/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_sync.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 16:56:14,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 16:56:14,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 16:56:14,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 16:56:14,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 16:56:14,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 16:56:14,647 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 16:56:14,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 16:56:14,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 16:56:14,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 16:56:14,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 16:56:14,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 16:56:14,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 16:56:14,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 16:56:14,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 16:56:14,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 16:56:14,673 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 16:56:14,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 16:56:14,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 16:56:14,679 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 16:56:14,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 16:56:14,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 16:56:14,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 16:56:14,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 16:56:14,689 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 16:56:14,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 16:56:14,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 16:56:14,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 16:56:14,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 16:56:14,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 16:56:14,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 16:56:14,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 16:56:14,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 16:56:14,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 16:56:14,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 16:56:14,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 16:56:14,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 16:56:14,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 16:56:14,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 16:56:14,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 16:56:14,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 16:56:14,702 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 16:56:14,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 16:56:14,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 16:56:14,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 16:56:14,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 16:56:14,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 16:56:14,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 16:56:14,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 16:56:14,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 16:56:14,749 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 16:56:14,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 16:56:14,749 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 16:56:14,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 16:56:14,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 16:56:14,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 16:56:14,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 16:56:14,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 16:56:14,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 16:56:14,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 16:56:14,751 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 16:56:14,752 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 16:56:14,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 16:56:14,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 16:56:14,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 16:56:14,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 16:56:14,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 16:56:14,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 16:56:14,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:56:14,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 16:56:14,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 16:56:14,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 16:56:14,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 16:56:14,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 16:56:14,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 16:56:14,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 16:56:15,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 16:56:15,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 16:56:15,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 16:56:15,196 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 16:56:15,197 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 16:56:15,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-pthread/cs_sync.i [2022-10-16 16:56:15,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd885727/d070e2f9a4284d1f82074bf87b2ded6b/FLAG186852635 [2022-10-16 16:56:15,960 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 16:56:15,960 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-pthread/cs_sync.i [2022-10-16 16:56:15,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd885727/d070e2f9a4284d1f82074bf87b2ded6b/FLAG186852635 [2022-10-16 16:56:16,240 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bd885727/d070e2f9a4284d1f82074bf87b2ded6b [2022-10-16 16:56:16,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 16:56:16,252 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 16:56:16,257 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 16:56:16,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 16:56:16,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 16:56:16,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:56:16" (1/1) ... [2022-10-16 16:56:16,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ee582b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:16, skipping insertion in model container [2022-10-16 16:56:16,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:56:16" (1/1) ... [2022-10-16 16:56:16,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 16:56:16,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 16:56:16,988 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_sync.i[34698,34711] [2022-10-16 16:56:17,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:56:17,217 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 16:56:17,289 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_sync.i[34698,34711] [2022-10-16 16:56:17,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 16:56:17,553 INFO L208 MainTranslator]: Completed translation [2022-10-16 16:56:17,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17 WrapperNode [2022-10-16 16:56:17,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 16:56:17,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 16:56:17,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 16:56:17,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 16:56:17,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,719 INFO L138 Inliner]: procedures = 245, calls = 244, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 552 [2022-10-16 16:56:17,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 16:56:17,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 16:56:17,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 16:56:17,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 16:56:17,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,783 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,788 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 16:56:17,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 16:56:17,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 16:56:17,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 16:56:17,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (1/1) ... [2022-10-16 16:56:17,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 16:56:17,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:17,860 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 16:56:17,891 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 16:56:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 16:56:17,948 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 16:56:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 16:56:17,948 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_signal [2022-10-16 16:56:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_signal [2022-10-16 16:56:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_lock [2022-10-16 16:56:17,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_lock [2022-10-16 16:56:17,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 16:56:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 16:56:17,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 16:56:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_mutex_unlock [2022-10-16 16:56:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_mutex_unlock [2022-10-16 16:56:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 16:56:17,951 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_init [2022-10-16 16:56:17,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_init [2022-10-16 16:56:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 16:56:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 16:56:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 16:56:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_create [2022-10-16 16:56:17,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_create [2022-10-16 16:56:17,952 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_cond_wait [2022-10-16 16:56:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_cond_wait [2022-10-16 16:56:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_pthread_join [2022-10-16 16:56:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_pthread_join [2022-10-16 16:56:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:56:17,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-10-16 16:56:17,953 INFO L130 BoogieDeclarations]: Found specification of procedure __CS_cs [2022-10-16 16:56:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __CS_cs [2022-10-16 16:56:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 16:56:17,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 16:56:17,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 16:56:18,227 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 16:56:18,231 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 16:56:18,763 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:18,764 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: 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 16:56:18,764 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:18,764 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: 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 16:56:18,764 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L991: SUMMARY for call __CS_cs(); srcloc: null [2022-10-16 16:56:18,765 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: 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 16:56:18,765 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L991-1: assume !(0 != ~__CS_ret~0 % 256); [2022-10-16 16:56:19,694 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 16:56:19,706 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 16:56:19,706 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-16 16:56:19,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:56:19 BoogieIcfgContainer [2022-10-16 16:56:19,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 16:56:19,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 16:56:19,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 16:56:19,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 16:56:19,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:56:16" (1/3) ... [2022-10-16 16:56:19,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ea5a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:56:19, skipping insertion in model container [2022-10-16 16:56:19,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:56:17" (2/3) ... [2022-10-16 16:56:19,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73ea5a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:56:19, skipping insertion in model container [2022-10-16 16:56:19,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:56:19" (3/3) ... [2022-10-16 16:56:19,720 INFO L112 eAbstractionObserver]: Analyzing ICFG cs_sync.i [2022-10-16 16:56:19,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 16:56:19,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-10-16 16:56:19,846 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 16:56:19,855 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;@4e29eac1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 16:56:19,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-10-16 16:56:19,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 236 states, 148 states have (on average 1.5337837837837838) internal successors, (227), 170 states have internal predecessors, (227), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2022-10-16 16:56:19,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 16:56:19,877 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:19,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 16:56:19,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:19,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1907278486, now seen corresponding path program 1 times [2022-10-16 16:56:19,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:19,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586885363] [2022-10-16 16:56:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:20,410 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 16:56:20,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:20,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586885363] [2022-10-16 16:56:20,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586885363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:20,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:20,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:20,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634681178] [2022-10-16 16:56:20,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:20,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 16:56:20,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 16:56:20,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 16:56:20,468 INFO L87 Difference]: Start difference. First operand has 236 states, 148 states have (on average 1.5337837837837838) internal successors, (227), 170 states have internal predecessors, (227), 55 states have call successors, (55), 10 states have call predecessors, (55), 10 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:20,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:20,596 INFO L93 Difference]: Finished difference Result 464 states and 725 transitions. [2022-10-16 16:56:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 16:56:20,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 16:56:20,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:20,613 INFO L225 Difference]: With dead ends: 464 [2022-10-16 16:56:20,613 INFO L226 Difference]: Without dead ends: 201 [2022-10-16 16:56:20,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 16:56:20,633 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 5 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:20,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 628 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2022-10-16 16:56:20,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 196. [2022-10-16 16:56:20,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 131 states have (on average 1.4427480916030535) internal successors, (189), 141 states have internal predecessors, (189), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:20,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2022-10-16 16:56:20,715 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 278 transitions. Word has length 6 [2022-10-16 16:56:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:20,716 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 278 transitions. [2022-10-16 16:56:20,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 278 transitions. [2022-10-16 16:56:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 16:56:20,717 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:20,717 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 16:56:20,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 16:56:20,718 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1907276820, now seen corresponding path program 1 times [2022-10-16 16:56:20,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:20,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822994885] [2022-10-16 16:56:20,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:20,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:21,000 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 16:56:21,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:21,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822994885] [2022-10-16 16:56:21,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822994885] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:21,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:21,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:21,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998595936] [2022-10-16 16:56:21,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:21,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:21,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:21,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:21,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:21,005 INFO L87 Difference]: Start difference. First operand 196 states and 278 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:21,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:21,111 INFO L93 Difference]: Finished difference Result 201 states and 283 transitions. [2022-10-16 16:56:21,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:21,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 16:56:21,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:21,118 INFO L225 Difference]: With dead ends: 201 [2022-10-16 16:56:21,118 INFO L226 Difference]: Without dead ends: 199 [2022-10-16 16:56:21,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:56:21,124 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 3 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:21,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 814 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:21,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-16 16:56:21,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-10-16 16:56:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 134 states have (on average 1.4328358208955223) internal successors, (192), 144 states have internal predecessors, (192), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 281 transitions. [2022-10-16 16:56:21,175 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 281 transitions. Word has length 6 [2022-10-16 16:56:21,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:21,175 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 281 transitions. [2022-10-16 16:56:21,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 16:56:21,175 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 281 transitions. [2022-10-16 16:56:21,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 16:56:21,176 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:21,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:21,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 16:56:21,177 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:21,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:21,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1146168538, now seen corresponding path program 1 times [2022-10-16 16:56:21,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:21,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118598037] [2022-10-16 16:56:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:21,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:21,502 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 16:56:21,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:21,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118598037] [2022-10-16 16:56:21,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118598037] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:21,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [627038337] [2022-10-16 16:56:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:21,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:21,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:21,512 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 16:56:21,534 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 16:56:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:21,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:56:21,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:21,821 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 16:56:21,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:21,855 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 16:56:21,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [627038337] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:21,856 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:21,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-10-16 16:56:21,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426579778] [2022-10-16 16:56:21,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:21,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 16:56:21,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:21,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 16:56:21,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:56:21,858 INFO L87 Difference]: Start difference. First operand 199 states and 281 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 16:56:21,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:21,984 INFO L93 Difference]: Finished difference Result 402 states and 569 transitions. [2022-10-16 16:56:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 16:56:21,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 16:56:21,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:21,988 INFO L225 Difference]: With dead ends: 402 [2022-10-16 16:56:21,988 INFO L226 Difference]: Without dead ends: 205 [2022-10-16 16:56:21,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:56:21,992 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 21 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1353 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:21,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1353 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:21,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-16 16:56:22,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 204. [2022-10-16 16:56:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 139 states have (on average 1.4244604316546763) internal successors, (198), 149 states have internal predecessors, (198), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:22,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 287 transitions. [2022-10-16 16:56:22,012 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 287 transitions. Word has length 10 [2022-10-16 16:56:22,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:22,012 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 287 transitions. [2022-10-16 16:56:22,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 16:56:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 287 transitions. [2022-10-16 16:56:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 16:56:22,013 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:22,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:56:22,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 16:56:22,227 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 16:56:22,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:22,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:22,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1171434269, now seen corresponding path program 1 times [2022-10-16 16:56:22,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:22,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926823875] [2022-10-16 16:56:22,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:22,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:22,434 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:22,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:22,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926823875] [2022-10-16 16:56:22,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926823875] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:22,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125814047] [2022-10-16 16:56:22,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:22,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:22,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:22,437 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 16:56:22,484 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 16:56:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:22,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:56:22,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 16:56:22,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:22,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125814047] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:22,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:22,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 16:56:22,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927571892] [2022-10-16 16:56:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:22,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:22,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:22,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:22,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:56:22,727 INFO L87 Difference]: Start difference. First operand 204 states and 287 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 16:56:22,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:22,790 INFO L93 Difference]: Finished difference Result 218 states and 308 transitions. [2022-10-16 16:56:22,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:22,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-10-16 16:56:22,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:22,794 INFO L225 Difference]: With dead ends: 218 [2022-10-16 16:56:22,794 INFO L226 Difference]: Without dead ends: 217 [2022-10-16 16:56:22,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:56:22,800 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 25 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:22,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 841 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:22,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-10-16 16:56:22,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 203. [2022-10-16 16:56:22,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 139 states have (on average 1.410071942446043) internal successors, (196), 148 states have internal predecessors, (196), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:22,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 285 transitions. [2022-10-16 16:56:22,842 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 285 transitions. Word has length 11 [2022-10-16 16:56:22,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:22,843 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 285 transitions. [2022-10-16 16:56:22,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 16:56:22,843 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 285 transitions. [2022-10-16 16:56:22,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 16:56:22,845 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:22,845 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1] [2022-10-16 16:56:22,887 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 16:56:23,059 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 16:56:23,060 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1588641436, now seen corresponding path program 1 times [2022-10-16 16:56:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:23,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480079144] [2022-10-16 16:56:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:23,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:23,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 16:56:23,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:23,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480079144] [2022-10-16 16:56:23,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480079144] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:23,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:23,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:23,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479191235] [2022-10-16 16:56:23,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:23,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:23,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:23,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:23,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:23,191 INFO L87 Difference]: Start difference. First operand 203 states and 285 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 16:56:23,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:23,233 INFO L93 Difference]: Finished difference Result 203 states and 285 transitions. [2022-10-16 16:56:23,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:23,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 14 [2022-10-16 16:56:23,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:23,236 INFO L225 Difference]: With dead ends: 203 [2022-10-16 16:56:23,236 INFO L226 Difference]: Without dead ends: 202 [2022-10-16 16:56:23,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:56:23,237 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 3 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:23,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 809 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:23,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-10-16 16:56:23,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2022-10-16 16:56:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 139 states have (on average 1.4028776978417266) internal successors, (195), 147 states have internal predecessors, (195), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 284 transitions. [2022-10-16 16:56:23,252 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 284 transitions. Word has length 14 [2022-10-16 16:56:23,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:23,253 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 284 transitions. [2022-10-16 16:56:23,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 16:56:23,253 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 284 transitions. [2022-10-16 16:56:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 16:56:23,254 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:23,254 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:23,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 16:56:23,255 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:23,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:23,255 INFO L85 PathProgramCache]: Analyzing trace with hash -67019618, now seen corresponding path program 2 times [2022-10-16 16:56:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:23,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725435832] [2022-10-16 16:56:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:23,410 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 16:56:23,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:23,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725435832] [2022-10-16 16:56:23,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725435832] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:23,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:23,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:23,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805788643] [2022-10-16 16:56:23,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:23,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:23,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:23,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:23,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:23,413 INFO L87 Difference]: Start difference. First operand 202 states and 284 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 16:56:23,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:23,490 INFO L93 Difference]: Finished difference Result 402 states and 566 transitions. [2022-10-16 16:56:23,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:23,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 18 [2022-10-16 16:56:23,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:23,493 INFO L225 Difference]: With dead ends: 402 [2022-10-16 16:56:23,493 INFO L226 Difference]: Without dead ends: 219 [2022-10-16 16:56:23,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:56:23,496 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 3 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:23,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 806 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:23,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-10-16 16:56:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2022-10-16 16:56:23,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 156 states have (on average 1.3653846153846154) internal successors, (213), 164 states have internal predecessors, (213), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:23,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 302 transitions. [2022-10-16 16:56:23,525 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 302 transitions. Word has length 18 [2022-10-16 16:56:23,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:23,525 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 302 transitions. [2022-10-16 16:56:23,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 16:56:23,526 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 302 transitions. [2022-10-16 16:56:23,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 16:56:23,527 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:23,527 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 16:56:23,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 16:56:23,528 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:23,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:23,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1242930959, now seen corresponding path program 1 times [2022-10-16 16:56:23,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:23,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875172076] [2022-10-16 16:56:23,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:23,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:23,734 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-10-16 16:56:23,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:23,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875172076] [2022-10-16 16:56:23,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875172076] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:23,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:23,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 16:56:23,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756620280] [2022-10-16 16:56:23,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:23,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 16:56:23,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:23,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 16:56:23,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 16:56:23,737 INFO L87 Difference]: Start difference. First operand 219 states and 302 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 16:56:23,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:23,793 INFO L93 Difference]: Finished difference Result 219 states and 302 transitions. [2022-10-16 16:56:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 16:56:23,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 35 [2022-10-16 16:56:23,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:23,796 INFO L225 Difference]: With dead ends: 219 [2022-10-16 16:56:23,796 INFO L226 Difference]: Without dead ends: 218 [2022-10-16 16:56:23,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 16:56:23,797 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 5 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:23,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 797 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 16:56:23,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2022-10-16 16:56:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2022-10-16 16:56:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 156 states have (on average 1.358974358974359) internal successors, (212), 163 states have internal predecessors, (212), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:23,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2022-10-16 16:56:23,812 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 35 [2022-10-16 16:56:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:23,812 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2022-10-16 16:56:23,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 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 16:56:23,813 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2022-10-16 16:56:23,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-16 16:56:23,814 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:23,814 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 16:56:23,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 16:56:23,814 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:23,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:23,815 INFO L85 PathProgramCache]: Analyzing trace with hash 123846338, now seen corresponding path program 1 times [2022-10-16 16:56:23,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:23,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155859480] [2022-10-16 16:56:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:23,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:24,125 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 16:56:24,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:24,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155859480] [2022-10-16 16:56:24,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155859480] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:24,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376915431] [2022-10-16 16:56:24,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:24,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:24,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:24,127 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 16:56:24,152 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 16:56:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:24,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 16:56:24,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-10-16 16:56:24,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:56:24,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376915431] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:24,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:56:24,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 16:56:24,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415022045] [2022-10-16 16:56:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:24,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:56:24,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:24,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:56:24,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:56:24,533 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 16:56:24,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:24,656 INFO L93 Difference]: Finished difference Result 218 states and 301 transitions. [2022-10-16 16:56:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 16:56:24,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 36 [2022-10-16 16:56:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:24,660 INFO L225 Difference]: With dead ends: 218 [2022-10-16 16:56:24,660 INFO L226 Difference]: Without dead ends: 217 [2022-10-16 16:56:24,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 16:56:24,661 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 19 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:24,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1037 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 16:56:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-10-16 16:56:24,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 201. [2022-10-16 16:56:24,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 140 states have (on average 1.3857142857142857) internal successors, (194), 146 states have internal predecessors, (194), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 283 transitions. [2022-10-16 16:56:24,679 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 283 transitions. Word has length 36 [2022-10-16 16:56:24,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:24,680 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 283 transitions. [2022-10-16 16:56:24,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 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 16:56:24,680 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 283 transitions. [2022-10-16 16:56:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-10-16 16:56:24,684 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:24,685 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:24,734 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 16:56:24,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:24,898 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:24,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:24,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1215500614, now seen corresponding path program 1 times [2022-10-16 16:56:24,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:24,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587763638] [2022-10-16 16:56:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:24,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 16:56:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:56:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-16 16:56:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 16:56:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:56:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-16 16:56:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:25,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:56:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:25,708 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-10-16 16:56:25,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:25,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587763638] [2022-10-16 16:56:25,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587763638] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:56:25,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [244094178] [2022-10-16 16:56:25,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:25,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:25,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:56:25,710 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 16:56:25,724 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 16:56:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:26,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 16:56:26,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:56:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-10-16 16:56:26,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 16:56:26,534 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-10-16 16:56:26,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [244094178] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 16:56:26,534 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 16:56:26,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 9 [2022-10-16 16:56:26,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999296970] [2022-10-16 16:56:26,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 16:56:26,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 16:56:26,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:26,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 16:56:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-10-16 16:56:26,537 INFO L87 Difference]: Start difference. First operand 201 states and 283 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 16:56:28,658 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 16:56:30,677 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 16:56:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:31,486 INFO L93 Difference]: Finished difference Result 415 states and 585 transitions. [2022-10-16 16:56:31,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 16:56:31,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 101 [2022-10-16 16:56:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:31,491 INFO L225 Difference]: With dead ends: 415 [2022-10-16 16:56:31,492 INFO L226 Difference]: Without dead ends: 234 [2022-10-16 16:56:31,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 216 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-10-16 16:56:31,494 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 119 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 102 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:31,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1018 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 508 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2022-10-16 16:56:31,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2022-10-16 16:56:31,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 218. [2022-10-16 16:56:31,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 157 states have (on average 1.3503184713375795) internal successors, (212), 163 states have internal predecessors, (212), 45 states have call successors, (45), 10 states have call predecessors, (45), 10 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2022-10-16 16:56:31,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2022-10-16 16:56:31,513 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 101 [2022-10-16 16:56:31,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:31,514 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2022-10-16 16:56:31,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 7 states have internal predecessors, (66), 2 states have call successors, (17), 4 states have call predecessors, (17), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 16:56:31,514 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2022-10-16 16:56:31,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 16:56:31,516 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:31,517 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:31,560 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 16:56:31,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:56:31,732 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~TO~$Pointer$Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:31,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:31,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1897833459, now seen corresponding path program 1 times [2022-10-16 16:56:31,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:31,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623835605] [2022-10-16 16:56:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:31,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 16:56:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:56:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 16:56:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 16:56:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:56:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 16:56:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:56:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:56:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:56:33,097 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 16:56:33,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:56:33,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623835605] [2022-10-16 16:56:33,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623835605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:56:33,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:56:33,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 16:56:33,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104539911] [2022-10-16 16:56:33,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:56:33,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:56:33,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:56:33,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:56:33,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 16:56:33,100 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 16:56:35,140 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 16:56:37,155 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 16:56:38,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:56:38,366 INFO L93 Difference]: Finished difference Result 644 states and 924 transitions. [2022-10-16 16:56:38,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 16:56:38,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 118 [2022-10-16 16:56:38,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:56:38,373 INFO L225 Difference]: With dead ends: 644 [2022-10-16 16:56:38,373 INFO L226 Difference]: Without dead ends: 466 [2022-10-16 16:56:38,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 16:56:38,376 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 527 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 275 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-10-16 16:56:38,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 944 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 601 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2022-10-16 16:56:38,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2022-10-16 16:56:38,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 426. [2022-10-16 16:56:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 298 states have (on average 1.3926174496644295) internal successors, (415), 305 states have internal predecessors, (415), 100 states have call successors, (100), 21 states have call predecessors, (100), 22 states have return successors, (104), 99 states have call predecessors, (104), 98 states have call successors, (104) [2022-10-16 16:56:38,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 619 transitions. [2022-10-16 16:56:38,431 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 619 transitions. Word has length 118 [2022-10-16 16:56:38,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:56:38,431 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 619 transitions. [2022-10-16 16:56:38,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 4 states have internal predecessors, (39), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 16:56:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 619 transitions. [2022-10-16 16:56:38,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-10-16 16:56:38,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:56:38,434 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:56:38,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 16:56:38,435 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:56:38,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:56:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash 1695820060, now seen corresponding path program 1 times [2022-10-16 16:56:38,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:56:38,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039815654] [2022-10-16 16:56:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:56:38,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:56:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-16 16:58:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:56,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:58:56,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-10-16 16:58:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-10-16 16:58:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:58:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-10-16 16:58:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:58:56,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:58:56,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:58:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 16:58:56,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:58:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039815654] [2022-10-16 16:58:56,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039815654] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:58:56,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:58:56,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-16 16:58:56,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922019731] [2022-10-16 16:58:56,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:58:56,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 16:58:56,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:58:56,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 16:58:56,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-16 16:58:56,189 INFO L87 Difference]: Start difference. First operand 426 states and 619 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 16:58:58,376 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 16:58:59,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:58:59,452 INFO L93 Difference]: Finished difference Result 902 states and 1314 transitions. [2022-10-16 16:58:59,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 16:58:59,453 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 120 [2022-10-16 16:58:59,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:58:59,459 INFO L225 Difference]: With dead ends: 902 [2022-10-16 16:58:59,460 INFO L226 Difference]: Without dead ends: 550 [2022-10-16 16:58:59,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:58:59,464 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 251 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 153 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:58:59,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 879 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 625 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2022-10-16 16:58:59,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-10-16 16:58:59,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 510. [2022-10-16 16:58:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 356 states have (on average 1.3651685393258426) internal successors, (486), 363 states have internal predecessors, (486), 120 states have call successors, (120), 26 states have call predecessors, (120), 28 states have return successors, (132), 120 states have call predecessors, (132), 117 states have call successors, (132) [2022-10-16 16:58:59,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 738 transitions. [2022-10-16 16:58:59,514 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 738 transitions. Word has length 120 [2022-10-16 16:58:59,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:58:59,514 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 738 transitions. [2022-10-16 16:58:59,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 16:58:59,515 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 738 transitions. [2022-10-16 16:58:59,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-10-16 16:58:59,517 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:58:59,517 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:58:59,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 16:58:59,518 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:58:59,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:58:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1740045433, now seen corresponding path program 2 times [2022-10-16 16:58:59,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:58:59,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732728723] [2022-10-16 16:58:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:58:59,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:59:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 16:59:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:59:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:59:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 16:59:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 16:59:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:59:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:59:07,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-16 16:59:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:59:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:59:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:07,434 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-10-16 16:59:07,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:59:07,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732728723] [2022-10-16 16:59:07,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732728723] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 16:59:07,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247890500] [2022-10-16 16:59:07,435 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 16:59:07,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 16:59:07,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 16:59:07,440 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 16:59:07,442 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 16:59:08,146 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 16:59:08,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 16:59:08,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 16:59:08,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 16:59:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-10-16 16:59:08,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 16:59:08,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247890500] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:59:08,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 16:59:08,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-10-16 16:59:08,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788835239] [2022-10-16 16:59:08,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:59:08,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 16:59:08,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:59:08,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 16:59:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-10-16 16:59:08,445 INFO L87 Difference]: Start difference. First operand 510 states and 738 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 16:59:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:59:09,081 INFO L93 Difference]: Finished difference Result 1153 states and 1750 transitions. [2022-10-16 16:59:09,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 16:59:09,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 118 [2022-10-16 16:59:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:59:09,096 INFO L225 Difference]: With dead ends: 1153 [2022-10-16 16:59:09,096 INFO L226 Difference]: Without dead ends: 680 [2022-10-16 16:59:09,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-10-16 16:59:09,104 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 450 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 16:59:09,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 811 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 16:59:09,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2022-10-16 16:59:09,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 665. [2022-10-16 16:59:09,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 483 states have (on average 1.269151138716356) internal successors, (613), 444 states have internal predecessors, (613), 133 states have call successors, (133), 31 states have call predecessors, (133), 43 states have return successors, (217), 189 states have call predecessors, (217), 130 states have call successors, (217) [2022-10-16 16:59:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 963 transitions. [2022-10-16 16:59:09,191 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 963 transitions. Word has length 118 [2022-10-16 16:59:09,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:59:09,192 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 963 transitions. [2022-10-16 16:59:09,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2022-10-16 16:59:09,193 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 963 transitions. [2022-10-16 16:59:09,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 16:59:09,202 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:59:09,202 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:59:09,247 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 16:59:09,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 16:59:09,419 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:59:09,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:59:09,420 INFO L85 PathProgramCache]: Analyzing trace with hash 603966084, now seen corresponding path program 1 times [2022-10-16 16:59:09,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:59:09,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115799468] [2022-10-16 16:59:09,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:59:09,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:59:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 16:59:16,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:59:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:59:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 16:59:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-10-16 16:59:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:59:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:59:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 16:59:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 16:59:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 16:59:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 16:59:16,569 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2022-10-16 16:59:16,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 16:59:16,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115799468] [2022-10-16 16:59:16,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115799468] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 16:59:16,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 16:59:16,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 16:59:16,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199949501] [2022-10-16 16:59:16,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 16:59:16,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 16:59:16,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 16:59:16,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 16:59:16,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 16:59:16,571 INFO L87 Difference]: Start difference. First operand 665 states and 963 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 16:59:18,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 16:59:20,626 WARN L539 Checker$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 16:59:21,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 16:59:21,736 INFO L93 Difference]: Finished difference Result 1256 states and 1808 transitions. [2022-10-16 16:59:21,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 16:59:21,736 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 121 [2022-10-16 16:59:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 16:59:21,743 INFO L225 Difference]: With dead ends: 1256 [2022-10-16 16:59:21,743 INFO L226 Difference]: Without dead ends: 638 [2022-10-16 16:59:21,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 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 16:59:21,750 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 468 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 239 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-10-16 16:59:21,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 915 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 550 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2022-10-16 16:59:21,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-10-16 16:59:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 604. [2022-10-16 16:59:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 440 states have (on average 1.2636363636363637) internal successors, (556), 408 states have internal predecessors, (556), 117 states have call successors, (117), 29 states have call predecessors, (117), 41 states have return successors, (192), 166 states have call predecessors, (192), 114 states have call successors, (192) [2022-10-16 16:59:21,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 865 transitions. [2022-10-16 16:59:21,820 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 865 transitions. Word has length 121 [2022-10-16 16:59:21,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 16:59:21,821 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 865 transitions. [2022-10-16 16:59:21,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-16 16:59:21,821 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 865 transitions. [2022-10-16 16:59:21,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-10-16 16:59:21,824 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 16:59:21,825 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 16:59:21,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 16:59:21,825 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ##fun~$Pointer$~TO~$Pointer$Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__CS_pthread_cond_signalErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __CS_pthread_cond_signalErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2022-10-16 16:59:21,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 16:59:21,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1515559001, now seen corresponding path program 1 times [2022-10-16 16:59:21,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 16:59:21,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496974170] [2022-10-16 16:59:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 16:59:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 16:59:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat