/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:06:49,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:06:49,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:06:49,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:06:49,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:06:49,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:06:49,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:06:49,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:06:49,125 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:06:49,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:06:49,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:06:49,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:06:49,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:06:49,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:06:49,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:06:49,148 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:06:49,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:06:49,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:06:49,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:06:49,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:06:49,166 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:06:49,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:06:49,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:06:49,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:06:49,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:06:49,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:06:49,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:06:49,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:06:49,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:06:49,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:06:49,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:06:49,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:06:49,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:06:49,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:06:49,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:06:49,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:06:49,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:06:49,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:06:49,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:06:49,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:06:49,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:06:49,194 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:06:49,229 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:06:49,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:06:49,230 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:06:49,231 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:06:49,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:06:49,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:06:49,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:06:49,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:06:49,233 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:06:49,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:06:49,234 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:06:49,234 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:06:49,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:06:49,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:06:49,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:06:49,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:06:49,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:06:49,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:06:49,236 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:06:49,236 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:06:49,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:06:49,236 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:06:49,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:06:49,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:06:49,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:06:49,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:06:49,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:06:49,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:06:49,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:06:49,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:06:49,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:06:49,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:06:49,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:06:49,240 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:06:49,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:06:49,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:06:49,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:06:49,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:06:49,725 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:06:49,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2022-10-15 21:06:49,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa654868/878541aeac624459adc5fe40e46a4520/FLAG5a7361e8f [2022-10-15 21:06:51,004 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:06:51,005 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2022-10-15 21:06:51,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa654868/878541aeac624459adc5fe40e46a4520/FLAG5a7361e8f [2022-10-15 21:06:51,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faa654868/878541aeac624459adc5fe40e46a4520 [2022-10-15 21:06:51,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:06:51,332 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:06:51,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:06:51,334 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:06:51,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:06:51,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:06:51" (1/1) ... [2022-10-15 21:06:51,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfeb19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:51, skipping insertion in model container [2022-10-15 21:06:51,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:06:51" (1/1) ... [2022-10-15 21:06:51,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:06:51,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:06:53,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i[220631,220644] [2022-10-15 21:06:53,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:06:53,887 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:06:54,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i[220631,220644] [2022-10-15 21:06:54,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:06:54,475 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:06:54,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54 WrapperNode [2022-10-15 21:06:54,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:06:54,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:06:54,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:06:54,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:06:54,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:54,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:54,830 INFO L138 Inliner]: procedures = 181, calls = 2117, calls flagged for inlining = 61, calls inlined = 40, statements flattened = 3037 [2022-10-15 21:06:54,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:06:54,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:06:54,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:06:54,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:06:54,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:54,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:54,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:54,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:55,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:55,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:55,148 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:55,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:55,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:06:55,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:06:55,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:06:55,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:06:55,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (1/1) ... [2022-10-15 21:06:55,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:06:55,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:06:55,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:06:55,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:06:55,445 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2022-10-15 21:06:55,446 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2022-10-15 21:06:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-15 21:06:55,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-15 21:06:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:06:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:06:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:06:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:06:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2022-10-15 21:06:55,447 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2022-10-15 21:06:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:06:55,447 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:06:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:06:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:06:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 21:06:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 21:06:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2022-10-15 21:06:55,449 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2022-10-15 21:06:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_ulaw_to_alaw [2022-10-15 21:06:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_ulaw_to_alaw [2022-10-15 21:06:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:06:55,450 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:06:55,450 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-15 21:06:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-15 21:06:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-10-15 21:06:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-10-15 21:06:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:06:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:06:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:06:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_send [2022-10-15 21:06:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_send [2022-10-15 21:06:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:06:55,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:06:55,452 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-15 21:06:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-15 21:06:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2022-10-15 21:06:55,453 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2022-10-15 21:06:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:06:55,453 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-15 21:06:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-15 21:06:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-15 21:06:55,454 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-15 21:06:55,454 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-10-15 21:06:55,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-10-15 21:06:55,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:06:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_open [2022-10-15 21:06:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_open [2022-10-15 21:06:55,456 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-15 21:06:55,456 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-15 21:06:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:06:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:06:55,457 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-15 21:06:55,458 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-15 21:06:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:06:55,458 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_free [2022-10-15 21:06:55,459 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_free [2022-10-15 21:06:55,459 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-15 21:06:55,460 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-15 21:06:55,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:06:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:06:55,461 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-10-15 21:06:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-10-15 21:06:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2022-10-15 21:06:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2022-10-15 21:06:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2022-10-15 21:06:55,463 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2022-10-15 21:06:55,463 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-15 21:06:55,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-15 21:06:55,464 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2022-10-15 21:06:55,465 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2022-10-15 21:06:55,465 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:06:55,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:06:55,467 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:06:55,467 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-15 21:06:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-15 21:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_alaw_to_ulaw [2022-10-15 21:06:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_alaw_to_ulaw [2022-10-15 21:06:55,468 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_close [2022-10-15 21:06:55,468 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_close [2022-10-15 21:06:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:06:55,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:06:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:06:55,469 INFO L130 BoogieDeclarations]: Found specification of procedure memchr_inv [2022-10-15 21:06:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure memchr_inv [2022-10-15 21:06:55,470 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-10-15 21:06:55,470 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-10-15 21:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_cleanup [2022-10-15 21:06:55,471 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_cleanup [2022-10-15 21:06:55,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:06:55,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:06:55,473 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:06:55,473 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:06:56,242 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:06:56,247 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:07:01,148 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:07:01,168 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:07:01,169 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:07:01,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:07:01 BoogieIcfgContainer [2022-10-15 21:07:01,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:07:01,177 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:07:01,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:07:01,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:07:01,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:06:51" (1/3) ... [2022-10-15 21:07:01,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7337615d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:07:01, skipping insertion in model container [2022-10-15 21:07:01,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:06:54" (2/3) ... [2022-10-15 21:07:01,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7337615d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:07:01, skipping insertion in model container [2022-10-15 21:07:01,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:07:01" (3/3) ... [2022-10-15 21:07:01,187 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2022-10-15 21:07:01,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:07:01,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 96 error locations. [2022-10-15 21:07:01,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:07:01,337 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1016171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:07:01,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-10-15 21:07:01,348 INFO L276 IsEmpty]: Start isEmpty. Operand has 736 states, 504 states have (on average 1.4761904761904763) internal successors, (744), 611 states have internal predecessors, (744), 96 states have call successors, (96), 39 states have call predecessors, (96), 39 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2022-10-15 21:07:01,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:07:01,369 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:01,370 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] [2022-10-15 21:07:01,371 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting l1oip_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:01,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:01,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1977446891, now seen corresponding path program 1 times [2022-10-15 21:07:01,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:01,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879510227] [2022-10-15 21:07:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:01,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:07:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:02,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:02,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:07:02,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:02,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879510227] [2022-10-15 21:07:02,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879510227] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:02,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:02,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:07:02,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605190841] [2022-10-15 21:07:02,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:02,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:07:02,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:02,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:07:02,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:07:02,838 INFO L87 Difference]: Start difference. First operand has 736 states, 504 states have (on average 1.4761904761904763) internal successors, (744), 611 states have internal predecessors, (744), 96 states have call successors, (96), 39 states have call predecessors, (96), 39 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:07:03,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:03,325 INFO L93 Difference]: Finished difference Result 1853 states and 2411 transitions. [2022-10-15 21:07:03,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:07:03,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2022-10-15 21:07:03,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:03,383 INFO L225 Difference]: With dead ends: 1853 [2022-10-15 21:07:03,384 INFO L226 Difference]: Without dead ends: 1094 [2022-10-15 21:07:03,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:07:03,408 INFO L413 NwaCegarLoop]: 1405 mSDtfsCounter, 898 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:03,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 1922 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:07:03,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-10-15 21:07:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 1066. [2022-10-15 21:07:03,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 763 states have (on average 1.4403669724770642) internal successors, (1099), 868 states have internal predecessors, (1099), 150 states have call successors, (150), 62 states have call predecessors, (150), 61 states have return successors, (149), 149 states have call predecessors, (149), 149 states have call successors, (149) [2022-10-15 21:07:03,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1398 transitions. [2022-10-15 21:07:03,661 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1398 transitions. Word has length 37 [2022-10-15 21:07:03,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:03,662 INFO L495 AbstractCegarLoop]: Abstraction has 1066 states and 1398 transitions. [2022-10-15 21:07:03,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:07:03,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1398 transitions. [2022-10-15 21:07:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:07:03,679 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:03,679 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] [2022-10-15 21:07:03,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:07:03,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:03,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:03,686 INFO L85 PathProgramCache]: Analyzing trace with hash -157611794, now seen corresponding path program 1 times [2022-10-15 21:07:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:03,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445816055] [2022-10-15 21:07:03,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:03,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:04,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:04,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:04,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:04,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:04,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:07:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:04,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:04,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:04,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:07:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:05,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:07:05,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:05,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445816055] [2022-10-15 21:07:05,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445816055] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:05,037 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:05,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-15 21:07:05,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216509180] [2022-10-15 21:07:05,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:05,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 21:07:05,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:05,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 21:07:05,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:07:05,042 INFO L87 Difference]: Start difference. First operand 1066 states and 1398 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 21:07:08,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:08,675 INFO L93 Difference]: Finished difference Result 3096 states and 4336 transitions. [2022-10-15 21:07:08,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-15 21:07:08,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2022-10-15 21:07:08,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:08,725 INFO L225 Difference]: With dead ends: 3096 [2022-10-15 21:07:08,725 INFO L226 Difference]: Without dead ends: 2033 [2022-10-15 21:07:08,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 21:07:08,742 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 2327 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 862 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 2387 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 862 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:08,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2381 Valid, 2387 Invalid, 1946 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [862 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-10-15 21:07:08,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2033 states. [2022-10-15 21:07:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2033 to 1044. [2022-10-15 21:07:08,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 747 states have (on average 1.4364123159303883) internal successors, (1073), 850 states have internal predecessors, (1073), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-15 21:07:08,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1368 transitions. [2022-10-15 21:07:08,933 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1368 transitions. Word has length 52 [2022-10-15 21:07:08,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:08,935 INFO L495 AbstractCegarLoop]: Abstraction has 1044 states and 1368 transitions. [2022-10-15 21:07:08,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 21:07:08,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1368 transitions. [2022-10-15 21:07:08,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-15 21:07:08,945 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:08,946 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] [2022-10-15 21:07:08,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:07:08,947 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash -157552212, now seen corresponding path program 1 times [2022-10-15 21:07:08,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:08,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200105920] [2022-10-15 21:07:08,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:08,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:07:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:07:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:07:09,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:09,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200105920] [2022-10-15 21:07:09,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200105920] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:09,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:09,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:07:09,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733631730] [2022-10-15 21:07:09,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:09,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:07:09,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:09,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:07:09,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:07:09,778 INFO L87 Difference]: Start difference. First operand 1044 states and 1368 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:12,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:12,767 INFO L93 Difference]: Finished difference Result 3110 states and 4321 transitions. [2022-10-15 21:07:12,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:07:12,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 52 [2022-10-15 21:07:12,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:12,788 INFO L225 Difference]: With dead ends: 3110 [2022-10-15 21:07:12,788 INFO L226 Difference]: Without dead ends: 2069 [2022-10-15 21:07:12,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:07:12,801 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 876 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 2592 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:12,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 2592 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-10-15 21:07:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2022-10-15 21:07:12,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 1080. [2022-10-15 21:07:12,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 783 states have (on average 1.4393358876117497) internal successors, (1127), 886 states have internal predecessors, (1127), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-15 21:07:12,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1422 transitions. [2022-10-15 21:07:12,938 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1422 transitions. Word has length 52 [2022-10-15 21:07:12,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:12,939 INFO L495 AbstractCegarLoop]: Abstraction has 1080 states and 1422 transitions. [2022-10-15 21:07:12,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:12,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1422 transitions. [2022-10-15 21:07:12,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-15 21:07:12,941 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:12,941 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] [2022-10-15 21:07:12,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:07:12,942 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:12,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:12,943 INFO L85 PathProgramCache]: Analyzing trace with hash -2141430288, now seen corresponding path program 1 times [2022-10-15 21:07:12,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:12,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586130973] [2022-10-15 21:07:12,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:12,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:07:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:07:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:13,680 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:07:13,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:13,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586130973] [2022-10-15 21:07:13,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586130973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:13,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:13,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:07:13,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337715995] [2022-10-15 21:07:13,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:13,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:07:13,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:13,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:07:13,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:07:13,685 INFO L87 Difference]: Start difference. First operand 1080 states and 1422 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:16,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:16,485 INFO L93 Difference]: Finished difference Result 2265 states and 3241 transitions. [2022-10-15 21:07:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:07:16,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2022-10-15 21:07:16,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:16,506 INFO L225 Difference]: With dead ends: 2265 [2022-10-15 21:07:16,506 INFO L226 Difference]: Without dead ends: 2264 [2022-10-15 21:07:16,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:07:16,511 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 1137 mSDsluCounter, 2083 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 3213 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:16,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1229 Valid, 3213 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [490 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-15 21:07:16,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2022-10-15 21:07:16,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 1079. [2022-10-15 21:07:16,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 783 states have (on average 1.4367816091954022) internal successors, (1125), 885 states have internal predecessors, (1125), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-15 21:07:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1420 transitions. [2022-10-15 21:07:16,647 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1420 transitions. Word has length 56 [2022-10-15 21:07:16,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:16,648 INFO L495 AbstractCegarLoop]: Abstraction has 1079 states and 1420 transitions. [2022-10-15 21:07:16,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:16,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1420 transitions. [2022-10-15 21:07:16,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 21:07:16,650 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:16,650 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] [2022-10-15 21:07:16,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:07:16,651 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:16,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:16,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1959828575, now seen corresponding path program 1 times [2022-10-15 21:07:16,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:16,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143757451] [2022-10-15 21:07:16,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:16,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:16,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:07:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:17,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:07:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:07:17,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:17,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143757451] [2022-10-15 21:07:17,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143757451] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:17,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:17,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:07:17,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498702674] [2022-10-15 21:07:17,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:17,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:07:17,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:17,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:07:17,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:07:17,276 INFO L87 Difference]: Start difference. First operand 1079 states and 1420 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:20,506 INFO L93 Difference]: Finished difference Result 2264 states and 3239 transitions. [2022-10-15 21:07:20,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:07:20,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 57 [2022-10-15 21:07:20,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:20,529 INFO L225 Difference]: With dead ends: 2264 [2022-10-15 21:07:20,530 INFO L226 Difference]: Without dead ends: 2263 [2022-10-15 21:07:20,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:07:20,534 INFO L413 NwaCegarLoop]: 1130 mSDtfsCounter, 1137 mSDsluCounter, 2094 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1228 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:20,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1228 Valid, 3224 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [482 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-10-15 21:07:20,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2022-10-15 21:07:20,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1078. [2022-10-15 21:07:20,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1078 states, 783 states have (on average 1.434227330779055) internal successors, (1123), 884 states have internal predecessors, (1123), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-15 21:07:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1078 states to 1078 states and 1418 transitions. [2022-10-15 21:07:20,710 INFO L78 Accepts]: Start accepts. Automaton has 1078 states and 1418 transitions. Word has length 57 [2022-10-15 21:07:20,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:20,711 INFO L495 AbstractCegarLoop]: Abstraction has 1078 states and 1418 transitions. [2022-10-15 21:07:20,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1078 states and 1418 transitions. [2022-10-15 21:07:20,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-15 21:07:20,714 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:20,714 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] [2022-10-15 21:07:20,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:07:20,715 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:20,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:20,716 INFO L85 PathProgramCache]: Analyzing trace with hash -625142766, now seen corresponding path program 1 times [2022-10-15 21:07:20,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:20,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274615904] [2022-10-15 21:07:20,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:20,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:07:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:07:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:07:21,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:21,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274615904] [2022-10-15 21:07:21,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274615904] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:21,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:21,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:07:21,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373074950] [2022-10-15 21:07:21,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:21,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:07:21,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:21,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:07:21,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:07:21,248 INFO L87 Difference]: Start difference. First operand 1078 states and 1418 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:24,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:24,143 INFO L93 Difference]: Finished difference Result 3188 states and 4445 transitions. [2022-10-15 21:07:24,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:07:24,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2022-10-15 21:07:24,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:24,163 INFO L225 Difference]: With dead ends: 3188 [2022-10-15 21:07:24,163 INFO L226 Difference]: Without dead ends: 2113 [2022-10-15 21:07:24,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:07:24,175 INFO L413 NwaCegarLoop]: 845 mSDtfsCounter, 870 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 1607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:24,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 2515 Invalid, 1607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-10-15 21:07:24,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2022-10-15 21:07:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 1130. [2022-10-15 21:07:24,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1130 states, 835 states have (on average 1.421556886227545) internal successors, (1187), 936 states have internal predecessors, (1187), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-15 21:07:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 1482 transitions. [2022-10-15 21:07:24,340 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 1482 transitions. Word has length 58 [2022-10-15 21:07:24,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:24,341 INFO L495 AbstractCegarLoop]: Abstraction has 1130 states and 1482 transitions. [2022-10-15 21:07:24,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:24,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 1482 transitions. [2022-10-15 21:07:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 21:07:24,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:24,345 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:07:24,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:07:24,346 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting l1oip_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:24,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:24,347 INFO L85 PathProgramCache]: Analyzing trace with hash 752791222, now seen corresponding path program 1 times [2022-10-15 21:07:24,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:24,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752201172] [2022-10-15 21:07:24,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:24,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:25,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:25,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:25,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:07:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-15 21:07:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:25,084 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:07:25,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:25,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752201172] [2022-10-15 21:07:25,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752201172] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:25,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:25,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:07:25,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168685098] [2022-10-15 21:07:25,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:25,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:07:25,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:25,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:07:25,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:07:25,088 INFO L87 Difference]: Start difference. First operand 1130 states and 1482 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:07:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:27,343 INFO L93 Difference]: Finished difference Result 2826 states and 3801 transitions. [2022-10-15 21:07:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:07:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 63 [2022-10-15 21:07:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:27,360 INFO L225 Difference]: With dead ends: 2826 [2022-10-15 21:07:27,360 INFO L226 Difference]: Without dead ends: 1699 [2022-10-15 21:07:27,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:07:27,368 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 949 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:27,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 2631 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-15 21:07:27,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2022-10-15 21:07:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1132. [2022-10-15 21:07:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 837 states have (on average 1.4205495818399043) internal successors, (1189), 938 states have internal predecessors, (1189), 148 states have call successors, (148), 60 states have call predecessors, (148), 59 states have return successors, (147), 147 states have call predecessors, (147), 147 states have call successors, (147) [2022-10-15 21:07:27,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1484 transitions. [2022-10-15 21:07:27,530 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1484 transitions. Word has length 63 [2022-10-15 21:07:27,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:27,530 INFO L495 AbstractCegarLoop]: Abstraction has 1132 states and 1484 transitions. [2022-10-15 21:07:27,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-15 21:07:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1484 transitions. [2022-10-15 21:07:27,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-10-15 21:07:27,533 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:27,533 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:07:27,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:07:27,534 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting l1oip_cleanupErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:27,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:27,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1367389337, now seen corresponding path program 1 times [2022-10-15 21:07:27,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:27,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256372639] [2022-10-15 21:07:27,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:27,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:28,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:28,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:28,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-10-15 21:07:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:28,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:07:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-15 21:07:28,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:28,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256372639] [2022-10-15 21:07:28,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256372639] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:28,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:28,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:07:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243158227] [2022-10-15 21:07:28,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:28,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:07:28,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:28,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:07:28,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:07:28,165 INFO L87 Difference]: Start difference. First operand 1132 states and 1484 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:07:30,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:30,092 INFO L93 Difference]: Finished difference Result 2643 states and 3554 transitions. [2022-10-15 21:07:30,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:07:30,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2022-10-15 21:07:30,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:30,104 INFO L225 Difference]: With dead ends: 2643 [2022-10-15 21:07:30,104 INFO L226 Difference]: Without dead ends: 1514 [2022-10-15 21:07:30,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:07:30,111 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 292 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1995 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:30,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1995 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-15 21:07:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2022-10-15 21:07:30,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1158. [2022-10-15 21:07:30,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 859 states have (on average 1.4144353899883586) internal successors, (1215), 960 states have internal predecessors, (1215), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-15 21:07:30,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1518 transitions. [2022-10-15 21:07:30,293 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1518 transitions. Word has length 64 [2022-10-15 21:07:30,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:30,295 INFO L495 AbstractCegarLoop]: Abstraction has 1158 states and 1518 transitions. [2022-10-15 21:07:30,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-10-15 21:07:30,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1518 transitions. [2022-10-15 21:07:30,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 21:07:30,299 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:30,299 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:07:30,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:07:30,300 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:30,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:30,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1724547571, now seen corresponding path program 1 times [2022-10-15 21:07:30,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:30,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070789788] [2022-10-15 21:07:30,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:30,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:07:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:07:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:30,927 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-15 21:07:30,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:30,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070789788] [2022-10-15 21:07:30,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070789788] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:07:30,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:07:30,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:07:30,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64113325] [2022-10-15 21:07:30,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:07:30,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:07:30,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:07:30,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:07:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:07:30,932 INFO L87 Difference]: Start difference. First operand 1158 states and 1518 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:33,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:07:33,275 INFO L93 Difference]: Finished difference Result 2201 states and 3132 transitions. [2022-10-15 21:07:33,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:07:33,275 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 71 [2022-10-15 21:07:33,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:07:33,291 INFO L225 Difference]: With dead ends: 2201 [2022-10-15 21:07:33,292 INFO L226 Difference]: Without dead ends: 2195 [2022-10-15 21:07:33,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:07:33,295 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 863 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 1092 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 2540 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:07:33,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [927 Valid, 2540 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1092 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-15 21:07:33,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-10-15 21:07:33,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 1152. [2022-10-15 21:07:33,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 859 states have (on average 1.40046565774156) internal successors, (1203), 954 states have internal predecessors, (1203), 152 states have call successors, (152), 60 states have call predecessors, (152), 59 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2022-10-15 21:07:33,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1506 transitions. [2022-10-15 21:07:33,482 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1506 transitions. Word has length 71 [2022-10-15 21:07:33,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:07:33,483 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1506 transitions. [2022-10-15 21:07:33,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-15 21:07:33,483 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1506 transitions. [2022-10-15 21:07:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-15 21:07:33,489 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:07:33,490 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] [2022-10-15 21:07:33,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:07:33,490 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [l1oip_ulaw_to_alawErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, l1oip_ulaw_to_alawErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, _queue_dataErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 93 more)] === [2022-10-15 21:07:33,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:07:33,491 INFO L85 PathProgramCache]: Analyzing trace with hash -719313930, now seen corresponding path program 1 times [2022-10-15 21:07:33,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:07:33,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92431582] [2022-10-15 21:07:33,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:33,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:07:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:07:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-10-15 21:07:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:07:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:07:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-15 21:07:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:07:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:07:34,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-15 21:07:34,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:07:34,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92431582] [2022-10-15 21:07:34,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92431582] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:07:34,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211641034] [2022-10-15 21:07:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:07:34,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:07:34,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:07:34,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 21:07:34,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process