/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/seq-pthread/cs_stateful-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 16:56:00,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 16:56:00,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 16:56:00,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 16:56:00,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 16:56:00,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 16:56:00,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 16:56:00,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 16:56:00,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 16:56:00,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 16:56:00,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 16:56:00,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 16:56:00,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 16:56:00,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 16:56:00,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 16:56:00,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 16:56:00,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 16:56:00,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 16:56:00,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 16:56:00,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 16:56:00,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 16:56:00,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 16:56:00,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 16:56:00,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 16:56:00,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 16:56:00,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 16:56:00,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 16:56:00,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 16:56:00,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 16:56:00,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 16:56:00,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 16:56:00,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 16:56:00,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 16:56:00,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 16:56:00,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 16:56:00,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 16:56:00,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 16:56:00,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 16:56:00,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 16:56:00,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 16:56:00,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 16:56:00,777 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 [2022-10-16 16:56:00,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 16:56:00,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 16:56:00,811 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 16:56:00,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 16:56:00,813 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 16:56:00,813 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 16:56:00,814 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 16:56:00,814 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 16:56:00,815 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 16:56:00,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 16:56:00,815 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 16:56:00,815 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 16:56:00,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 16:56:00,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 16:56:00,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 16:56:00,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 16:56:00,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 16:56:00,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 16:56:00,817 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 16:56:00,818 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 16:56:00,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 16:56:00,818 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 16:56:00,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 16:56:00,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 16:56:00,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 16:56:00,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 16:56:00,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:56:00,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 16:56:00,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 16:56:00,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 16:56:00,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 16:56:00,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 16:56:00,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 16:56:00,821 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 16:56:01,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 16:56:01,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 16:56:01,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 16:56:01,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 16:56:01,276 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 16:56:01,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2022-10-16 16:56:01,359 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf480ee4c/1aaec818464c4ab7b7b12a7bca6ad0c0/FLAGfcbb402bc [2022-10-16 16:56:02,202 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 16:56:02,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_stateful-1.i [2022-10-16 16:56:02,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf480ee4c/1aaec818464c4ab7b7b12a7bca6ad0c0/FLAGfcbb402bc [2022-10-16 16:56:02,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf480ee4c/1aaec818464c4ab7b7b12a7bca6ad0c0 [2022-10-16 16:56:02,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 16:56:02,384 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 16:56:02,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 16:56:02,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 16:56:02,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 16:56:02,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:56:02" (1/1) ... [2022-10-16 16:56:02,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46e0318d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:02, skipping insertion in model container [2022-10-16 16:56:02,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:56:02" (1/1) ... [2022-10-16 16:56:02,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 16:56:02,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 16:56:02,783 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/seq-pthread/cs_stateful-1.i[23400,23413] [2022-10-16 16:56:02,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:56:02,963 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 16:56:03,011 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/seq-pthread/cs_stateful-1.i[23400,23413] [2022-10-16 16:56:03,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:56:03,171 INFO L208 MainTranslator]: Completed translation [2022-10-16 16:56:03,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03 WrapperNode [2022-10-16 16:56:03,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 16:56:03,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 16:56:03,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 16:56:03,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 16:56:03,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,264 INFO L138 Inliner]: procedures = 144, calls = 231, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 575 [2022-10-16 16:56:03,264 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 16:56:03,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 16:56:03,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 16:56:03,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 16:56:03,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,352 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 16:56:03,388 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 16:56:03,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 16:56:03,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 16:56:03,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (1/1) ... [2022-10-16 16:56:03,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:56:03,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:03,440 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) [2022-10-16 16:56:03,459 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 [2022-10-16 16:56:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 16:56:03,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 16:56:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 16:56:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 16:56:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 16:56:03,518 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_init [2022-10-16 16:56:03,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_init [2022-10-16 16:56:03,521 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-10-16 16:56:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-10-16 16:56:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-10-16 16:56:03,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-10-16 16:56:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 16:56:03,522 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-10-16 16:56:03,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-10-16 16:56:03,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:56:03,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:56:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 16:56:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 16:56:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-10-16 16:56:03,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-10-16 16:56:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 16:56:03,524 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-10-16 16:56:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-10-16 16:56:03,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 16:56:03,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 16:56:03,751 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 16:56:03,757 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 16:56:04,352 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L746: SUMMARY for call __CS_cs(); srcloc: null [2022-10-16 16:56:04,353 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-10-16 16:56:04,353 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L746-1: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:04,354 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:04,354 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-10-16 16:56:04,354 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:04,354 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume 0 != ~__CS_ret~0 % 256;main_thread_#res#1.base, main_thread_#res#1.offset := 0, 0;call ULTIMATE.dealloc(main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset);havoc main_thread_~#t1~0#1.base, main_thread_~#t1~0#1.offset;call ULTIMATE.dealloc(main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset);havoc main_thread_~#t2~0#1.base, main_thread_~#t2~0#1.offset; [2022-10-16 16:56:06,864 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 16:56:06,880 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 16:56:06,880 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 16:56:06,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:56:06 BoogieIcfgContainer [2022-10-16 16:56:06,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 16:56:06,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 16:56:06,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 16:56:06,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 16:56:06,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:56:02" (1/3) ... [2022-10-16 16:56:06,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c41e33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:56:06, skipping insertion in model container [2022-10-16 16:56:06,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:03" (2/3) ... [2022-10-16 16:56:06,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c41e33e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:56:06, skipping insertion in model container [2022-10-16 16:56:06,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:56:06" (3/3) ... [2022-10-16 16:56:06,896 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_stateful-1.i [2022-10-16 16:56:06,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 16:56:06,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-16 16:56:07,033 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 16:56:07,041 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;@442dd074, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 16:56:07,042 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-16 16:56:07,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 208 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 158 states have internal predecessors, (218), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2022-10-16 16:56:07,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 16:56:07,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:07,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 16:56:07,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:07,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:07,065 INFO L85 PathProgramCache]: Analyzing trace with hash 314036116, now seen corresponding path program 1 times [2022-10-16 16:56:07,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:07,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658241677] [2022-10-16 16:56:07,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:07,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:07,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:07,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658241677] [2022-10-16 16:56:07,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658241677] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:07,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:07,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 16:56:07,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397895011] [2022-10-16 16:56:07,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:07,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 16:56:07,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:07,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 16:56:07,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 16:56:07,631 INFO L87 Difference]: Start difference. First operand has 208 states, 138 states have (on average 1.5797101449275361) internal successors, (218), 158 states have internal predecessors, (218), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:07,740 INFO L93 Difference]: Finished difference Result 409 states and 639 transitions. [2022-10-16 16:56:07,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 16:56:07,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 16:56:07,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:07,761 INFO L225 Difference]: With dead ends: 409 [2022-10-16 16:56:07,762 INFO L226 Difference]: Without dead ends: 174 [2022-10-16 16:56:07,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 16:56:07,776 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:07,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 547 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:07,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-10-16 16:56:07,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2022-10-16 16:56:07,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 113 states have (on average 1.4867256637168142) internal successors, (168), 125 states have internal predecessors, (168), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 16:56:07,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 251 transitions. [2022-10-16 16:56:07,853 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 251 transitions. Word has length 5 [2022-10-16 16:56:07,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:07,854 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 251 transitions. [2022-10-16 16:56:07,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:07,855 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 251 transitions. [2022-10-16 16:56:07,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 16:56:07,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:07,856 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:07,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 16:56:07,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:07,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:07,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1011510447, now seen corresponding path program 1 times [2022-10-16 16:56:07,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:07,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253311209] [2022-10-16 16:56:07,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:07,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 16:56:08,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:08,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253311209] [2022-10-16 16:56:08,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253311209] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:08,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:08,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 16:56:08,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830714181] [2022-10-16 16:56:08,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:08,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 16:56:08,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:08,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 16:56:08,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 16:56:08,041 INFO L87 Difference]: Start difference. First operand 174 states and 251 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:08,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:08,107 INFO L93 Difference]: Finished difference Result 174 states and 251 transitions. [2022-10-16 16:56:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 16:56:08,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 16:56:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:08,113 INFO L225 Difference]: With dead ends: 174 [2022-10-16 16:56:08,113 INFO L226 Difference]: Without dead ends: 173 [2022-10-16 16:56:08,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 16:56:08,116 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 2 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:08,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 483 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:08,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2022-10-16 16:56:08,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2022-10-16 16:56:08,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 113 states have (on average 1.4778761061946903) internal successors, (167), 124 states have internal predecessors, (167), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 16:56:08,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 250 transitions. [2022-10-16 16:56:08,140 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 250 transitions. Word has length 8 [2022-10-16 16:56:08,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:08,140 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 250 transitions. [2022-10-16 16:56:08,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 250 transitions. [2022-10-16 16:56:08,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 16:56:08,142 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:08,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:08,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 16:56:08,142 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:08,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:08,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1292051408, now seen corresponding path program 1 times [2022-10-16 16:56:08,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:08,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373954330] [2022-10-16 16:56:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:08,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:08,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:08,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:08,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373954330] [2022-10-16 16:56:08,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373954330] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:08,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483600267] [2022-10-16 16:56:08,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:08,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:08,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:08,420 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) [2022-10-16 16:56:08,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 16:56:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:08,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 16:56:08,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:08,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 16:56:08,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:08,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483600267] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:08,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:08,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 16:56:08,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012013666] [2022-10-16 16:56:08,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:08,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 16:56:08,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:08,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 16:56:08,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:08,720 INFO L87 Difference]: Start difference. First operand 173 states and 250 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:08,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:08,818 INFO L93 Difference]: Finished difference Result 343 states and 498 transitions. [2022-10-16 16:56:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 16:56:08,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 16:56:08,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:08,822 INFO L225 Difference]: With dead ends: 343 [2022-10-16 16:56:08,822 INFO L226 Difference]: Without dead ends: 184 [2022-10-16 16:56:08,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:08,826 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 3 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:08,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 479 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:08,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-10-16 16:56:08,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 182. [2022-10-16 16:56:08,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 122 states have (on average 1.459016393442623) internal successors, (178), 133 states have internal predecessors, (178), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 16:56:08,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 261 transitions. [2022-10-16 16:56:08,849 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 261 transitions. Word has length 9 [2022-10-16 16:56:08,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:08,849 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 261 transitions. [2022-10-16 16:56:08,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:08,850 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 261 transitions. [2022-10-16 16:56:08,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 16:56:08,850 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:08,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:56:08,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 16:56:09,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:09,065 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:09,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:09,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1292053137, now seen corresponding path program 1 times [2022-10-16 16:56:09,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:09,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977595397] [2022-10-16 16:56:09,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:09,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:09,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:09,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977595397] [2022-10-16 16:56:09,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977595397] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:09,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211167184] [2022-10-16 16:56:09,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:09,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:09,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:09,186 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:09,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 16:56:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:09,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 16:56:09,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:09,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:09,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:09,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211167184] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:09,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:09,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-16 16:56:09,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510277146] [2022-10-16 16:56:09,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:09,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:09,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:09,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:09,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:09,407 INFO L87 Difference]: Start difference. First operand 182 states and 261 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:09,452 INFO L93 Difference]: Finished difference Result 182 states and 261 transitions. [2022-10-16 16:56:09,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:09,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 16:56:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:09,456 INFO L225 Difference]: With dead ends: 182 [2022-10-16 16:56:09,456 INFO L226 Difference]: Without dead ends: 181 [2022-10-16 16:56:09,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:09,458 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 42 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:09,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 461 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:09,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-16 16:56:09,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2022-10-16 16:56:09,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 118 states have (on average 1.4576271186440677) internal successors, (172), 128 states have internal predecessors, (172), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 16:56:09,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 255 transitions. [2022-10-16 16:56:09,478 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 255 transitions. Word has length 9 [2022-10-16 16:56:09,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:09,478 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 255 transitions. [2022-10-16 16:56:09,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:09,479 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 255 transitions. [2022-10-16 16:56:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 16:56:09,479 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:09,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:09,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:09,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-16 16:56:09,694 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:09,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:09,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1398888345, now seen corresponding path program 1 times [2022-10-16 16:56:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:09,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423709867] [2022-10-16 16:56:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:09,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:09,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:09,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423709867] [2022-10-16 16:56:09,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423709867] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:09,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525186909] [2022-10-16 16:56:09,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:09,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:09,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:09,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:09,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 16:56:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:10,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 16:56:10,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:10,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 16:56:10,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:10,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525186909] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:10,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:10,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 16:56:10,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520873215] [2022-10-16 16:56:10,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:10,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 16:56:10,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 16:56:10,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:10,129 INFO L87 Difference]: Start difference. First operand 177 states and 255 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:10,166 INFO L93 Difference]: Finished difference Result 177 states and 255 transitions. [2022-10-16 16:56:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 16:56:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 16:56:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:10,169 INFO L225 Difference]: With dead ends: 177 [2022-10-16 16:56:10,170 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 16:56:10,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:10,172 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 16 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:10,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 456 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:10,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 16:56:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-10-16 16:56:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 118 states have (on average 1.4491525423728813) internal successors, (171), 127 states have internal predecessors, (171), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 16:56:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 254 transitions. [2022-10-16 16:56:10,201 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 254 transitions. Word has length 10 [2022-10-16 16:56:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:10,201 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 254 transitions. [2022-10-16 16:56:10,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 254 transitions. [2022-10-16 16:56:10,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 16:56:10,204 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:10,204 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:56:10,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:10,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:10,406 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:10,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:10,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1514017145, now seen corresponding path program 1 times [2022-10-16 16:56:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:10,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049465982] [2022-10-16 16:56:10,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 16:56:10,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:10,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049465982] [2022-10-16 16:56:10,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049465982] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:10,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614417475] [2022-10-16 16:56:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:10,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:10,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:10,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:10,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 16:56:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:10,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 16:56:10,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:10,776 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 16:56:10,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:10,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614417475] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:10,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:10,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-10-16 16:56:10,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306674540] [2022-10-16 16:56:10,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:10,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 16:56:10,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:10,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 16:56:10,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:10,779 INFO L87 Difference]: Start difference. First operand 176 states and 254 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:10,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:10,816 INFO L93 Difference]: Finished difference Result 176 states and 254 transitions. [2022-10-16 16:56:10,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 16:56:10,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 16:56:10,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:10,819 INFO L225 Difference]: With dead ends: 176 [2022-10-16 16:56:10,819 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 16:56:10,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:10,821 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 1 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:10,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 473 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 16:56:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2022-10-16 16:56:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 120 states have internal predecessors, (163), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 16:56:10,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 246 transitions. [2022-10-16 16:56:10,840 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 246 transitions. Word has length 17 [2022-10-16 16:56:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:10,841 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 246 transitions. [2022-10-16 16:56:10,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 246 transitions. [2022-10-16 16:56:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-16 16:56:10,852 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:10,853 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:10,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:11,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:11,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:11,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:11,067 INFO L85 PathProgramCache]: Analyzing trace with hash 47470105, now seen corresponding path program 1 times [2022-10-16 16:56:11,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:11,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908647910] [2022-10-16 16:56:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:11,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:11,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-10-16 16:56:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-16 16:56:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:11,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 16:56:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 16:56:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:11,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908647910] [2022-10-16 16:56:11,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908647910] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:11,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2348527] [2022-10-16 16:56:11,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:11,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:11,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:11,705 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:11,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 16:56:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:12,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 1769 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 16:56:12,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 16:56:12,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 16:56:12,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2348527] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:12,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:12,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 8 [2022-10-16 16:56:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934071514] [2022-10-16 16:56:12,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:12,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 16:56:12,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:12,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 16:56:12,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:56:12,363 INFO L87 Difference]: Start difference. First operand 169 states and 246 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 16:56:14,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:56:15,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:15,598 INFO L93 Difference]: Finished difference Result 347 states and 510 transitions. [2022-10-16 16:56:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 16:56:15,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 50 [2022-10-16 16:56:15,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:15,602 INFO L225 Difference]: With dead ends: 347 [2022-10-16 16:56:15,602 INFO L226 Difference]: Without dead ends: 181 [2022-10-16 16:56:15,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:56:15,605 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 68 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 91 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:15,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 798 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 337 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2022-10-16 16:56:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2022-10-16 16:56:15,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 175. [2022-10-16 16:56:15,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 118 states have (on average 1.4322033898305084) internal successors, (169), 126 states have internal predecessors, (169), 42 states have call successors, (42), 7 states have call predecessors, (42), 7 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2022-10-16 16:56:15,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 252 transitions. [2022-10-16 16:56:15,624 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 252 transitions. Word has length 50 [2022-10-16 16:56:15,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:15,624 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 252 transitions. [2022-10-16 16:56:15,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 16:56:15,624 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 252 transitions. [2022-10-16 16:56:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 16:56:15,626 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:15,627 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 16:56:15,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:15,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:15,840 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:15,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:15,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1954587641, now seen corresponding path program 2 times [2022-10-16 16:56:15,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:15,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175064867] [2022-10-16 16:56:15,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:15,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:16,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 16:56:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 16:56:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 16:56:16,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 16:56:16,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:16,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175064867] [2022-10-16 16:56:16,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175064867] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:16,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309732325] [2022-10-16 16:56:16,382 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 16:56:16,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:16,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:16,384 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:16,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 16:56:17,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 16:56:17,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 16:56:17,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 16:56:17,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:17,456 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 16:56:17,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:17,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309732325] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:17,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:17,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2022-10-16 16:56:17,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868148683] [2022-10-16 16:56:17,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:17,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:56:17,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:17,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:56:17,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:56:17,461 INFO L87 Difference]: Start difference. First operand 175 states and 252 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 16:56:17,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:17,949 INFO L93 Difference]: Finished difference Result 396 states and 612 transitions. [2022-10-16 16:56:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 16:56:17,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2022-10-16 16:56:17,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:17,953 INFO L225 Difference]: With dead ends: 396 [2022-10-16 16:56:17,953 INFO L226 Difference]: Without dead ends: 241 [2022-10-16 16:56:17,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-10-16 16:56:17,956 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 357 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:17,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 552 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 16:56:17,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-10-16 16:56:17,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 236. [2022-10-16 16:56:17,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 169 states have (on average 1.3076923076923077) internal successors, (221), 153 states have internal predecessors, (221), 48 states have call successors, (48), 8 states have call predecessors, (48), 11 states have return successors, (80), 74 states have call predecessors, (80), 47 states have call successors, (80) [2022-10-16 16:56:17,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 349 transitions. [2022-10-16 16:56:17,983 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 349 transitions. Word has length 56 [2022-10-16 16:56:17,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:17,983 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 349 transitions. [2022-10-16 16:56:17,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 16:56:17,984 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 349 transitions. [2022-10-16 16:56:17,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-10-16 16:56:17,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:17,986 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-10-16 16:56:18,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:18,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:18,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:18,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:18,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1200940130, now seen corresponding path program 1 times [2022-10-16 16:56:18,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:18,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643129134] [2022-10-16 16:56:18,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:18,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:18,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-16 16:56:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:18,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 16:56:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:18,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-10-16 16:56:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:18,898 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 16:56:18,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:18,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643129134] [2022-10-16 16:56:18,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643129134] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:18,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468418551] [2022-10-16 16:56:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:18,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:18,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:18,900 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:56:18,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 16:56:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:19,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 1839 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 16:56:19,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 16:56:19,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:19,755 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-16 16:56:19,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468418551] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:19,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:19,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 7 [2022-10-16 16:56:19,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171349963] [2022-10-16 16:56:19,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:19,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 16:56:19,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:19,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 16:56:19,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 16:56:19,758 INFO L87 Difference]: Start difference. First operand 236 states and 349 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 16:56:21,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:56:23,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:56:24,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:24,410 INFO L93 Difference]: Finished difference Result 473 states and 703 transitions. [2022-10-16 16:56:24,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 16:56:24,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 59 [2022-10-16 16:56:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:24,413 INFO L225 Difference]: With dead ends: 473 [2022-10-16 16:56:24,414 INFO L226 Difference]: Without dead ends: 254 [2022-10-16 16:56:24,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:56:24,417 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 76 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 91 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 788 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:24,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 788 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 335 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2022-10-16 16:56:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-10-16 16:56:24,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2022-10-16 16:56:24,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 183 states have (on average 1.289617486338798) internal successors, (236), 167 states have internal predecessors, (236), 48 states have call successors, (48), 8 states have call predecessors, (48), 11 states have return successors, (80), 74 states have call predecessors, (80), 47 states have call successors, (80) [2022-10-16 16:56:24,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 364 transitions. [2022-10-16 16:56:24,441 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 364 transitions. Word has length 59 [2022-10-16 16:56:24,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:24,441 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 364 transitions. [2022-10-16 16:56:24,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 16:56:24,442 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 364 transitions. [2022-10-16 16:56:24,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-10-16 16:56:24,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:24,444 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-16 16:56:24,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:24,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:24,658 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:24,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:24,659 INFO L85 PathProgramCache]: Analyzing trace with hash -309807204, now seen corresponding path program 1 times [2022-10-16 16:56:24,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:24,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883303070] [2022-10-16 16:56:24,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:24,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-16 16:56:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-16 16:56:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:34,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-16 16:56:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-10-16 16:56:34,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:34,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883303070] [2022-10-16 16:56:34,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883303070] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:34,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:34,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 16:56:34,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126115230] [2022-10-16 16:56:34,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:34,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:56:34,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:34,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:56:34,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 16:56:34,192 INFO L87 Difference]: Start difference. First operand 250 states and 364 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 16:56:36,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:56:38,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:56:39,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:39,270 INFO L93 Difference]: Finished difference Result 704 states and 1051 transitions. [2022-10-16 16:56:39,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 16:56:39,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 71 [2022-10-16 16:56:39,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:39,279 INFO L225 Difference]: With dead ends: 704 [2022-10-16 16:56:39,280 INFO L226 Difference]: Without dead ends: 488 [2022-10-16 16:56:39,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:56:39,284 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 369 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 211 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:39,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 902 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2022-10-16 16:56:39,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2022-10-16 16:56:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 258. [2022-10-16 16:56:39,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 189 states have (on average 1.2804232804232805) internal successors, (242), 174 states have internal predecessors, (242), 48 states have call successors, (48), 9 states have call predecessors, (48), 13 states have return successors, (82), 74 states have call predecessors, (82), 47 states have call successors, (82) [2022-10-16 16:56:39,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 372 transitions. [2022-10-16 16:56:39,336 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 372 transitions. Word has length 71 [2022-10-16 16:56:39,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:39,336 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 372 transitions. [2022-10-16 16:56:39,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 16:56:39,337 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 372 transitions. [2022-10-16 16:56:39,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-16 16:56:39,340 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:39,340 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-16 16:56:39,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 16:56:39,341 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:39,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1531885906, now seen corresponding path program 1 times [2022-10-16 16:56:39,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:39,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093858672] [2022-10-16 16:56:39,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:39,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-10-16 16:56:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-16 16:56:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:48,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 16:56:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-10-16 16:56:48,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:48,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093858672] [2022-10-16 16:56:48,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093858672] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:48,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:48,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 16:56:48,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336782972] [2022-10-16 16:56:48,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:48,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 16:56:48,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:48,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 16:56:48,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:48,674 INFO L87 Difference]: Start difference. First operand 258 states and 372 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 16:56:50,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:56:51,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:51,593 INFO L93 Difference]: Finished difference Result 480 states and 705 transitions. [2022-10-16 16:56:51,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 16:56:51,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 75 [2022-10-16 16:56:51,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:51,597 INFO L225 Difference]: With dead ends: 480 [2022-10-16 16:56:51,597 INFO L226 Difference]: Without dead ends: 262 [2022-10-16 16:56:51,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 16:56:51,599 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 62 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 89 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:51,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 607 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 264 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 16:56:51,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-10-16 16:56:51,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2022-10-16 16:56:51,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 189 states have (on average 1.2751322751322751) internal successors, (241), 174 states have internal predecessors, (241), 48 states have call successors, (48), 9 states have call predecessors, (48), 13 states have return successors, (82), 74 states have call predecessors, (82), 47 states have call successors, (82) [2022-10-16 16:56:51,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 371 transitions. [2022-10-16 16:56:51,629 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 371 transitions. Word has length 75 [2022-10-16 16:56:51,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:51,629 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 371 transitions. [2022-10-16 16:56:51,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-16 16:56:51,630 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 371 transitions. [2022-10-16 16:56:51,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 16:56:51,631 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:51,632 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-10-16 16:56:51,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 16:56:51,632 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~$Pointer$Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_mutex_lockErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_mutex_lockErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-10-16 16:56:51,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:51,633 INFO L85 PathProgramCache]: Analyzing trace with hash -396610510, now seen corresponding path program 1 times [2022-10-16 16:56:51,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:51,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352503764] [2022-10-16 16:56:51,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:51,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-16 16:58:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:34,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 16:58:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-16 16:58:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:34,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 16:58:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-10-16 16:58:34,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:34,652 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-10-16 16:58:34,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:58:34,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352503764] [2022-10-16 16:58:34,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352503764] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:58:34,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1357958843] [2022-10-16 16:58:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:58:34,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:58:34,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:58:34,662 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 16:58:34,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 16:58:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:35,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 2166 conjuncts, 103 conjunts are in the unsatisfiable core [2022-10-16 16:58:35,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:58:35,971 INFO L356 Elim1Store]: treesize reduction 144, result has 14.8 percent of original size [2022-10-16 16:58:35,972 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 106 [2022-10-16 16:58:36,449 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 16:58:36,815 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 16:58:37,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 16:58:38,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 18 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2022-10-16 16:58:39,143 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 16:58:40,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 16:58:40,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 31 [2022-10-16 16:58:40,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-16 16:58:41,572 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 33 [2022-10-16 16:58:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:41,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 16:58:42,177 INFO L356 Elim1Store]: treesize reduction 258, result has 26.1 percent of original size [2022-10-16 16:58:42,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 45 treesize of output 111 [2022-10-16 16:58:42,188 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2022-10-16 16:58:42,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2022-10-16 16:58:42,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-10-16 16:58:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 16:58:42,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:58:43,071 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10407 (Array Int Int)) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store |c_#memory_int| |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:43,126 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10407 (Array Int Int)) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:43,234 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10407 (Array Int Int)) (|ULTIMATE.start_main_~j~2#1| Int) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| Int) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet49#1| Int) (v_ArrVal_10384 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |ULTIMATE.start_main_~j~2#1| |ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| (* 3 |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~nondet49#1|)) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10384) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:43,431 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10407 (Array Int Int)) (|ULTIMATE.start_main_~j~2#1| Int) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (v_ArrVal_10379 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| Int) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10380 (Array Int Int)) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet49#1| Int) (v_ArrVal_10384 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store (store (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10380) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10379))) (store .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |ULTIMATE.start_main_~j~2#1| |ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| (* 3 |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~nondet49#1|))) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10384) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:43,740 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_10407 (Array Int Int)) (|ULTIMATE.start_main_~j~2#1| Int) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (v_ArrVal_10379 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| Int) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10380 (Array Int Int)) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10378 (Array Int Int)) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10377 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet49#1| Int) (v_ArrVal_10384 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store (store (let ((.cse0 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10378) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10377) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10380) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10379))) (store .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |ULTIMATE.start_main_~j~2#1| |ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| (* 3 |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~nondet49#1|))) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10384) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:44,082 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~j~2#1| Int) (v_ArrVal_10379 (Array Int Int)) (v_ArrVal_10380 (Array Int Int)) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet49#1| Int) (v_ArrVal_10384 (Array Int Int)) (v_ArrVal_10407 (Array Int Int)) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| Int) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10378 (Array Int Int)) (v_ArrVal_10377 (Array Int Int)) (v_ArrVal_10376 (Array Int Int)) (v_ArrVal_10375 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (v_ArrVal_10374 (Array Int Int)) (v_ArrVal_10373 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10373) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10376) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10374) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10375) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10378) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10377) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10380) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10379))) (store .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |ULTIMATE.start_main_~j~2#1| |ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| (* 3 |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~nondet49#1|))) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10384) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:44,387 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~j~2#1| Int) (v_ArrVal_10379 (Array Int Int)) (v_ArrVal_10380 (Array Int Int)) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet49#1| Int) (v_ArrVal_10384 (Array Int Int)) (v_ArrVal_10407 (Array Int Int)) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| Int) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10378 (Array Int Int)) (v_ArrVal_10377 (Array Int Int)) (v_ArrVal_10376 (Array Int Int)) (v_ArrVal_10375 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (v_ArrVal_10374 (Array Int Int)) (v_ArrVal_10373 (Array Int Int)) (v_ArrVal_10372 (Array Int Int)) (v_ArrVal_10371 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10371) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10372) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10373) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10376) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10374) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10375) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10378) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10377) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10380) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10379))) (store .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |ULTIMATE.start_main_~j~2#1| |ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| (* 3 |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~nondet49#1|))) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10384) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:44,658 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~j~2#1| Int) (v_ArrVal_10379 (Array Int Int)) (v_ArrVal_10380 (Array Int Int)) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet49#1| Int) (v_ArrVal_10384 (Array Int Int)) (v_ArrVal_10407 (Array Int Int)) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10369 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| Int) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10370 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10378 (Array Int Int)) (v_ArrVal_10377 (Array Int Int)) (v_ArrVal_10376 (Array Int Int)) (v_ArrVal_10375 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (v_ArrVal_10374 (Array Int Int)) (v_ArrVal_10373 (Array Int Int)) (v_ArrVal_10372 (Array Int Int)) (v_ArrVal_10371 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10369) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10370) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10371) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10372) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10373) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10376) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10374) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10375) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10378) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10377) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10380) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10379))) (store .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |ULTIMATE.start_main_~j~2#1| |ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| (* 3 |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~nondet49#1|))) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10384) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:44,986 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~j~2#1| Int) (v_ArrVal_10379 (Array Int Int)) (v_ArrVal_10380 (Array Int Int)) (|ULTIMATE.start_main_~i~0#1| Int) (v_ArrVal_10367 (Array Int Int)) (v_ArrVal_10389 (Array Int Int)) (v_ArrVal_10388 (Array Int Int)) (v_ArrVal_10387 (Array Int Int)) (v_ArrVal_10386 (Array Int Int)) (|ULTIMATE.start_main_#t~nondet49#1| Int) (v_ArrVal_10384 (Array Int Int)) (v_ArrVal_10407 (Array Int Int)) (v_ArrVal_10403 (Array Int Int)) (v_ArrVal_10369 (Array Int Int)) (v_ArrVal_10402 (Array Int Int)) (v_ArrVal_10368 (Array Int Int)) (|ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| Int) (v_ArrVal_10401 (Array Int Int)) (v_ArrVal_10370 (Array Int Int)) (v_ArrVal_10392 (Array Int Int)) (v_ArrVal_10391 (Array Int Int)) (v_ArrVal_10378 (Array Int Int)) (v_ArrVal_10377 (Array Int Int)) (v_ArrVal_10376 (Array Int Int)) (v_ArrVal_10375 (Array Int Int)) (v_ArrVal_10397 (Array Int Int)) (v_ArrVal_10374 (Array Int Int)) (v_ArrVal_10373 (Array Int Int)) (v_ArrVal_10372 (Array Int Int)) (v_ArrVal_10371 (Array Int Int)) (v_ArrVal_10393 (Array Int Int))) (not (= (mod (select (select (store (store (store (store (store (store (store (store (store (store (store (store (store (let ((.cse0 (store (store (store (store (store (store (store (store (store (store (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10368) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10367) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10369) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10370) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10371) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10372) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10373) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10376) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10374) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10375) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10378) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10377) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| v_ArrVal_10380) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10379))) (store .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.base|) (+ |ULTIMATE.start_main_~j~2#1| |ULTIMATE.start_main_~#__CS_cp___CS_thread_status~0#1.offset| (* 3 |ULTIMATE.start_main_~i~0#1|)) |ULTIMATE.start_main_#t~nondet49#1|))) |c_ULTIMATE.start_main_~#__CS_cp___CS_thread_lockedon~0#1.base| v_ArrVal_10384) |c_ULTIMATE.start_main_~#__CS_cp_ma~0#1.base| v_ArrVal_10388) |c_ULTIMATE.start_main_~#__CS_cp_mb~0#1.base| v_ArrVal_10387) |c_ULTIMATE.start_main_~#__CS_cp_data1~0#1.base| v_ArrVal_10389) |c_ULTIMATE.start_main_~#__CS_cp_data2~0#1.base| v_ArrVal_10386) |c_~#__CS_thread_status~0.base| v_ArrVal_10393) |c_~#__CS_thread_lockedon~0.base| v_ArrVal_10392) |c_~#ma~0.base| v_ArrVal_10402) |c_~#mb~0.base| v_ArrVal_10401) |c_~#data1~0.base| v_ArrVal_10397) |c_~#data2~0.base| v_ArrVal_10403) |c_~#__CS_thread_born_round~0.base| v_ArrVal_10391) |c_~#__CS_thread_status~0.base| v_ArrVal_10407) |c_~#__CS_thread_allocated~0.base|) (+ 2 |c_~#__CS_thread_allocated~0.offset|)) 256) 1))) is different from false [2022-10-16 16:58:45,659 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 64 not checked. [2022-10-16 16:58:45,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1357958843] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:58:45,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:58:45,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 19] total 37 [2022-10-16 16:58:45,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043258852] [2022-10-16 16:58:45,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:58:45,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-10-16 16:58:45,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:58:45,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-10-16 16:58:45,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=642, Unknown=10, NotChecked=540, Total=1332 [2022-10-16 16:58:45,663 INFO L87 Difference]: Start difference. First operand 258 states and 371 transitions. Second operand has 37 states, 37 states have (on average 4.837837837837838) internal successors, (179), 34 states have internal predecessors, (179), 8 states have call successors, (16), 10 states have call predecessors, (16), 8 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2022-10-16 16:59:28,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []