknown=0, NotChecked=0, Total=3080 [2023-11-29 01:15:52,849 INFO L87 Difference]: Start difference. First operand 4768 states and 6752 transitions. Second operand has 56 states, 54 states have (on average 3.3518518518518516) internal successors, (181), 56 states have internal predecessors, (181), 3 states have call successors, (8), 2 states have call predecessors, (8), 6 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)