/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 08:55:46,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 08:55:46,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 08:55:46,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 08:55:46,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 08:55:46,502 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 08:55:46,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 08:55:46,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 08:55:46,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 08:55:46,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 08:55:46,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 08:55:46,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 08:55:46,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 08:55:46,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 08:55:46,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 08:55:46,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 08:55:46,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 08:55:46,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 08:55:46,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 08:55:46,518 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 08:55:46,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 08:55:46,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 08:55:46,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 08:55:46,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 08:55:46,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 08:55:46,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 08:55:46,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 08:55:46,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 08:55:46,546 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2022-01-18 08:55:46,575 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 08:55:46,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 08:55:46,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 08:55:46,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 08:55:46,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 08:55:46,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 08:55:46,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 08:55:46,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 08:55:46,577 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 08:55:46,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 08:55:46,578 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 08:55:46,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 08:55:46,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 08:55:46,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 08:55:46,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 08:55:46,579 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 08:55:46,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 08:55:46,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 08:55:46,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:55:46,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 08:55:46,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 08:55:46,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 08:55:46,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 08:55:46,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 08:55:46,581 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 08:55:46,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 08:55:46,582 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 08:55:46,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 08:55:46,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 08:55:46,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 08:55:46,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 08:55:46,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 08:55:46,805 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 08:55:46,806 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2022-01-18 08:55:46,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95fad0ea/9d76c6d5fcb542f588f3b7fb5c908049/FLAGced7f0825 [2022-01-18 08:55:47,214 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 08:55:47,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2022-01-18 08:55:47,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95fad0ea/9d76c6d5fcb542f588f3b7fb5c908049/FLAGced7f0825 [2022-01-18 08:55:47,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b95fad0ea/9d76c6d5fcb542f588f3b7fb5c908049 [2022-01-18 08:55:47,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 08:55:47,606 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 08:55:47,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 08:55:47,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 08:55:47,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 08:55:47,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:47,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ba71be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47, skipping insertion in model container [2022-01-18 08:55:47,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:47,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 08:55:47,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 08:55:47,810 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 08:55:47,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2022-01-18 08:55:47,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:55:47,942 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 08:55:47,951 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 08:55:47,968 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i[30893,30906] [2022-01-18 08:55:47,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:55:47,999 INFO L208 MainTranslator]: Completed translation [2022-01-18 08:55:47,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47 WrapperNode [2022-01-18 08:55:48,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 08:55:48,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 08:55:48,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 08:55:48,001 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 08:55:48,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,033 INFO L137 Inliner]: procedures = 173, calls = 24, calls flagged for inlining = 5, calls inlined = 7, statements flattened = 108 [2022-01-18 08:55:48,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 08:55:48,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 08:55:48,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 08:55:48,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 08:55:48,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 08:55:48,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 08:55:48,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 08:55:48,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 08:55:48,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (1/1) ... [2022-01-18 08:55:48,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:55:48,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:55:48,116 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) [2022-01-18 08:55:48,141 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 [2022-01-18 08:55:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-18 08:55:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-18 08:55:48,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-18 08:55:48,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 08:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 08:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 08:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 08:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 08:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 08:55:48,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 08:55:48,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 08:55:48,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 08:55:48,163 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 08:55:48,243 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 08:55:48,244 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 08:55:48,381 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 08:55:48,502 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 08:55:48,502 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-18 08:55:48,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:55:48 BoogieIcfgContainer [2022-01-18 08:55:48,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 08:55:48,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 08:55:48,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 08:55:48,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 08:55:48,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 08:55:47" (1/3) ... [2022-01-18 08:55:48,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8463b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:55:48, skipping insertion in model container [2022-01-18 08:55:48,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:55:47" (2/3) ... [2022-01-18 08:55:48,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8463b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:55:48, skipping insertion in model container [2022-01-18 08:55:48,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:55:48" (3/3) ... [2022-01-18 08:55:48,512 INFO L111 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2022-01-18 08:55:48,516 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 08:55:48,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 08:55:48,516 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-18 08:55:48,516 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 08:55:48,549 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,549 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,549 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,550 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,550 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,550 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,550 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,550 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,550 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,551 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,551 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,551 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,552 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,553 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,553 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,553 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,553 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,553 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,553 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,553 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,554 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,554 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,554 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,554 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,555 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,555 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,555 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,555 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,555 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,555 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,556 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,556 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,556 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,557 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,557 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,557 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,557 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,557 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,558 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,558 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,558 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,558 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,558 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,558 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,558 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,561 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,561 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,561 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,561 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,561 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,561 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,561 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,562 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,562 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,562 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,562 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,562 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,562 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,562 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:48,563 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:55:48,595 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:55:48,600 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:48,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 08:55:48,609 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 75 transitions, 155 flow [2022-01-18 08:55:48,676 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 524 states, 518 states have (on average 2.0463320463320462) internal successors, (1060), 523 states have internal predecessors, (1060), 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) [2022-01-18 08:55:48,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 524 states, 518 states have (on average 2.0463320463320462) internal successors, (1060), 523 states have internal predecessors, (1060), 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) [2022-01-18 08:55:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-18 08:55:48,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:48,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:48,686 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:48,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:48,695 INFO L85 PathProgramCache]: Analyzing trace with hash 24858482, now seen corresponding path program 1 times [2022-01-18 08:55:48,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:48,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311354048] [2022-01-18 08:55:48,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:48,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:48,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:48,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:48,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311354048] [2022-01-18 08:55:48,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311354048] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:48,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:48,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:48,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159783624] [2022-01-18 08:55:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:48,887 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 08:55:48,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:48,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 08:55:48,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 08:55:48,958 INFO L87 Difference]: Start difference. First operand has 524 states, 518 states have (on average 2.0463320463320462) internal successors, (1060), 523 states have internal predecessors, (1060), 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) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-01-18 08:55:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:49,005 INFO L93 Difference]: Finished difference Result 494 states and 953 transitions. [2022-01-18 08:55:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 08:55:49,007 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2022-01-18 08:55:49,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:49,019 INFO L225 Difference]: With dead ends: 494 [2022-01-18 08:55:49,020 INFO L226 Difference]: Without dead ends: 459 [2022-01-18 08:55:49,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 08:55:49,024 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:49,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2022-01-18 08:55:49,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2022-01-18 08:55:49,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 454 states have (on average 1.9449339207048457) internal successors, (883), 458 states have internal predecessors, (883), 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) [2022-01-18 08:55:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 883 transitions. [2022-01-18 08:55:49,085 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 883 transitions. Word has length 28 [2022-01-18 08:55:49,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:49,086 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 883 transitions. [2022-01-18 08:55:49,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-01-18 08:55:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 883 transitions. [2022-01-18 08:55:49,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-18 08:55:49,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:49,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:49,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 08:55:49,088 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:49,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:49,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1969669199, now seen corresponding path program 1 times [2022-01-18 08:55:49,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:49,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704441957] [2022-01-18 08:55:49,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:49,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:49,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:49,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:49,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704441957] [2022-01-18 08:55:49,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704441957] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:49,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:49,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 08:55:49,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307400346] [2022-01-18 08:55:49,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:49,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:49,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:49,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:49,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:49,193 INFO L87 Difference]: Start difference. First operand 459 states and 883 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-01-18 08:55:49,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:49,265 INFO L93 Difference]: Finished difference Result 415 states and 771 transitions. [2022-01-18 08:55:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:49,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2022-01-18 08:55:49,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:49,269 INFO L225 Difference]: With dead ends: 415 [2022-01-18 08:55:49,269 INFO L226 Difference]: Without dead ends: 194 [2022-01-18 08:55:49,270 INFO L932 BasicCegarLoop]: 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 [2022-01-18 08:55:49,271 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 45 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:49,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 148 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:49,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-01-18 08:55:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2022-01-18 08:55:49,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 192 states have (on average 1.7760416666666667) internal successors, (341), 193 states have internal predecessors, (341), 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) [2022-01-18 08:55:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 341 transitions. [2022-01-18 08:55:49,294 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 341 transitions. Word has length 30 [2022-01-18 08:55:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:49,294 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 341 transitions. [2022-01-18 08:55:49,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-01-18 08:55:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 341 transitions. [2022-01-18 08:55:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:55:49,296 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:49,296 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:55:49,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 08:55:49,296 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:49,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:49,297 INFO L85 PathProgramCache]: Analyzing trace with hash 273931782, now seen corresponding path program 1 times [2022-01-18 08:55:49,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:49,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449783207] [2022-01-18 08:55:49,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:49,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 08:55:49,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:49,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449783207] [2022-01-18 08:55:49,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449783207] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:49,532 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:49,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:55:49,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832205903] [2022-01-18 08:55:49,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:49,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:55:49,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:49,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:55:49,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:55:49,536 INFO L87 Difference]: Start difference. First operand 194 states and 341 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:55:49,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:49,603 INFO L93 Difference]: Finished difference Result 198 states and 349 transitions. [2022-01-18 08:55:49,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:55:49,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 46 [2022-01-18 08:55:49,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:49,605 INFO L225 Difference]: With dead ends: 198 [2022-01-18 08:55:49,605 INFO L226 Difference]: Without dead ends: 146 [2022-01-18 08:55:49,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:55:49,609 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 90 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:49,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 205 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:55:49,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-01-18 08:55:49,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-01-18 08:55:49,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 144 states have (on average 1.6180555555555556) internal successors, (233), 145 states have internal predecessors, (233), 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) [2022-01-18 08:55:49,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 233 transitions. [2022-01-18 08:55:49,615 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 233 transitions. Word has length 46 [2022-01-18 08:55:49,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:49,615 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 233 transitions. [2022-01-18 08:55:49,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:55:49,616 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 233 transitions. [2022-01-18 08:55:49,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:55:49,617 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:49,617 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:55:49,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 08:55:49,618 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:55:49,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:49,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1694234006, now seen corresponding path program 2 times [2022-01-18 08:55:49,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:49,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820100881] [2022-01-18 08:55:49,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:49,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 08:55:49,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:49,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820100881] [2022-01-18 08:55:49,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820100881] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:49,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:49,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:55:49,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976772660] [2022-01-18 08:55:49,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:49,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:55:49,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:49,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:55:49,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:55:49,834 INFO L87 Difference]: Start difference. First operand 146 states and 233 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:55:49,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:49,871 INFO L93 Difference]: Finished difference Result 75 states and 115 transitions. [2022-01-18 08:55:49,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:55:49,872 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 46 [2022-01-18 08:55:49,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:49,873 INFO L225 Difference]: With dead ends: 75 [2022-01-18 08:55:49,873 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:55:49,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:55:49,881 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 42 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:49,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 122 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:49,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:55:49,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:55:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-18 08:55:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:55:49,885 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2022-01-18 08:55:49,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:49,886 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:55:49,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:55:49,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:55:49,886 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:55:49,888 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 08:55:49,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-18 08:55:49,889 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-18 08:55:49,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 08:55:49,891 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-01-18 08:55:49,893 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE (1/2) [2022-01-18 08:55:49,902 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:55:49,906 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:49,906 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:55:49,910 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 73 places, 75 transitions, 155 flow [2022-01-18 08:55:49,921 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 183 states, 181 states have (on average 1.861878453038674) internal successors, (337), 182 states have internal predecessors, (337), 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) [2022-01-18 08:55:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 181 states have (on average 1.861878453038674) internal successors, (337), 182 states have internal predecessors, (337), 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) [2022-01-18 08:55:49,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-18 08:55:49,923 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:49,923 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:49,923 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:55:49,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:49,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1114984198, now seen corresponding path program 1 times [2022-01-18 08:55:49,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:49,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880443341] [2022-01-18 08:55:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:49,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:49,949 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:55:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:55:49,990 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:55:49,990 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:55:49,991 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:55:49,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-18 08:55:49,991 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:55:49,992 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:55:49,992 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:55:49,992 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 08:55:50,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,015 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,016 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,021 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,022 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,023 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,024 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,025 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,026 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,026 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,027 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,028 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,029 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,030 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,034 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,035 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,036 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,036 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,036 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,036 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,037 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,038 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,038 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,038 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,038 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,039 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,039 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,040 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,040 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,040 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,040 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,040 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,040 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,040 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,041 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,041 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,041 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,041 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,041 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,041 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,041 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,042 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,043 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,043 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,043 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,043 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,044 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,045 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,045 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,045 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,045 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,045 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,046 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:55:50,047 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:55:50,049 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:55:50,050 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:55:50,050 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 08:55:50,052 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 93 transitions, 198 flow [2022-01-18 08:55:50,304 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9412 states, 9397 states have (on average 3.1043950196871344) internal successors, (29172), 9411 states have internal predecessors, (29172), 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) [2022-01-18 08:55:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 9412 states, 9397 states have (on average 3.1043950196871344) internal successors, (29172), 9411 states have internal predecessors, (29172), 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) [2022-01-18 08:55:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-18 08:55:50,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:50,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:50,347 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:50,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:50,348 INFO L85 PathProgramCache]: Analyzing trace with hash -403506638, now seen corresponding path program 1 times [2022-01-18 08:55:50,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:50,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797717802] [2022-01-18 08:55:50,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:50,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:50,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:50,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:50,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797717802] [2022-01-18 08:55:50,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797717802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:50,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:50,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:55:50,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440262484] [2022-01-18 08:55:50,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:50,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 08:55:50,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 08:55:50,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 08:55:50,399 INFO L87 Difference]: Start difference. First operand has 9412 states, 9397 states have (on average 3.1043950196871344) internal successors, (29172), 9411 states have internal predecessors, (29172), 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) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-01-18 08:55:50,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:50,504 INFO L93 Difference]: Finished difference Result 8252 states and 24250 transitions. [2022-01-18 08:55:50,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 08:55:50,505 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2022-01-18 08:55:50,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:50,557 INFO L225 Difference]: With dead ends: 8252 [2022-01-18 08:55:50,557 INFO L226 Difference]: Without dead ends: 8007 [2022-01-18 08:55:50,558 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 08:55:50,559 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:50,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2022-01-18 08:55:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 8007. [2022-01-18 08:55:50,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8007 states, 7993 states have (on average 2.9419492055548604) internal successors, (23515), 8006 states have internal predecessors, (23515), 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) [2022-01-18 08:55:50,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8007 states to 8007 states and 23515 transitions. [2022-01-18 08:55:50,925 INFO L78 Accepts]: Start accepts. Automaton has 8007 states and 23515 transitions. Word has length 28 [2022-01-18 08:55:50,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:50,925 INFO L470 AbstractCegarLoop]: Abstraction has 8007 states and 23515 transitions. [2022-01-18 08:55:50,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-01-18 08:55:50,925 INFO L276 IsEmpty]: Start isEmpty. Operand 8007 states and 23515 transitions. [2022-01-18 08:55:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-18 08:55:50,931 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:50,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:50,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 08:55:50,932 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:50,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1667315025, now seen corresponding path program 1 times [2022-01-18 08:55:50,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:50,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771123191] [2022-01-18 08:55:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:50,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:50,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:50,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:50,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771123191] [2022-01-18 08:55:50,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771123191] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:50,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:50,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 08:55:50,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865844685] [2022-01-18 08:55:50,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:50,987 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:55:50,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:50,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:55:50,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:55:50,988 INFO L87 Difference]: Start difference. First operand 8007 states and 23515 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-01-18 08:55:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:51,092 INFO L93 Difference]: Finished difference Result 8397 states and 24024 transitions. [2022-01-18 08:55:51,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:55:51,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2022-01-18 08:55:51,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:51,123 INFO L225 Difference]: With dead ends: 8397 [2022-01-18 08:55:51,123 INFO L226 Difference]: Without dead ends: 6256 [2022-01-18 08:55:51,123 INFO L932 BasicCegarLoop]: 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 [2022-01-18 08:55:51,124 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 60 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:51,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 175 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:55:51,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6256 states. [2022-01-18 08:55:51,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6256 to 5784. [2022-01-18 08:55:51,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5774 states have (on average 2.853481122272255) internal successors, (16476), 5783 states have internal predecessors, (16476), 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) [2022-01-18 08:55:51,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 16476 transitions. [2022-01-18 08:55:51,367 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 16476 transitions. Word has length 30 [2022-01-18 08:55:51,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:51,368 INFO L470 AbstractCegarLoop]: Abstraction has 5784 states and 16476 transitions. [2022-01-18 08:55:51,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-01-18 08:55:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 16476 transitions. [2022-01-18 08:55:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:55:51,372 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:51,372 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:55:51,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 08:55:51,373 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:51,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:51,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1465341152, now seen corresponding path program 1 times [2022-01-18 08:55:51,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:51,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634659174] [2022-01-18 08:55:51,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:51,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:51,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:51,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:51,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634659174] [2022-01-18 08:55:51,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634659174] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:55:51,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271476130] [2022-01-18 08:55:51,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:51,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:55:51,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:55:51,515 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) [2022-01-18 08:55:51,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-18 08:55:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:51,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-18 08:55:51,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:55:51,903 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:55:51,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:51,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:55:52,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:52,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271476130] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:55:52,151 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:55:52,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2022-01-18 08:55:52,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200510112] [2022-01-18 08:55:52,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:55:52,152 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 08:55:52,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:52,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 08:55:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-18 08:55:52,153 INFO L87 Difference]: Start difference. First operand 5784 states and 16476 transitions. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:55:53,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:53,991 INFO L93 Difference]: Finished difference Result 11677 states and 31691 transitions. [2022-01-18 08:55:53,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-18 08:55:53,992 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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 46 [2022-01-18 08:55:53,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:54,081 INFO L225 Difference]: With dead ends: 11677 [2022-01-18 08:55:54,082 INFO L226 Difference]: Without dead ends: 10976 [2022-01-18 08:55:54,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 517 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=395, Invalid=1245, Unknown=0, NotChecked=0, Total=1640 [2022-01-18 08:55:54,083 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 1182 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:54,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 2238 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-18 08:55:54,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10976 states. [2022-01-18 08:55:54,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10976 to 5911. [2022-01-18 08:55:54,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5911 states, 5901 states have (on average 2.8293509574648366) internal successors, (16696), 5910 states have internal predecessors, (16696), 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) [2022-01-18 08:55:54,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5911 states to 5911 states and 16696 transitions. [2022-01-18 08:55:54,274 INFO L78 Accepts]: Start accepts. Automaton has 5911 states and 16696 transitions. Word has length 46 [2022-01-18 08:55:54,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:54,276 INFO L470 AbstractCegarLoop]: Abstraction has 5911 states and 16696 transitions. [2022-01-18 08:55:54,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:55:54,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5911 states and 16696 transitions. [2022-01-18 08:55:54,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:55:54,279 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:54,279 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:54,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-18 08:55:54,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:55:54,494 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:54,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:54,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1351616862, now seen corresponding path program 1 times [2022-01-18 08:55:54,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:54,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589774041] [2022-01-18 08:55:54,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:54,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:54,602 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:54,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:54,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589774041] [2022-01-18 08:55:54,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589774041] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:55:54,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248397312] [2022-01-18 08:55:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:54,603 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:55:54,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:55:54,604 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) [2022-01-18 08:55:54,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-18 08:55:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:54,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-18 08:55:54,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:55:54,907 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:55:54,937 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:54,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:55:55,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:55,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248397312] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:55:55,092 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:55:55,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2022-01-18 08:55:55,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868784886] [2022-01-18 08:55:55,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:55:55,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 08:55:55,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:55,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 08:55:55,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-18 08:55:55,093 INFO L87 Difference]: Start difference. First operand 5911 states and 16696 transitions. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:55:56,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:56,322 INFO L93 Difference]: Finished difference Result 9646 states and 26023 transitions. [2022-01-18 08:55:56,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-18 08:55:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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 46 [2022-01-18 08:55:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:56,347 INFO L225 Difference]: With dead ends: 9646 [2022-01-18 08:55:56,347 INFO L226 Difference]: Without dead ends: 8852 [2022-01-18 08:55:56,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=360, Invalid=1122, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 08:55:56,348 INFO L933 BasicCegarLoop]: 414 mSDtfsCounter, 1064 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:56,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1064 Valid, 3228 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-18 08:55:56,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8852 states. [2022-01-18 08:55:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8852 to 5121. [2022-01-18 08:55:56,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5114 states have (on average 2.789792725850606) internal successors, (14267), 5120 states have internal predecessors, (14267), 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) [2022-01-18 08:55:56,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 14267 transitions. [2022-01-18 08:55:56,488 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 14267 transitions. Word has length 46 [2022-01-18 08:55:56,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:56,489 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 14267 transitions. [2022-01-18 08:55:56,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:55:56,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 14267 transitions. [2022-01-18 08:55:56,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:55:56,492 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:56,492 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:55:56,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-18 08:55:56,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-01-18 08:55:56,712 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:56,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1655538400, now seen corresponding path program 2 times [2022-01-18 08:55:56,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:56,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420808786] [2022-01-18 08:55:56,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:56,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 08:55:56,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:56,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420808786] [2022-01-18 08:55:56,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420808786] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:55:56,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:55:56,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:55:56,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264313979] [2022-01-18 08:55:56,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:55:56,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:55:56,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:56,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:55:56,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:55:56,814 INFO L87 Difference]: Start difference. First operand 5121 states and 14267 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:55:56,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:55:56,932 INFO L93 Difference]: Finished difference Result 3992 states and 10975 transitions. [2022-01-18 08:55:56,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:55:56,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 46 [2022-01-18 08:55:56,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:55:56,943 INFO L225 Difference]: With dead ends: 3992 [2022-01-18 08:55:56,943 INFO L226 Difference]: Without dead ends: 3902 [2022-01-18 08:55:56,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:55:56,944 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 182 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:55:56,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 380 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:55:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2022-01-18 08:55:56,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3902. [2022-01-18 08:55:57,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3902 states, 3897 states have (on average 2.763407749550937) internal successors, (10769), 3901 states have internal predecessors, (10769), 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) [2022-01-18 08:55:57,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3902 states to 3902 states and 10769 transitions. [2022-01-18 08:55:57,010 INFO L78 Accepts]: Start accepts. Automaton has 3902 states and 10769 transitions. Word has length 46 [2022-01-18 08:55:57,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:55:57,011 INFO L470 AbstractCegarLoop]: Abstraction has 3902 states and 10769 transitions. [2022-01-18 08:55:57,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:55:57,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3902 states and 10769 transitions. [2022-01-18 08:55:57,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:55:57,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:55:57,015 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:55:57,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 08:55:57,015 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:55:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:55:57,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1070019890, now seen corresponding path program 2 times [2022-01-18 08:55:57,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:55:57,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396446769] [2022-01-18 08:55:57,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:55:57,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:55:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:55:57,191 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:57,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:55:57,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396446769] [2022-01-18 08:55:57,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396446769] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:55:57,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935071659] [2022-01-18 08:55:57,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 08:55:57,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:55:57,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:55:57,196 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) [2022-01-18 08:55:57,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-18 08:55:57,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 08:55:57,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:55:57,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-18 08:55:57,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:55:57,325 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:55:57,393 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 08:55:57,393 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 08:55:57,565 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:55:57,565 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:55:57,617 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 08:55:57,744 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 08:55:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:55:57,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:55:57,816 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_159 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_159) |c_thr1Thread2of2ForFork0_~#l~0#1.base|) |c_thr1Thread2of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:55:57,860 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:55:57,861 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:55:57,864 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:55:57,868 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:55:58,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:55:58,600 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-01-18 08:55:58,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935071659] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:55:58,600 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:55:58,600 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 24 [2022-01-18 08:55:58,600 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366431152] [2022-01-18 08:55:58,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:55:58,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 08:55:58,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:55:58,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 08:55:58,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=401, Unknown=1, NotChecked=42, Total=552 [2022-01-18 08:55:58,602 INFO L87 Difference]: Start difference. First operand 3902 states and 10769 transitions. Second operand has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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) [2022-01-18 08:56:01,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:01,385 INFO L93 Difference]: Finished difference Result 5823 states and 16498 transitions. [2022-01-18 08:56:01,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-18 08:56:01,385 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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 54 [2022-01-18 08:56:01,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:01,402 INFO L225 Difference]: With dead ends: 5823 [2022-01-18 08:56:01,402 INFO L226 Difference]: Without dead ends: 5799 [2022-01-18 08:56:01,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 100 SyntacticMatches, 11 SemanticMatches, 72 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 2066 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=935, Invalid=4324, Unknown=1, NotChecked=142, Total=5402 [2022-01-18 08:56:01,405 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 1091 mSDsluCounter, 2794 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1342 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:01,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1091 Valid, 3077 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1064 Invalid, 0 Unknown, 1342 Unchecked, 0.8s Time] [2022-01-18 08:56:01,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5799 states. [2022-01-18 08:56:01,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5799 to 3956. [2022-01-18 08:56:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3951 states have (on average 2.768666160465705) internal successors, (10939), 3955 states have internal predecessors, (10939), 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) [2022-01-18 08:56:01,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 10939 transitions. [2022-01-18 08:56:01,485 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 10939 transitions. Word has length 54 [2022-01-18 08:56:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:01,485 INFO L470 AbstractCegarLoop]: Abstraction has 3956 states and 10939 transitions. [2022-01-18 08:56:01,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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) [2022-01-18 08:56:01,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 10939 transitions. [2022-01-18 08:56:01,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:56:01,489 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:01,489 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:01,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:01,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:01,703 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:01,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1175337508, now seen corresponding path program 3 times [2022-01-18 08:56:01,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:01,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879083269] [2022-01-18 08:56:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:01,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:01,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:01,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879083269] [2022-01-18 08:56:01,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879083269] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:01,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98298258] [2022-01-18 08:56:01,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 08:56:01,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:01,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:01,908 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) [2022-01-18 08:56:01,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-18 08:56:01,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 08:56:01,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:01,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-18 08:56:01,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:02,031 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:02,096 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 08:56:02,096 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 08:56:02,284 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:02,285 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:02,319 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:02,448 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 08:56:02,481 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:02,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:02,512 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_196 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_196) |c_thr1Thread2of2ForFork0_~#l~0#1.base|) |c_thr1Thread2of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:56:02,566 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:56:02,566 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:56:02,569 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:56:02,577 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:03,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-01-18 08:56:03,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98298258] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:03,244 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:03,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 26 [2022-01-18 08:56:03,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701280145] [2022-01-18 08:56:03,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:03,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 08:56:03,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:03,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 08:56:03,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=473, Unknown=1, NotChecked=46, Total=650 [2022-01-18 08:56:03,245 INFO L87 Difference]: Start difference. First operand 3956 states and 10939 transitions. Second operand has 26 states, 26 states have (on average 4.769230769230769) internal successors, (124), 26 states have internal predecessors, (124), 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) [2022-01-18 08:56:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:04,991 INFO L93 Difference]: Finished difference Result 5483 states and 15035 transitions. [2022-01-18 08:56:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-18 08:56:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.769230769230769) internal successors, (124), 26 states have internal predecessors, (124), 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 54 [2022-01-18 08:56:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:05,004 INFO L225 Difference]: With dead ends: 5483 [2022-01-18 08:56:05,005 INFO L226 Difference]: Without dead ends: 5461 [2022-01-18 08:56:05,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 97 SyntacticMatches, 15 SemanticMatches, 64 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1762 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=742, Invalid=3415, Unknown=7, NotChecked=126, Total=4290 [2022-01-18 08:56:05,007 INFO L933 BasicCegarLoop]: 321 mSDtfsCounter, 1158 mSDsluCounter, 2889 mSDsCounter, 0 mSdLazyCounter, 1196 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1486 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:05,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 3184 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1196 Invalid, 0 Unknown, 1486 Unchecked, 0.7s Time] [2022-01-18 08:56:05,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5461 states. [2022-01-18 08:56:05,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5461 to 3984. [2022-01-18 08:56:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 3979 states have (on average 2.7697914048755967) internal successors, (11021), 3983 states have internal predecessors, (11021), 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) [2022-01-18 08:56:05,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 11021 transitions. [2022-01-18 08:56:05,082 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 11021 transitions. Word has length 54 [2022-01-18 08:56:05,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:05,082 INFO L470 AbstractCegarLoop]: Abstraction has 3984 states and 11021 transitions. [2022-01-18 08:56:05,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.769230769230769) internal successors, (124), 26 states have internal predecessors, (124), 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) [2022-01-18 08:56:05,083 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 11021 transitions. [2022-01-18 08:56:05,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:56:05,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:05,087 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:05,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:05,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:05,304 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:05,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:05,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1388030514, now seen corresponding path program 1 times [2022-01-18 08:56:05,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:05,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139922361] [2022-01-18 08:56:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:05,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:05,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:05,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139922361] [2022-01-18 08:56:05,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139922361] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:05,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575584267] [2022-01-18 08:56:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:05,445 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:05,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:05,446 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) [2022-01-18 08:56:05,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-18 08:56:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:05,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-18 08:56:05,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:05,567 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:05,630 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:05,630 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:05,753 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:05,862 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:56:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:05,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:05,906 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_232 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_232) |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:56:05,960 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:56:05,961 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:56:05,962 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:56:05,971 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:06,206 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:06,243 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-01-18 08:56:06,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575584267] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:06,243 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:06,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 23 [2022-01-18 08:56:06,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515294510] [2022-01-18 08:56:06,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:06,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 08:56:06,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:06,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 08:56:06,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=362, Unknown=1, NotChecked=40, Total=506 [2022-01-18 08:56:06,244 INFO L87 Difference]: Start difference. First operand 3984 states and 11021 transitions. Second operand has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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) [2022-01-18 08:56:08,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:08,289 INFO L93 Difference]: Finished difference Result 7914 states and 21639 transitions. [2022-01-18 08:56:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 08:56:08,289 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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 54 [2022-01-18 08:56:08,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:08,306 INFO L225 Difference]: With dead ends: 7914 [2022-01-18 08:56:08,306 INFO L226 Difference]: Without dead ends: 7513 [2022-01-18 08:56:08,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 102 SyntacticMatches, 17 SemanticMatches, 65 ConstructedPredicates, 1 IntricatePredicates, 4 DeprecatedPredicates, 2036 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=881, Invalid=3403, Unknown=10, NotChecked=128, Total=4422 [2022-01-18 08:56:08,308 INFO L933 BasicCegarLoop]: 391 mSDtfsCounter, 1179 mSDsluCounter, 4405 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1179 SdHoareTripleChecker+Valid, 4750 SdHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1099 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:08,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1179 Valid, 4750 Invalid, 2553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1327 Invalid, 0 Unknown, 1099 Unchecked, 0.9s Time] [2022-01-18 08:56:08,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7513 states. [2022-01-18 08:56:08,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7513 to 4484. [2022-01-18 08:56:08,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4484 states, 4479 states have (on average 2.7327528466175486) internal successors, (12240), 4483 states have internal predecessors, (12240), 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) [2022-01-18 08:56:08,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4484 states to 4484 states and 12240 transitions. [2022-01-18 08:56:08,402 INFO L78 Accepts]: Start accepts. Automaton has 4484 states and 12240 transitions. Word has length 54 [2022-01-18 08:56:08,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:08,402 INFO L470 AbstractCegarLoop]: Abstraction has 4484 states and 12240 transitions. [2022-01-18 08:56:08,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.391304347826087) internal successors, (124), 23 states have internal predecessors, (124), 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) [2022-01-18 08:56:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 4484 states and 12240 transitions. [2022-01-18 08:56:08,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:56:08,407 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:08,407 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:08,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:08,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-01-18 08:56:08,616 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:08,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash -165080656, now seen corresponding path program 4 times [2022-01-18 08:56:08,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:08,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115295165] [2022-01-18 08:56:08,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:08,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:08,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:08,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115295165] [2022-01-18 08:56:08,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115295165] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:08,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672561336] [2022-01-18 08:56:08,769 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 08:56:08,769 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:08,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:08,770 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:08,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-18 08:56:08,853 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 08:56:08,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:08,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-18 08:56:08,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:08,895 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:08,956 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 08:56:08,958 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 08:56:09,021 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:09,022 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:09,063 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:09,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:56:09,192 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:56:09,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:09,218 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_269 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_269) |c_thr1Thread2of2ForFork0_~#l~0#1.base|) |c_thr1Thread2of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:56:09,272 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:56:09,272 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:56:09,275 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:56:09,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:09,742 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 14 not checked. [2022-01-18 08:56:09,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1672561336] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:09,810 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:09,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 24 [2022-01-18 08:56:09,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208633024] [2022-01-18 08:56:09,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:09,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 08:56:09,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:09,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 08:56:09,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=400, Unknown=1, NotChecked=42, Total=552 [2022-01-18 08:56:09,813 INFO L87 Difference]: Start difference. First operand 4484 states and 12240 transitions. Second operand has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 24 states have internal predecessors, (112), 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) [2022-01-18 08:56:11,341 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_269 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_269) |c_thr1Thread2of2ForFork0_~#l~0#1.base|) |c_thr1Thread2of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) (= c_~s~0 0)) is different from false [2022-01-18 08:56:11,650 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_269 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_269) |c_thr1Thread2of2ForFork0_~#l~0#1.base|) |c_thr1Thread2of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))))) (and .cse0 (or .cse0 (not (= (mod c_~c~0 4294967296) 1))))) is different from false [2022-01-18 08:56:11,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:11,979 INFO L93 Difference]: Finished difference Result 7345 states and 19989 transitions. [2022-01-18 08:56:11,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 08:56:11,980 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 24 states have internal predecessors, (112), 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 54 [2022-01-18 08:56:11,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:11,993 INFO L225 Difference]: With dead ends: 7345 [2022-01-18 08:56:11,994 INFO L226 Difference]: Without dead ends: 7216 [2022-01-18 08:56:11,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 101 SyntacticMatches, 10 SemanticMatches, 66 ConstructedPredicates, 3 IntricatePredicates, 2 DeprecatedPredicates, 1541 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=831, Invalid=3329, Unknown=12, NotChecked=384, Total=4556 [2022-01-18 08:56:11,996 INFO L933 BasicCegarLoop]: 404 mSDtfsCounter, 1195 mSDsluCounter, 3908 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 2922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1512 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:11,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 4292 Invalid, 2922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1287 Invalid, 0 Unknown, 1512 Unchecked, 0.8s Time] [2022-01-18 08:56:12,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7216 states. [2022-01-18 08:56:12,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7216 to 4448. [2022-01-18 08:56:12,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4448 states, 4443 states have (on average 2.7265361242403783) internal successors, (12114), 4447 states have internal predecessors, (12114), 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) [2022-01-18 08:56:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4448 states to 4448 states and 12114 transitions. [2022-01-18 08:56:12,093 INFO L78 Accepts]: Start accepts. Automaton has 4448 states and 12114 transitions. Word has length 54 [2022-01-18 08:56:12,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:12,093 INFO L470 AbstractCegarLoop]: Abstraction has 4448 states and 12114 transitions. [2022-01-18 08:56:12,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.666666666666667) internal successors, (112), 24 states have internal predecessors, (112), 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) [2022-01-18 08:56:12,094 INFO L276 IsEmpty]: Start isEmpty. Operand 4448 states and 12114 transitions. [2022-01-18 08:56:12,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:56:12,098 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:12,099 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:12,124 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-18 08:56:12,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:12,321 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:12,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:12,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1949065436, now seen corresponding path program 2 times [2022-01-18 08:56:12,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:12,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221795317] [2022-01-18 08:56:12,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:12,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:56:12,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:12,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221795317] [2022-01-18 08:56:12,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221795317] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:12,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820222027] [2022-01-18 08:56:12,478 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 08:56:12,478 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:12,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:12,479 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:12,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-18 08:56:12,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 08:56:12,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:12,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-18 08:56:12,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:12,592 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:12,715 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 08:56:12,715 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 08:56:12,745 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:12,747 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:12,790 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 08:56:12,964 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 08:56:13,009 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:56:13,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:13,033 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_306 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_306) |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:56:13,094 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:56:13,094 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:56:13,096 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:56:13,103 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:13,539 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:13,605 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 14 not checked. [2022-01-18 08:56:13,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820222027] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:13,606 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:13,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 23 [2022-01-18 08:56:13,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802844912] [2022-01-18 08:56:13,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:13,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 08:56:13,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:13,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 08:56:13,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=365, Unknown=1, NotChecked=40, Total=506 [2022-01-18 08:56:13,607 INFO L87 Difference]: Start difference. First operand 4448 states and 12114 transitions. Second operand has 23 states, 23 states have (on average 4.434782608695652) internal successors, (102), 23 states have internal predecessors, (102), 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) [2022-01-18 08:56:15,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:15,438 INFO L93 Difference]: Finished difference Result 5947 states and 16160 transitions. [2022-01-18 08:56:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 08:56:15,438 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.434782608695652) internal successors, (102), 23 states have internal predecessors, (102), 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 54 [2022-01-18 08:56:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:15,446 INFO L225 Difference]: With dead ends: 5947 [2022-01-18 08:56:15,446 INFO L226 Difference]: Without dead ends: 5780 [2022-01-18 08:56:15,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 95 SyntacticMatches, 10 SemanticMatches, 53 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1029 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=528, Invalid=2334, Unknown=4, NotChecked=104, Total=2970 [2022-01-18 08:56:15,447 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 962 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1399 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:15,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 3352 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 1255 Invalid, 0 Unknown, 1399 Unchecked, 0.8s Time] [2022-01-18 08:56:15,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5780 states. [2022-01-18 08:56:15,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5780 to 4368. [2022-01-18 08:56:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4368 states, 4363 states have (on average 2.7089158835663536) internal successors, (11819), 4367 states have internal predecessors, (11819), 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) [2022-01-18 08:56:15,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4368 states to 4368 states and 11819 transitions. [2022-01-18 08:56:15,523 INFO L78 Accepts]: Start accepts. Automaton has 4368 states and 11819 transitions. Word has length 54 [2022-01-18 08:56:15,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:15,524 INFO L470 AbstractCegarLoop]: Abstraction has 4368 states and 11819 transitions. [2022-01-18 08:56:15,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.434782608695652) internal successors, (102), 23 states have internal predecessors, (102), 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) [2022-01-18 08:56:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 4368 states and 11819 transitions. [2022-01-18 08:56:15,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:56:15,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:15,529 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:15,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:15,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:15,751 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:15,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:15,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1463784444, now seen corresponding path program 1 times [2022-01-18 08:56:15,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:15,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290500219] [2022-01-18 08:56:15,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:15,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:15,920 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:15,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:15,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290500219] [2022-01-18 08:56:15,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290500219] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:15,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781196823] [2022-01-18 08:56:15,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:15,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:15,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:15,922 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:15,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-01-18 08:56:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:15,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-18 08:56:15,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:16,027 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:16,081 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 08:56:16,081 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 08:56:16,218 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:16,218 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:16,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 08:56:16,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 08:56:16,463 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:16,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:16,490 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_343 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_343) |c_thr1Thread2of2ForFork0_~#l~0#1.base|) |c_thr1Thread2of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:56:16,544 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:56:16,544 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:56:16,546 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:56:16,551 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:17,072 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:17,135 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-01-18 08:56:17,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781196823] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:17,136 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:17,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 26 [2022-01-18 08:56:17,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095853710] [2022-01-18 08:56:17,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:17,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 08:56:17,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:17,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 08:56:17,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=479, Unknown=1, NotChecked=46, Total=650 [2022-01-18 08:56:17,137 INFO L87 Difference]: Start difference. First operand 4368 states and 11819 transitions. Second operand has 26 states, 26 states have (on average 4.884615384615385) internal successors, (127), 26 states have internal predecessors, (127), 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) [2022-01-18 08:56:19,251 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_343 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_343) |c_thr1Thread2of2ForFork0_~#l~0#1.base|) |c_thr1Thread2of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) (= (mod c_~c~0 4294967296) 1)) is different from false [2022-01-18 08:56:19,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:19,494 INFO L93 Difference]: Finished difference Result 6051 states and 16368 transitions. [2022-01-18 08:56:19,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-01-18 08:56:19,495 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.884615384615385) internal successors, (127), 26 states have internal predecessors, (127), 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 55 [2022-01-18 08:56:19,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:19,502 INFO L225 Difference]: With dead ends: 6051 [2022-01-18 08:56:19,502 INFO L226 Difference]: Without dead ends: 5901 [2022-01-18 08:56:19,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 101 SyntacticMatches, 16 SemanticMatches, 76 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 2341 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1004, Invalid=4698, Unknown=6, NotChecked=298, Total=6006 [2022-01-18 08:56:19,505 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 1240 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 1031 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 2393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1205 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:19,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1240 Valid, 3074 Invalid, 2393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1031 Invalid, 0 Unknown, 1205 Unchecked, 0.7s Time] [2022-01-18 08:56:19,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5901 states. [2022-01-18 08:56:19,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5901 to 4222. [2022-01-18 08:56:19,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4222 states, 4217 states have (on average 2.7016836613706428) internal successors, (11393), 4221 states have internal predecessors, (11393), 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) [2022-01-18 08:56:19,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4222 states to 4222 states and 11393 transitions. [2022-01-18 08:56:19,588 INFO L78 Accepts]: Start accepts. Automaton has 4222 states and 11393 transitions. Word has length 55 [2022-01-18 08:56:19,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:19,588 INFO L470 AbstractCegarLoop]: Abstraction has 4222 states and 11393 transitions. [2022-01-18 08:56:19,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.884615384615385) internal successors, (127), 26 states have internal predecessors, (127), 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) [2022-01-18 08:56:19,589 INFO L276 IsEmpty]: Start isEmpty. Operand 4222 states and 11393 transitions. [2022-01-18 08:56:19,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:56:19,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:19,594 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:19,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:19,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-01-18 08:56:19,815 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:19,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:19,816 INFO L85 PathProgramCache]: Analyzing trace with hash -135786615, now seen corresponding path program 1 times [2022-01-18 08:56:19,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:19,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488115641] [2022-01-18 08:56:19,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:19,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:19,940 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:19,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:19,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488115641] [2022-01-18 08:56:19,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488115641] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:19,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213181831] [2022-01-18 08:56:19,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:19,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:19,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:19,942 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:19,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-01-18 08:56:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:20,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-18 08:56:20,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:20,095 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:20,142 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:20,143 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:20,243 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:20,344 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:56:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:20,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:20,385 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_379 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_379) |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:56:20,438 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:56:20,441 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:56:20,444 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:56:20,451 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:20,672 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:20,717 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2022-01-18 08:56:20,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213181831] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:20,718 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:20,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 23 [2022-01-18 08:56:20,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32359734] [2022-01-18 08:56:20,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:20,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 08:56:20,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:20,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 08:56:20,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=362, Unknown=1, NotChecked=40, Total=506 [2022-01-18 08:56:20,719 INFO L87 Difference]: Start difference. First operand 4222 states and 11393 transitions. Second operand has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 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) [2022-01-18 08:56:21,777 WARN L838 $PredicateComparison]: unable to prove that (and (= c_~s~0 0) (forall ((v_ArrVal_379 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_379) |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))))) is different from false [2022-01-18 08:56:21,877 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (= (mod c_~c~0 4294967296) 1))) (and (or (not .cse0) (forall ((v_ArrVal_379 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_379) |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))))) .cse0)) is different from false [2022-01-18 08:56:22,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:22,363 INFO L93 Difference]: Finished difference Result 7217 states and 19481 transitions. [2022-01-18 08:56:22,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 08:56:22,363 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 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 55 [2022-01-18 08:56:22,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:22,377 INFO L225 Difference]: With dead ends: 7217 [2022-01-18 08:56:22,377 INFO L226 Difference]: Without dead ends: 7131 [2022-01-18 08:56:22,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 107 SyntacticMatches, 11 SemanticMatches, 62 ConstructedPredicates, 3 IntricatePredicates, 4 DeprecatedPredicates, 1492 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=786, Invalid=2882, Unknown=4, NotChecked=360, Total=4032 [2022-01-18 08:56:22,378 INFO L933 BasicCegarLoop]: 314 mSDtfsCounter, 933 mSDsluCounter, 2934 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3210 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 770 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:22,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 3210 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1060 Invalid, 0 Unknown, 770 Unchecked, 0.7s Time] [2022-01-18 08:56:22,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7131 states. [2022-01-18 08:56:22,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7131 to 4067. [2022-01-18 08:56:22,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 4064 states have (on average 2.71998031496063) internal successors, (11054), 4066 states have internal predecessors, (11054), 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) [2022-01-18 08:56:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 11054 transitions. [2022-01-18 08:56:22,457 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 11054 transitions. Word has length 55 [2022-01-18 08:56:22,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:22,457 INFO L470 AbstractCegarLoop]: Abstraction has 4067 states and 11054 transitions. [2022-01-18 08:56:22,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.521739130434782) internal successors, (127), 23 states have internal predecessors, (127), 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) [2022-01-18 08:56:22,457 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 11054 transitions. [2022-01-18 08:56:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 08:56:22,462 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:22,462 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:22,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:22,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-01-18 08:56:22,683 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:22,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:22,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1503204202, now seen corresponding path program 1 times [2022-01-18 08:56:22,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:22,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675937762] [2022-01-18 08:56:22,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:22,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:22,842 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:22,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:22,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675937762] [2022-01-18 08:56:22,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675937762] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:22,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453197535] [2022-01-18 08:56:22,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:22,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:22,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:22,844 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:22,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-01-18 08:56:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:22,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 42 conjunts are in the unsatisfiable core [2022-01-18 08:56:22,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:23,000 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:23,097 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 08:56:23,097 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 08:56:23,135 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:23,258 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:23,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:23,279 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:56:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:23,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:23,322 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_420 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_420) |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:56:23,491 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:56:23,491 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:56:23,493 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:56:23,495 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-01-18 08:56:23,712 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:56:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:23,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453197535] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:23,764 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:23,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2022-01-18 08:56:23,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303395018] [2022-01-18 08:56:23,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:23,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 08:56:23,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:23,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 08:56:23,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=434, Unknown=1, NotChecked=44, Total=600 [2022-01-18 08:56:23,765 INFO L87 Difference]: Start difference. First operand 4067 states and 11054 transitions. Second operand has 25 states, 25 states have (on average 5.44) internal successors, (136), 25 states have internal predecessors, (136), 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) [2022-01-18 08:56:24,206 WARN L838 $PredicateComparison]: unable to prove that (and (= (select |c_#valid| |c_thr1Thread1of2ForFork0_~#l~0#1.base|) 1) (not (= (mod c_~s~0 4294967296) (mod (select (select |c_#memory_int| |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296))) (= c_~t~0 1) (= |c_thr1Thread1of2ForFork0_~#l~0#1.offset| 0) (= c_~s~0 0) (forall ((v_ArrVal_420 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_420) |c_thr1Thread1of2ForFork0_~#l~0#1.base|) |c_thr1Thread1of2ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))))) is different from false [2022-01-18 08:56:34,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:34,861 INFO L93 Difference]: Finished difference Result 4716 states and 12898 transitions. [2022-01-18 08:56:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 08:56:34,862 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 5.44) internal successors, (136), 25 states have internal predecessors, (136), 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 58 [2022-01-18 08:56:34,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:34,867 INFO L225 Difference]: With dead ends: 4716 [2022-01-18 08:56:34,867 INFO L226 Difference]: Without dead ends: 4692 [2022-01-18 08:56:34,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 103 SyntacticMatches, 14 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1127 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=629, Invalid=2436, Unknown=23, NotChecked=218, Total=3306 [2022-01-18 08:56:34,868 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 690 mSDsluCounter, 2254 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 2262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1443 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:34,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 2458 Invalid, 2262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 753 Invalid, 0 Unknown, 1443 Unchecked, 0.4s Time] [2022-01-18 08:56:34,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4692 states. [2022-01-18 08:56:34,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4692 to 3990. [2022-01-18 08:56:34,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 3987 states have (on average 2.7165788813644345) internal successors, (10831), 3989 states have internal predecessors, (10831), 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) [2022-01-18 08:56:34,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 10831 transitions. [2022-01-18 08:56:34,930 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 10831 transitions. Word has length 58 [2022-01-18 08:56:34,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:34,930 INFO L470 AbstractCegarLoop]: Abstraction has 3990 states and 10831 transitions. [2022-01-18 08:56:34,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 5.44) internal successors, (136), 25 states have internal predecessors, (136), 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) [2022-01-18 08:56:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 10831 transitions. [2022-01-18 08:56:34,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 08:56:34,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:34,936 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:34,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:35,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-01-18 08:56:35,158 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:35,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:35,159 INFO L85 PathProgramCache]: Analyzing trace with hash -194186022, now seen corresponding path program 2 times [2022-01-18 08:56:35,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:35,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277562998] [2022-01-18 08:56:35,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:35,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:56:35,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:35,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277562998] [2022-01-18 08:56:35,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277562998] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:35,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762422679] [2022-01-18 08:56:35,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 08:56:35,236 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:35,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:35,240 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:35,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-01-18 08:56:35,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-18 08:56:35,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:35,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 26 conjunts are in the unsatisfiable core [2022-01-18 08:56:35,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:35,426 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-01-18 08:56:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-18 08:56:35,453 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 08:56:35,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762422679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:56:35,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 08:56:35,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2022-01-18 08:56:35,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522837382] [2022-01-18 08:56:35,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:56:35,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:56:35,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:56:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:56:35,454 INFO L87 Difference]: Start difference. First operand 3990 states and 10831 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2022-01-18 08:56:35,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:35,528 INFO L93 Difference]: Finished difference Result 3617 states and 9736 transitions. [2022-01-18 08:56:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 08:56:35,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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 58 [2022-01-18 08:56:35,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:35,533 INFO L225 Difference]: With dead ends: 3617 [2022-01-18 08:56:35,533 INFO L226 Difference]: Without dead ends: 3532 [2022-01-18 08:56:35,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:56:35,534 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 79 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:35,534 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 280 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:56:35,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2022-01-18 08:56:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3471. [2022-01-18 08:56:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3471 states, 3468 states have (on average 2.6562860438292963) internal successors, (9212), 3470 states have internal predecessors, (9212), 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) [2022-01-18 08:56:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3471 states to 3471 states and 9212 transitions. [2022-01-18 08:56:35,578 INFO L78 Accepts]: Start accepts. Automaton has 3471 states and 9212 transitions. Word has length 58 [2022-01-18 08:56:35,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:35,579 INFO L470 AbstractCegarLoop]: Abstraction has 3471 states and 9212 transitions. [2022-01-18 08:56:35,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2022-01-18 08:56:35,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3471 states and 9212 transitions. [2022-01-18 08:56:35,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 08:56:35,583 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:35,584 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:35,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:35,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:35,799 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:35,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:35,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1215443455, now seen corresponding path program 1 times [2022-01-18 08:56:35,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:35,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696358305] [2022-01-18 08:56:35,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:35,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:35,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:35,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696358305] [2022-01-18 08:56:35,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696358305] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:35,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176473293] [2022-01-18 08:56:35,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:35,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:35,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:35,891 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:35,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-01-18 08:56:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:35,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 08:56:35,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:36,295 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:36,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 08:56:36,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176473293] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:36,514 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:36,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 18 [2022-01-18 08:56:36,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426799309] [2022-01-18 08:56:36,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:36,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-18 08:56:36,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:36,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-18 08:56:36,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2022-01-18 08:56:36,516 INFO L87 Difference]: Start difference. First operand 3471 states and 9212 transitions. Second operand has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 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) [2022-01-18 08:56:37,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:37,215 INFO L93 Difference]: Finished difference Result 5904 states and 14989 transitions. [2022-01-18 08:56:37,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-18 08:56:37,215 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 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 63 [2022-01-18 08:56:37,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:37,221 INFO L225 Difference]: With dead ends: 5904 [2022-01-18 08:56:37,221 INFO L226 Difference]: Without dead ends: 5104 [2022-01-18 08:56:37,221 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 114 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=232, Invalid=698, Unknown=0, NotChecked=0, Total=930 [2022-01-18 08:56:37,221 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 1006 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:37,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1006 Valid, 1719 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 08:56:37,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2022-01-18 08:56:37,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 2826. [2022-01-18 08:56:37,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2823 states have (on average 2.604321643641516) internal successors, (7352), 2825 states have internal predecessors, (7352), 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) [2022-01-18 08:56:37,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 7352 transitions. [2022-01-18 08:56:37,256 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 7352 transitions. Word has length 63 [2022-01-18 08:56:37,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:37,256 INFO L470 AbstractCegarLoop]: Abstraction has 2826 states and 7352 transitions. [2022-01-18 08:56:37,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.222222222222222) internal successors, (130), 18 states have internal predecessors, (130), 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) [2022-01-18 08:56:37,256 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 7352 transitions. [2022-01-18 08:56:37,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 08:56:37,259 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:37,259 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:37,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:37,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:37,460 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:37,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:37,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1592382335, now seen corresponding path program 2 times [2022-01-18 08:56:37,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:37,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882200416] [2022-01-18 08:56:37,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:37,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:37,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:37,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882200416] [2022-01-18 08:56:37,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882200416] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:37,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265959163] [2022-01-18 08:56:37,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 08:56:37,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:37,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:37,549 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:37,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-01-18 08:56:37,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 08:56:37,646 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:37,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 26 conjunts are in the unsatisfiable core [2022-01-18 08:56:37,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:37,848 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:37,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:38,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265959163] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:38,042 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:38,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 17 [2022-01-18 08:56:38,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464450439] [2022-01-18 08:56:38,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:38,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-18 08:56:38,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:38,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-18 08:56:38,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2022-01-18 08:56:38,043 INFO L87 Difference]: Start difference. First operand 2826 states and 7352 transitions. Second operand has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 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) [2022-01-18 08:56:39,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:39,807 INFO L93 Difference]: Finished difference Result 5778 states and 14562 transitions. [2022-01-18 08:56:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-18 08:56:39,808 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 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 63 [2022-01-18 08:56:39,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:39,814 INFO L225 Difference]: With dead ends: 5778 [2022-01-18 08:56:39,814 INFO L226 Difference]: Without dead ends: 5548 [2022-01-18 08:56:39,815 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=313, Invalid=1169, Unknown=0, NotChecked=0, Total=1482 [2022-01-18 08:56:39,815 INFO L933 BasicCegarLoop]: 222 mSDtfsCounter, 956 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:39,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 2455 Invalid, 780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 08:56:39,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2022-01-18 08:56:39,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 2706. [2022-01-18 08:56:39,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2703 states have (on average 2.529041805401406) internal successors, (6836), 2705 states have internal predecessors, (6836), 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) [2022-01-18 08:56:39,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 6836 transitions. [2022-01-18 08:56:39,856 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 6836 transitions. Word has length 63 [2022-01-18 08:56:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:39,856 INFO L470 AbstractCegarLoop]: Abstraction has 2706 states and 6836 transitions. [2022-01-18 08:56:39,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.117647058823529) internal successors, (121), 17 states have internal predecessors, (121), 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) [2022-01-18 08:56:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 6836 transitions. [2022-01-18 08:56:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 08:56:39,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:39,859 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:39,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-01-18 08:56:40,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-01-18 08:56:40,061 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:40,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:40,062 INFO L85 PathProgramCache]: Analyzing trace with hash 420087227, now seen corresponding path program 3 times [2022-01-18 08:56:40,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:40,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224595518] [2022-01-18 08:56:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:40,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:40,151 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 08:56:40,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:40,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224595518] [2022-01-18 08:56:40,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224595518] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:40,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324577215] [2022-01-18 08:56:40,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 08:56:40,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:40,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:40,153 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:40,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-01-18 08:56:40,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 08:56:40,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:40,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 39 conjunts are in the unsatisfiable core [2022-01-18 08:56:40,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:40,281 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:56:40,331 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:56:40,331 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:56:40,349 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-18 08:56:40,385 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-01-18 08:56:40,464 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:56:40,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 08:56:40,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324577215] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:56:40,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 08:56:40,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-01-18 08:56:40,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328438600] [2022-01-18 08:56:40,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:56:40,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:56:40,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:40,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:56:40,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-01-18 08:56:40,465 INFO L87 Difference]: Start difference. First operand 2706 states and 6836 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-01-18 08:56:40,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:40,653 INFO L93 Difference]: Finished difference Result 4166 states and 10609 transitions. [2022-01-18 08:56:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 08:56:40,654 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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 63 [2022-01-18 08:56:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:40,659 INFO L225 Difference]: With dead ends: 4166 [2022-01-18 08:56:40,659 INFO L226 Difference]: Without dead ends: 4157 [2022-01-18 08:56:40,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2022-01-18 08:56:40,660 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 218 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:40,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 683 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 253 Invalid, 0 Unknown, 115 Unchecked, 0.1s Time] [2022-01-18 08:56:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4157 states. [2022-01-18 08:56:40,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4157 to 2742. [2022-01-18 08:56:40,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2742 states, 2739 states have (on average 2.5271997079225996) internal successors, (6922), 2741 states have internal predecessors, (6922), 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) [2022-01-18 08:56:40,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2742 states to 2742 states and 6922 transitions. [2022-01-18 08:56:40,698 INFO L78 Accepts]: Start accepts. Automaton has 2742 states and 6922 transitions. Word has length 63 [2022-01-18 08:56:40,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:40,698 INFO L470 AbstractCegarLoop]: Abstraction has 2742 states and 6922 transitions. [2022-01-18 08:56:40,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 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) [2022-01-18 08:56:40,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2742 states and 6922 transitions. [2022-01-18 08:56:40,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 08:56:40,701 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:40,701 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:40,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:40,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:40,923 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:40,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:40,924 INFO L85 PathProgramCache]: Analyzing trace with hash 50290519, now seen corresponding path program 4 times [2022-01-18 08:56:40,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:40,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309746434] [2022-01-18 08:56:40,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:40,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 08:56:41,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:41,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309746434] [2022-01-18 08:56:41,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309746434] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:41,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603400319] [2022-01-18 08:56:41,020 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 08:56:41,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:41,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:41,021 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:41,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-01-18 08:56:41,120 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 08:56:41,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:41,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 08:56:41,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:41,400 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:41,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:41,601 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 08:56:41,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603400319] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:41,602 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:41,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 19 [2022-01-18 08:56:41,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604203887] [2022-01-18 08:56:41,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:41,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 08:56:41,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:41,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 08:56:41,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-01-18 08:56:41,603 INFO L87 Difference]: Start difference. First operand 2742 states and 6922 transitions. Second operand has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) [2022-01-18 08:56:42,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:42,332 INFO L93 Difference]: Finished difference Result 5521 states and 13594 transitions. [2022-01-18 08:56:42,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-01-18 08:56:42,332 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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 63 [2022-01-18 08:56:42,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:42,338 INFO L225 Difference]: With dead ends: 5521 [2022-01-18 08:56:42,338 INFO L226 Difference]: Without dead ends: 4887 [2022-01-18 08:56:42,338 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 366 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=294, Invalid=896, Unknown=0, NotChecked=0, Total=1190 [2022-01-18 08:56:42,339 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 1047 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:42,339 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 2157 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 08:56:42,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4887 states. [2022-01-18 08:56:42,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4887 to 2404. [2022-01-18 08:56:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 2401 states have (on average 2.4618908788005) internal successors, (5911), 2403 states have internal predecessors, (5911), 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) [2022-01-18 08:56:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 5911 transitions. [2022-01-18 08:56:42,369 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 5911 transitions. Word has length 63 [2022-01-18 08:56:42,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:42,369 INFO L470 AbstractCegarLoop]: Abstraction has 2404 states and 5911 transitions. [2022-01-18 08:56:42,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 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) [2022-01-18 08:56:42,369 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 5911 transitions. [2022-01-18 08:56:42,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 08:56:42,376 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:42,376 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:42,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:42,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:42,587 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:42,588 INFO L85 PathProgramCache]: Analyzing trace with hash -495442387, now seen corresponding path program 5 times [2022-01-18 08:56:42,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:42,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83450932] [2022-01-18 08:56:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:42,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 08:56:42,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:42,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83450932] [2022-01-18 08:56:42,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83450932] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:42,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843252241] [2022-01-18 08:56:42,672 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 08:56:42,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:42,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:42,673 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:42,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-01-18 08:56:42,766 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 08:56:42,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:56:42,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 08:56:42,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:43,035 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:43,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:43,239 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 08:56:43,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843252241] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:43,239 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:43,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 20 [2022-01-18 08:56:43,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710812367] [2022-01-18 08:56:43,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:43,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 08:56:43,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:43,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 08:56:43,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2022-01-18 08:56:43,240 INFO L87 Difference]: Start difference. First operand 2404 states and 5911 transitions. Second operand has 20 states, 20 states have (on average 6.25) internal successors, (125), 20 states have internal predecessors, (125), 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) [2022-01-18 08:56:44,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:44,873 INFO L93 Difference]: Finished difference Result 6228 states and 15184 transitions. [2022-01-18 08:56:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-18 08:56:44,873 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.25) internal successors, (125), 20 states have internal predecessors, (125), 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 63 [2022-01-18 08:56:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:44,879 INFO L225 Difference]: With dead ends: 6228 [2022-01-18 08:56:44,879 INFO L226 Difference]: Without dead ends: 5649 [2022-01-18 08:56:44,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 113 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=484, Invalid=1966, Unknown=0, NotChecked=0, Total=2450 [2022-01-18 08:56:44,880 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 1207 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1207 SdHoareTripleChecker+Valid, 2913 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:44,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1207 Valid, 2913 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 08:56:44,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5649 states. [2022-01-18 08:56:44,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5649 to 1960. [2022-01-18 08:56:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 1957 states have (on average 2.450689831374553) internal successors, (4796), 1959 states have internal predecessors, (4796), 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) [2022-01-18 08:56:44,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 4796 transitions. [2022-01-18 08:56:44,914 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 4796 transitions. Word has length 63 [2022-01-18 08:56:44,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:44,914 INFO L470 AbstractCegarLoop]: Abstraction has 1960 states and 4796 transitions. [2022-01-18 08:56:44,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.25) internal successors, (125), 20 states have internal predecessors, (125), 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) [2022-01-18 08:56:44,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 4796 transitions. [2022-01-18 08:56:44,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 08:56:44,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:44,916 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:44,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-01-18 08:56:45,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-01-18 08:56:45,117 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:56:45,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:45,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1833049956, now seen corresponding path program 1 times [2022-01-18 08:56:45,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:45,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833613622] [2022-01-18 08:56:45,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:45,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:56:45,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833613622] [2022-01-18 08:56:45,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833613622] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:56:45,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904675133] [2022-01-18 08:56:45,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:45,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:45,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:56:45,200 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:56:45,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-01-18 08:56:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:45,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 08:56:45,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:56:45,535 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:56:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:45,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:56:45,739 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:56:45,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904675133] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:56:45,739 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:56:45,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 21 [2022-01-18 08:56:45,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058496387] [2022-01-18 08:56:45,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:56:45,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-01-18 08:56:45,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:45,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-01-18 08:56:45,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2022-01-18 08:56:45,740 INFO L87 Difference]: Start difference. First operand 1960 states and 4796 transitions. Second operand has 21 states, 21 states have (on average 6.238095238095238) internal successors, (131), 21 states have internal predecessors, (131), 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) [2022-01-18 08:56:46,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:46,192 INFO L93 Difference]: Finished difference Result 1579 states and 3730 transitions. [2022-01-18 08:56:46,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-18 08:56:46,193 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.238095238095238) internal successors, (131), 21 states have internal predecessors, (131), 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 63 [2022-01-18 08:56:46,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:46,193 INFO L225 Difference]: With dead ends: 1579 [2022-01-18 08:56:46,193 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:56:46,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=642, Unknown=0, NotChecked=0, Total=812 [2022-01-18 08:56:46,194 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 576 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 485 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:46,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 1700 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 485 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-18 08:56:46,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:56:46,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:56:46,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-01-18 08:56:46,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:56:46,195 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2022-01-18 08:56:46,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:46,195 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:56:46,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.238095238095238) internal successors, (131), 21 states have internal predecessors, (131), 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) [2022-01-18 08:56:46,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:56:46,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:56:46,195 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 08:56:46,195 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-18 08:56:46,195 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-18 08:56:46,196 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-18 08:56:46,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-01-18 08:56:46,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:56:46,403 INFO L732 BasicCegarLoop]: Path program histogram: [5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2022-01-18 08:56:46,403 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-18 08:56:46,404 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:56:46,404 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:56:46,404 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:56:46,405 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 93 transitions, 198 flow [2022-01-18 08:56:46,449 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2727 states, 2723 states have (on average 2.961439588688946) internal successors, (8064), 2726 states have internal predecessors, (8064), 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) [2022-01-18 08:56:46,451 INFO L276 IsEmpty]: Start isEmpty. Operand has 2727 states, 2723 states have (on average 2.961439588688946) internal successors, (8064), 2726 states have internal predecessors, (8064), 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) [2022-01-18 08:56:46,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:56:46,455 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:46,455 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:46,455 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:56:46,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:46,456 INFO L85 PathProgramCache]: Analyzing trace with hash -767453885, now seen corresponding path program 1 times [2022-01-18 08:56:46,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:46,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997122039] [2022-01-18 08:56:46,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:46,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:56:46,463 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:56:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:56:46,473 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:56:46,473 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:56:46,473 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:56:46,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 08:56:46,473 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:56:46,474 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:56:46,474 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:56:46,474 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-18 08:56:46,486 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,486 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,486 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,486 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,486 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,486 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,487 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,488 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,489 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,490 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,491 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,492 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,492 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,492 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,493 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,494 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,495 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,496 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,497 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,498 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,499 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,500 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,501 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,502 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,503 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,504 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,504 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,504 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,504 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,504 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,504 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:56:46,504 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:56:46,505 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:56:46,505 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 08:56:46,505 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 08:56:46,507 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 109 places, 111 transitions, 243 flow [2022-01-18 08:56:50,031 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 160260 states, 160226 states have (on average 4.16514173729607) internal successors, (667364), 160259 states have internal predecessors, (667364), 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) [2022-01-18 08:56:50,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 160260 states, 160226 states have (on average 4.16514173729607) internal successors, (667364), 160259 states have internal predecessors, (667364), 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) [2022-01-18 08:56:50,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-18 08:56:50,237 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:50,237 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:50,237 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:56:50,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:50,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1301976178, now seen corresponding path program 1 times [2022-01-18 08:56:50,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:50,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32060194] [2022-01-18 08:56:50,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:50,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:50,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:50,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32060194] [2022-01-18 08:56:50,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32060194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:56:50,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:56:50,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-18 08:56:50,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088644868] [2022-01-18 08:56:50,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:56:50,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-18 08:56:50,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:50,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-18 08:56:50,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 08:56:50,506 INFO L87 Difference]: Start difference. First operand has 160260 states, 160226 states have (on average 4.16514173729607) internal successors, (667364), 160259 states have internal predecessors, (667364), 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) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-01-18 08:56:52,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:56:52,736 INFO L93 Difference]: Finished difference Result 130838 states and 514995 transitions. [2022-01-18 08:56:52,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-18 08:56:52,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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 28 [2022-01-18 08:56:52,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:56:53,613 INFO L225 Difference]: With dead ends: 130838 [2022-01-18 08:56:53,613 INFO L226 Difference]: Without dead ends: 129123 [2022-01-18 08:56:53,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-18 08:56:53,614 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:56:53,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:56:54,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129123 states. [2022-01-18 08:56:57,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129123 to 129123. [2022-01-18 08:56:57,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129123 states, 129090 states have (on average 3.9362847625687505) internal successors, (508135), 129122 states have internal predecessors, (508135), 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) [2022-01-18 08:56:58,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129123 states to 129123 states and 508135 transitions. [2022-01-18 08:56:58,582 INFO L78 Accepts]: Start accepts. Automaton has 129123 states and 508135 transitions. Word has length 28 [2022-01-18 08:56:58,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:56:58,582 INFO L470 AbstractCegarLoop]: Abstraction has 129123 states and 508135 transitions. [2022-01-18 08:56:58,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 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) [2022-01-18 08:56:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand 129123 states and 508135 transitions. [2022-01-18 08:56:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-01-18 08:56:58,582 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:56:58,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:56:58,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 08:56:58,583 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:56:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:56:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash 919134927, now seen corresponding path program 1 times [2022-01-18 08:56:58,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:56:58,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399320665] [2022-01-18 08:56:58,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:56:58,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:56:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:56:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:56:58,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:56:58,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399320665] [2022-01-18 08:56:58,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399320665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:56:58,606 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:56:58,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 08:56:58,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016038298] [2022-01-18 08:56:58,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:56:58,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:56:58,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:56:58,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:56:58,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:56:58,607 INFO L87 Difference]: Start difference. First operand 129123 states and 508135 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-01-18 08:57:00,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:57:00,246 INFO L93 Difference]: Finished difference Result 155975 states and 600558 transitions. [2022-01-18 08:57:00,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:57:00,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2022-01-18 08:57:00,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:57:00,886 INFO L225 Difference]: With dead ends: 155975 [2022-01-18 08:57:00,886 INFO L226 Difference]: Without dead ends: 138210 [2022-01-18 08:57:00,886 INFO L932 BasicCegarLoop]: 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 [2022-01-18 08:57:00,887 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 73 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:57:00,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 200 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:57:01,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138210 states. [2022-01-18 08:57:04,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138210 to 122348. [2022-01-18 08:57:04,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122348 states, 122320 states have (on average 3.861355461085677) internal successors, (472321), 122347 states have internal predecessors, (472321), 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) [2022-01-18 08:57:05,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122348 states to 122348 states and 472321 transitions. [2022-01-18 08:57:05,726 INFO L78 Accepts]: Start accepts. Automaton has 122348 states and 472321 transitions. Word has length 30 [2022-01-18 08:57:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:57:05,726 INFO L470 AbstractCegarLoop]: Abstraction has 122348 states and 472321 transitions. [2022-01-18 08:57:05,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2022-01-18 08:57:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand 122348 states and 472321 transitions. [2022-01-18 08:57:05,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:57:05,729 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:57:05,729 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:57:05,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 08:57:05,730 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:57:05,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:57:05,730 INFO L85 PathProgramCache]: Analyzing trace with hash 317257935, now seen corresponding path program 1 times [2022-01-18 08:57:05,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:57:05,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074021273] [2022-01-18 08:57:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:57:05,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:57:05,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:57:05,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:05,788 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:57:05,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074021273] [2022-01-18 08:57:05,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074021273] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:57:05,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48522277] [2022-01-18 08:57:05,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:57:05,788 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:57:05,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:57:05,792 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:57:05,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-01-18 08:57:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:57:05,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-18 08:57:05,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:57:06,062 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:57:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:06,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:57:06,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:06,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48522277] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:57:06,198 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:57:06,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2022-01-18 08:57:06,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629891585] [2022-01-18 08:57:06,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:57:06,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 08:57:06,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:57:06,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 08:57:06,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-18 08:57:06,199 INFO L87 Difference]: Start difference. First operand 122348 states and 472321 transitions. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:57:10,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:57:10,523 INFO L93 Difference]: Finished difference Result 369776 states and 1378731 transitions. [2022-01-18 08:57:10,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 08:57:10,524 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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 46 [2022-01-18 08:57:10,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:57:13,442 INFO L225 Difference]: With dead ends: 369776 [2022-01-18 08:57:13,442 INFO L226 Difference]: Without dead ends: 364285 [2022-01-18 08:57:13,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1439, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 08:57:13,443 INFO L933 BasicCegarLoop]: 416 mSDtfsCounter, 1617 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 1322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 08:57:13,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1617 Valid, 2580 Invalid, 1322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-18 08:57:14,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364285 states. [2022-01-18 08:57:20,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364285 to 146152. [2022-01-18 08:57:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146152 states, 146124 states have (on average 3.875325066381977) internal successors, (566278), 146151 states have internal predecessors, (566278), 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) [2022-01-18 08:57:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146152 states to 146152 states and 566278 transitions. [2022-01-18 08:57:22,005 INFO L78 Accepts]: Start accepts. Automaton has 146152 states and 566278 transitions. Word has length 46 [2022-01-18 08:57:22,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:57:22,005 INFO L470 AbstractCegarLoop]: Abstraction has 146152 states and 566278 transitions. [2022-01-18 08:57:22,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:57:22,006 INFO L276 IsEmpty]: Start isEmpty. Operand 146152 states and 566278 transitions. [2022-01-18 08:57:22,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:57:22,009 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:57:22,009 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:57:22,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-01-18 08:57:22,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-01-18 08:57:22,232 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:57:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:57:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash -216252996, now seen corresponding path program 1 times [2022-01-18 08:57:22,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:57:22,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958272873] [2022-01-18 08:57:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:57:22,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:57:22,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:57:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:22,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:57:22,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958272873] [2022-01-18 08:57:22,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958272873] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:57:22,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651842941] [2022-01-18 08:57:22,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:57:22,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:57:22,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:57:22,294 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:57:22,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-01-18 08:57:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:57:22,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-18 08:57:22,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:57:22,535 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:57:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:22,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:57:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:22,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651842941] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:57:22,668 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:57:22,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2022-01-18 08:57:22,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876024902] [2022-01-18 08:57:22,668 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:57:22,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 08:57:22,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:57:22,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 08:57:22,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-18 08:57:22,670 INFO L87 Difference]: Start difference. First operand 146152 states and 566278 transitions. Second operand has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:57:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:57:27,460 INFO L93 Difference]: Finished difference Result 352237 states and 1311659 transitions. [2022-01-18 08:57:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-18 08:57:27,461 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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 46 [2022-01-18 08:57:27,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:57:30,115 INFO L225 Difference]: With dead ends: 352237 [2022-01-18 08:57:30,115 INFO L226 Difference]: Without dead ends: 345555 [2022-01-18 08:57:30,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=453, Invalid=1439, Unknown=0, NotChecked=0, Total=1892 [2022-01-18 08:57:30,116 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1966 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 4248 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:57:30,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1966 Valid, 4248 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 08:57:30,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345555 states. [2022-01-18 08:57:36,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345555 to 152870. [2022-01-18 08:57:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152870 states, 152849 states have (on average 3.8697538093150756) internal successors, (591488), 152869 states have internal predecessors, (591488), 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) [2022-01-18 08:57:37,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152870 states to 152870 states and 591488 transitions. [2022-01-18 08:57:37,887 INFO L78 Accepts]: Start accepts. Automaton has 152870 states and 591488 transitions. Word has length 46 [2022-01-18 08:57:37,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:57:37,887 INFO L470 AbstractCegarLoop]: Abstraction has 152870 states and 591488 transitions. [2022-01-18 08:57:37,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.8) internal successors, (87), 15 states have internal predecessors, (87), 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) [2022-01-18 08:57:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 152870 states and 591488 transitions. [2022-01-18 08:57:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-18 08:57:37,890 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:57:37,890 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:57:37,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-01-18 08:57:38,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:57:38,091 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:57:38,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:57:38,091 INFO L85 PathProgramCache]: Analyzing trace with hash -465816787, now seen corresponding path program 2 times [2022-01-18 08:57:38,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:57:38,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782371597] [2022-01-18 08:57:38,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:57:38,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:57:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:57:38,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-18 08:57:38,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:57:38,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782371597] [2022-01-18 08:57:38,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782371597] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:57:38,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:57:38,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:57:38,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091255402] [2022-01-18 08:57:38,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:57:38,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:57:38,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:57:38,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:57:38,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:57:38,155 INFO L87 Difference]: Start difference. First operand 152870 states and 591488 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:57:40,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:57:40,193 INFO L93 Difference]: Finished difference Result 150826 states and 584388 transitions. [2022-01-18 08:57:40,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:57:40,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 46 [2022-01-18 08:57:40,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:57:40,877 INFO L225 Difference]: With dead ends: 150826 [2022-01-18 08:57:40,878 INFO L226 Difference]: Without dead ends: 150786 [2022-01-18 08:57:40,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:57:40,878 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 231 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:57:40,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [231 Valid, 423 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:57:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150786 states. [2022-01-18 08:57:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150786 to 150786. [2022-01-18 08:57:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150786 states, 150767 states have (on average 3.8756292822699927) internal successors, (584317), 150785 states have internal predecessors, (584317), 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) [2022-01-18 08:57:46,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150786 states to 150786 states and 584317 transitions. [2022-01-18 08:57:46,771 INFO L78 Accepts]: Start accepts. Automaton has 150786 states and 584317 transitions. Word has length 46 [2022-01-18 08:57:46,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:57:46,771 INFO L470 AbstractCegarLoop]: Abstraction has 150786 states and 584317 transitions. [2022-01-18 08:57:46,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2022-01-18 08:57:46,771 INFO L276 IsEmpty]: Start isEmpty. Operand 150786 states and 584317 transitions. [2022-01-18 08:57:46,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:57:46,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:57:46,811 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:57:46,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 08:57:46,812 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:57:46,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:57:46,813 INFO L85 PathProgramCache]: Analyzing trace with hash -666332400, now seen corresponding path program 2 times [2022-01-18 08:57:46,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:57:46,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940393598] [2022-01-18 08:57:46,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:57:46,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:57:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:57:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:47,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:57:47,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940393598] [2022-01-18 08:57:47,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940393598] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:57:47,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346794507] [2022-01-18 08:57:47,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 08:57:47,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:57:47,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:57:47,021 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:57:47,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-01-18 08:57:47,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 08:57:47,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:57:47,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 47 conjunts are in the unsatisfiable core [2022-01-18 08:57:47,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:57:47,164 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:57:47,222 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 08:57:47,223 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 08:57:47,342 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:57:47,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:57:47,370 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-18 08:57:47,456 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 08:57:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:57:47,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:57:47,501 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_814 (Array Int Int))) (not (= (mod c_~s~0 4294967296) (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_814) |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296)))) is different from false [2022-01-18 08:57:47,526 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:57:47,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:57:47,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:57:47,533 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:57:47,981 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:57:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-01-18 08:57:48,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346794507] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:57:48,031 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:57:48,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-01-18 08:57:48,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829388975] [2022-01-18 08:57:48,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:57:48,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 08:57:48,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:57:48,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 08:57:48,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=401, Unknown=1, NotChecked=42, Total=552 [2022-01-18 08:57:48,032 INFO L87 Difference]: Start difference. First operand 150786 states and 584317 transitions. Second operand has 24 states, 24 states have (on average 4.708333333333333) internal successors, (113), 24 states have internal predecessors, (113), 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) [2022-01-18 08:57:52,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:57:52,124 INFO L93 Difference]: Finished difference Result 215307 states and 832574 transitions. [2022-01-18 08:57:52,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-01-18 08:57:52,124 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.708333333333333) internal successors, (113), 24 states have internal predecessors, (113), 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 54 [2022-01-18 08:57:52,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:57:53,978 INFO L225 Difference]: With dead ends: 215307 [2022-01-18 08:57:53,978 INFO L226 Difference]: Without dead ends: 215307 [2022-01-18 08:57:53,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 97 SyntacticMatches, 11 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1093 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=554, Invalid=2529, Unknown=1, NotChecked=108, Total=3192 [2022-01-18 08:57:53,980 INFO L933 BasicCegarLoop]: 497 mSDtfsCounter, 1450 mSDsluCounter, 4838 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 5187 SdHoareTripleChecker+Invalid, 4420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2218 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:57:53,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 5187 Invalid, 4420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 2038 Invalid, 0 Unknown, 2218 Unchecked, 1.2s Time] [2022-01-18 08:57:54,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215307 states. [2022-01-18 08:57:58,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215307 to 151876. [2022-01-18 08:57:59,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151876 states, 151857 states have (on average 3.87856997043271) internal successors, (588988), 151875 states have internal predecessors, (588988), 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) [2022-01-18 08:57:59,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151876 states to 151876 states and 588988 transitions. [2022-01-18 08:57:59,891 INFO L78 Accepts]: Start accepts. Automaton has 151876 states and 588988 transitions. Word has length 54 [2022-01-18 08:57:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:57:59,891 INFO L470 AbstractCegarLoop]: Abstraction has 151876 states and 588988 transitions. [2022-01-18 08:57:59,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.708333333333333) internal successors, (113), 24 states have internal predecessors, (113), 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) [2022-01-18 08:57:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 151876 states and 588988 transitions. [2022-01-18 08:57:59,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:57:59,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:57:59,906 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:57:59,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-01-18 08:58:00,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-01-18 08:58:00,106 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:58:00,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:58:00,107 INFO L85 PathProgramCache]: Analyzing trace with hash -264137710, now seen corresponding path program 3 times [2022-01-18 08:58:00,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:58:00,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166652930] [2022-01-18 08:58:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:58:00,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:58:00,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:58:00,241 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:58:00,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:58:00,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166652930] [2022-01-18 08:58:00,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166652930] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:58:00,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333924018] [2022-01-18 08:58:00,241 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 08:58:00,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:58:00,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:58:00,244 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:58:00,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-01-18 08:58:00,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-18 08:58:00,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:58:00,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 38 conjunts are in the unsatisfiable core [2022-01-18 08:58:00,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:58:00,398 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:58:00,451 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 08:58:00,451 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 08:58:00,526 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:58:00,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:58:00,572 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:58:00,699 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:58:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:58:00,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:58:00,745 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_851 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_851) |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |c_thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:58:00,786 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:58:00,786 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:58:00,787 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:58:00,790 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:58:01,058 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:58:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 14 not checked. [2022-01-18 08:58:01,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333924018] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:58:01,093 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:58:01,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 23 [2022-01-18 08:58:01,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507808380] [2022-01-18 08:58:01,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:58:01,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 08:58:01,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:58:01,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 08:58:01,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=362, Unknown=1, NotChecked=40, Total=506 [2022-01-18 08:58:01,095 INFO L87 Difference]: Start difference. First operand 151876 states and 588988 transitions. Second operand has 23 states, 23 states have (on average 4.391304347826087) internal successors, (101), 23 states have internal predecessors, (101), 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) [2022-01-18 08:58:07,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:58:07,701 INFO L93 Difference]: Finished difference Result 313826 states and 1197353 transitions. [2022-01-18 08:58:07,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-18 08:58:07,702 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.391304347826087) internal successors, (101), 23 states have internal predecessors, (101), 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 54 [2022-01-18 08:58:07,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:58:10,255 INFO L225 Difference]: With dead ends: 313826 [2022-01-18 08:58:10,256 INFO L226 Difference]: Without dead ends: 313086 [2022-01-18 08:58:10,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 97 SyntacticMatches, 24 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1606 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=557, Invalid=2415, Unknown=2, NotChecked=106, Total=3080 [2022-01-18 08:58:10,256 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1672 mSDsluCounter, 5085 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 5418 SdHoareTripleChecker+Invalid, 3122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1052 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 08:58:10,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1672 Valid, 5418 Invalid, 3122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1907 Invalid, 0 Unknown, 1052 Unchecked, 1.3s Time] [2022-01-18 08:58:11,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313086 states. [2022-01-18 08:58:16,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313086 to 156781. [2022-01-18 08:58:17,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156781 states, 156762 states have (on average 3.8895842104591676) internal successors, (609739), 156780 states have internal predecessors, (609739), 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) [2022-01-18 08:58:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156781 states to 156781 states and 609739 transitions. [2022-01-18 08:58:17,696 INFO L78 Accepts]: Start accepts. Automaton has 156781 states and 609739 transitions. Word has length 54 [2022-01-18 08:58:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:58:17,696 INFO L470 AbstractCegarLoop]: Abstraction has 156781 states and 609739 transitions. [2022-01-18 08:58:17,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.391304347826087) internal successors, (101), 23 states have internal predecessors, (101), 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) [2022-01-18 08:58:17,696 INFO L276 IsEmpty]: Start isEmpty. Operand 156781 states and 609739 transitions. [2022-01-18 08:58:17,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:58:17,712 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:58:17,712 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:58:17,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-01-18 08:58:17,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-01-18 08:58:17,912 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:58:17,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:58:17,913 INFO L85 PathProgramCache]: Analyzing trace with hash 619109514, now seen corresponding path program 4 times [2022-01-18 08:58:17,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:58:17,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425611150] [2022-01-18 08:58:17,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:58:17,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:58:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:58:18,017 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:58:18,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:58:18,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425611150] [2022-01-18 08:58:18,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425611150] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:58:18,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255821697] [2022-01-18 08:58:18,018 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 08:58:18,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:58:18,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:58:18,019 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:58:18,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-01-18 08:58:18,111 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 08:58:18,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:58:18,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-18 08:58:18,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:58:18,149 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:58:18,197 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:58:18,198 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:58:18,303 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:58:18,381 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:58:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:58:18,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:58:18,432 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_887 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_887) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:58:19,160 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:58:19,160 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:58:19,162 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:58:19,170 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:58:19,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:58:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2022-01-18 08:58:19,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255821697] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:58:19,456 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:58:19,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 22 [2022-01-18 08:58:19,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818787370] [2022-01-18 08:58:19,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:58:19,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 08:58:19,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:58:19,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 08:58:19,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=333, Unknown=1, NotChecked=38, Total=462 [2022-01-18 08:58:19,457 INFO L87 Difference]: Start difference. First operand 156781 states and 609739 transitions. Second operand has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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) [2022-01-18 08:58:24,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:58:24,911 INFO L93 Difference]: Finished difference Result 358832 states and 1341712 transitions. [2022-01-18 08:58:24,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-01-18 08:58:24,911 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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 54 [2022-01-18 08:58:24,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:58:27,628 INFO L225 Difference]: With dead ends: 358832 [2022-01-18 08:58:27,628 INFO L226 Difference]: Without dead ends: 354304 [2022-01-18 08:58:27,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 66 ConstructedPredicates, 1 IntricatePredicates, 4 DeprecatedPredicates, 1648 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=696, Invalid=3726, Unknown=4, NotChecked=130, Total=4556 [2022-01-18 08:58:27,631 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 2436 mSDsluCounter, 3694 mSDsCounter, 0 mSdLazyCounter, 1537 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2436 SdHoareTripleChecker+Valid, 4075 SdHoareTripleChecker+Invalid, 3887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 1537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2037 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 08:58:27,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2436 Valid, 4075 Invalid, 3887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 1537 Invalid, 0 Unknown, 2037 Unchecked, 1.3s Time] [2022-01-18 08:58:28,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354304 states. [2022-01-18 08:58:33,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354304 to 184302. [2022-01-18 08:58:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184302 states, 184283 states have (on average 3.811659241492704) internal successors, (702424), 184301 states have internal predecessors, (702424), 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) [2022-01-18 08:58:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184302 states to 184302 states and 702424 transitions. [2022-01-18 08:58:35,644 INFO L78 Accepts]: Start accepts. Automaton has 184302 states and 702424 transitions. Word has length 54 [2022-01-18 08:58:35,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:58:35,644 INFO L470 AbstractCegarLoop]: Abstraction has 184302 states and 702424 transitions. [2022-01-18 08:58:35,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.636363636363637) internal successors, (124), 22 states have internal predecessors, (124), 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) [2022-01-18 08:58:35,644 INFO L276 IsEmpty]: Start isEmpty. Operand 184302 states and 702424 transitions. [2022-01-18 08:58:35,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:58:35,672 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:58:35,672 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:58:35,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-01-18 08:58:35,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:58:35,872 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:58:35,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:58:35,873 INFO L85 PathProgramCache]: Analyzing trace with hash 128482174, now seen corresponding path program 5 times [2022-01-18 08:58:35,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:58:35,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498613858] [2022-01-18 08:58:35,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:58:35,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:58:35,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:58:36,014 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:58:36,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:58:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498613858] [2022-01-18 08:58:36,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498613858] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:58:36,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496483380] [2022-01-18 08:58:36,015 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 08:58:36,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:58:36,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:58:36,016 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:58:36,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-01-18 08:58:36,110 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 08:58:36,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 08:58:36,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 40 conjunts are in the unsatisfiable core [2022-01-18 08:58:36,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:58:36,144 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:58:36,238 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 08:58:36,238 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 08:58:36,280 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-01-18 08:58:36,281 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 08:58:36,303 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:58:36,483 INFO L353 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-01-18 08:58:36,483 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 34 [2022-01-18 08:58:36,499 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2022-01-18 08:58:36,534 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 08:58:36,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:58:36,577 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_924 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_924) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:58:36,608 WARN L838 $PredicateComparison]: unable to prove that (or (forall ((|thr1Thread2of3ForFork0_~#l~0#1.offset| Int)) (not (= (mod (select (select |c_#memory_int| |c_thr1Thread2of3ForFork0_~#l~0#1.base|) |thr1Thread2of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) (forall ((v_ArrVal_924 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_924) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))))) is different from false [2022-01-18 08:58:36,635 INFO L353 Elim1Store]: treesize reduction 15, result has 64.3 percent of original size [2022-01-18 08:58:36,636 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 76 [2022-01-18 08:58:36,647 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:58:36,648 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 58 [2022-01-18 08:58:36,653 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-01-18 08:58:36,996 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:58:37,040 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 14 not checked. [2022-01-18 08:58:37,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496483380] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:58:37,040 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:58:37,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 12] total 25 [2022-01-18 08:58:37,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708843011] [2022-01-18 08:58:37,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:58:37,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-18 08:58:37,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:58:37,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-18 08:58:37,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=407, Unknown=2, NotChecked=86, Total=600 [2022-01-18 08:58:37,041 INFO L87 Difference]: Start difference. First operand 184302 states and 702424 transitions. Second operand has 25 states, 25 states have (on average 4.08) internal successors, (102), 25 states have internal predecessors, (102), 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) [2022-01-18 08:58:43,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:58:43,934 INFO L93 Difference]: Finished difference Result 320143 states and 1215108 transitions. [2022-01-18 08:58:43,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-01-18 08:58:43,934 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.08) internal successors, (102), 25 states have internal predecessors, (102), 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 54 [2022-01-18 08:58:43,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:58:45,735 INFO L225 Difference]: With dead ends: 320143 [2022-01-18 08:58:45,735 INFO L226 Difference]: Without dead ends: 320107 [2022-01-18 08:58:45,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 102 SyntacticMatches, 15 SemanticMatches, 91 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 3583 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1194, Invalid=6996, Unknown=8, NotChecked=358, Total=8556 [2022-01-18 08:58:45,736 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 3186 mSDsluCounter, 5015 mSDsCounter, 0 mSdLazyCounter, 2412 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 5387 SdHoareTripleChecker+Invalid, 7492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 2412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4641 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 08:58:45,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3186 Valid, 5387 Invalid, 7492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 2412 Invalid, 0 Unknown, 4641 Unchecked, 1.5s Time] [2022-01-18 08:58:47,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320107 states. [2022-01-18 08:58:52,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320107 to 183057. [2022-01-18 08:58:52,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183057 states, 183038 states have (on average 3.803849473879741) internal successors, (696249), 183056 states have internal predecessors, (696249), 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) [2022-01-18 08:58:54,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183057 states to 183057 states and 696249 transitions. [2022-01-18 08:58:54,283 INFO L78 Accepts]: Start accepts. Automaton has 183057 states and 696249 transitions. Word has length 54 [2022-01-18 08:58:54,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:58:54,283 INFO L470 AbstractCegarLoop]: Abstraction has 183057 states and 696249 transitions. [2022-01-18 08:58:54,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.08) internal successors, (102), 25 states have internal predecessors, (102), 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) [2022-01-18 08:58:54,283 INFO L276 IsEmpty]: Start isEmpty. Operand 183057 states and 696249 transitions. [2022-01-18 08:58:54,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:58:54,309 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:58:54,309 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:58:54,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-01-18 08:58:54,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:58:54,510 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:58:54,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:58:54,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1518640282, now seen corresponding path program 1 times [2022-01-18 08:58:54,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:58:54,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561919628] [2022-01-18 08:58:54,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:58:54,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:58:54,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:58:54,570 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 08:58:54,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:58:54,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561919628] [2022-01-18 08:58:54,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561919628] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:58:54,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129172639] [2022-01-18 08:58:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:58:54,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:58:54,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:58:54,572 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:58:54,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-01-18 08:58:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:58:54,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-18 08:58:54,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:58:54,858 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:58:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 08:58:54,877 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:58:54,999 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 08:58:54,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129172639] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:58:54,999 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:58:54,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 15 [2022-01-18 08:58:54,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210691241] [2022-01-18 08:58:54,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:58:55,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 08:58:55,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:58:55,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 08:58:55,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-01-18 08:58:55,000 INFO L87 Difference]: Start difference. First operand 183057 states and 696249 transitions. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2022-01-18 08:58:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:58:59,356 INFO L93 Difference]: Finished difference Result 328652 states and 1197935 transitions. [2022-01-18 08:58:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-01-18 08:58:59,356 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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 55 [2022-01-18 08:58:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:59:01,010 INFO L225 Difference]: With dead ends: 328652 [2022-01-18 08:59:01,010 INFO L226 Difference]: Without dead ends: 320559 [2022-01-18 08:59:01,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=376, Invalid=1184, Unknown=0, NotChecked=0, Total=1560 [2022-01-18 08:59:01,011 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 1710 mSDsluCounter, 2933 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:59:01,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1710 Valid, 3404 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-18 08:59:02,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320559 states. [2022-01-18 08:59:07,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320559 to 161573. [2022-01-18 08:59:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161573 states, 161554 states have (on average 3.7820790571573593) internal successors, (611010), 161572 states have internal predecessors, (611010), 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) [2022-01-18 08:59:08,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161573 states to 161573 states and 611010 transitions. [2022-01-18 08:59:08,632 INFO L78 Accepts]: Start accepts. Automaton has 161573 states and 611010 transitions. Word has length 55 [2022-01-18 08:59:08,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:59:08,632 INFO L470 AbstractCegarLoop]: Abstraction has 161573 states and 611010 transitions. [2022-01-18 08:59:08,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 15 states have internal predecessors, (89), 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) [2022-01-18 08:59:08,633 INFO L276 IsEmpty]: Start isEmpty. Operand 161573 states and 611010 transitions. [2022-01-18 08:59:08,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:59:08,652 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:59:08,652 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:59:08,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-01-18 08:59:08,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-01-18 08:59:08,853 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:59:08,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:59:08,853 INFO L85 PathProgramCache]: Analyzing trace with hash -2094548334, now seen corresponding path program 1 times [2022-01-18 08:59:08,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:59:08,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409870824] [2022-01-18 08:59:08,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:59:08,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:59:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:59:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:59:08,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:59:08,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409870824] [2022-01-18 08:59:08,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409870824] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:59:08,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778547631] [2022-01-18 08:59:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:59:08,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:59:08,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:59:08,964 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:59:08,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-01-18 08:59:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:59:09,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-18 08:59:09,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:59:09,096 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:59:09,143 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:59:09,143 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:59:09,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:59:09,341 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:59:09,361 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:59:09,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:59:09,392 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_994 (Array Int Int))) (not (= (mod c_~s~0 4294967296) (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_994) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296)))) is different from false [2022-01-18 08:59:09,419 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:59:09,420 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:59:09,422 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:59:09,429 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:59:10,309 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:59:10,356 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2022-01-18 08:59:10,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778547631] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:59:10,356 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:59:10,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 22 [2022-01-18 08:59:10,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909770933] [2022-01-18 08:59:10,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:59:10,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 08:59:10,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:59:10,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 08:59:10,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=333, Unknown=1, NotChecked=38, Total=462 [2022-01-18 08:59:10,358 INFO L87 Difference]: Start difference. First operand 161573 states and 611010 transitions. Second operand has 22 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 22 states have internal predecessors, (127), 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) [2022-01-18 08:59:13,985 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_994 (Array Int Int))) (not (= (mod c_~s~0 4294967296) (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_994) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296)))) (= (mod c_~c~0 4294967296) 1)) is different from false [2022-01-18 08:59:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:59:15,727 INFO L93 Difference]: Finished difference Result 306118 states and 1138896 transitions. [2022-01-18 08:59:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 08:59:15,727 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 22 states have internal predecessors, (127), 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 55 [2022-01-18 08:59:15,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:59:19,171 INFO L225 Difference]: With dead ends: 306118 [2022-01-18 08:59:19,172 INFO L226 Difference]: Without dead ends: 305876 [2022-01-18 08:59:19,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 105 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 2 IntricatePredicates, 4 DeprecatedPredicates, 2090 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=891, Invalid=4809, Unknown=8, NotChecked=298, Total=6006 [2022-01-18 08:59:19,173 INFO L933 BasicCegarLoop]: 479 mSDtfsCounter, 2503 mSDsluCounter, 5268 mSDsCounter, 0 mSdLazyCounter, 2185 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 5608 SdHoareTripleChecker+Invalid, 4119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1655 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 08:59:19,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2503 Valid, 5608 Invalid, 4119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2185 Invalid, 0 Unknown, 1655 Unchecked, 1.4s Time] [2022-01-18 08:59:19,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305876 states. [2022-01-18 08:59:24,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305876 to 158548. [2022-01-18 08:59:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158548 states, 158529 states have (on average 3.7884172611951126) internal successors, (600574), 158547 states have internal predecessors, (600574), 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) [2022-01-18 08:59:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158548 states to 158548 states and 600574 transitions. [2022-01-18 08:59:26,272 INFO L78 Accepts]: Start accepts. Automaton has 158548 states and 600574 transitions. Word has length 55 [2022-01-18 08:59:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:59:26,273 INFO L470 AbstractCegarLoop]: Abstraction has 158548 states and 600574 transitions. [2022-01-18 08:59:26,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.7727272727272725) internal successors, (127), 22 states have internal predecessors, (127), 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) [2022-01-18 08:59:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 158548 states and 600574 transitions. [2022-01-18 08:59:26,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 08:59:26,322 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:59:26,322 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:59:26,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-01-18 08:59:26,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-01-18 08:59:26,544 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 08:59:26,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:59:26,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1057076828, now seen corresponding path program 1 times [2022-01-18 08:59:26,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:59:26,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756026085] [2022-01-18 08:59:26,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:59:26,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:59:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:59:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:59:26,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:59:26,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756026085] [2022-01-18 08:59:26,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756026085] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:59:26,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093704183] [2022-01-18 08:59:26,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:59:26,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:59:26,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:59:26,699 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 08:59:26,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-01-18 08:59:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:59:26,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 42 conjunts are in the unsatisfiable core [2022-01-18 08:59:26,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:59:26,865 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 08:59:26,957 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 08:59:26,957 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 08:59:26,987 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 08:59:27,155 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 08:59:27,155 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 08:59:27,181 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 08:59:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:59:27,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:59:27,240 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1035 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_1035) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 08:59:27,434 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 08:59:27,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 08:59:27,437 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 08:59:27,439 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-01-18 08:59:27,676 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 08:59:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 08:59:27,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093704183] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:59:27,730 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:59:27,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 26 [2022-01-18 08:59:27,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013205386] [2022-01-18 08:59:27,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:59:27,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-18 08:59:27,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:59:27,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-18 08:59:27,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=474, Unknown=1, NotChecked=46, Total=650 [2022-01-18 08:59:27,731 INFO L87 Difference]: Start difference. First operand 158548 states and 600574 transitions. Second operand has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 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) [2022-01-18 09:00:20,195 WARN L838 $PredicateComparison]: unable to prove that (and (= c_~s~0 0) (forall ((v_ArrVal_1035 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_1035) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))))) is different from false [2022-01-18 09:00:20,367 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (mod (select (select |c_#memory_int| |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))) (= c_~s~0 0) (forall ((v_ArrVal_1035 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_1035) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))))) is different from false [2022-01-18 09:00:30,671 WARN L838 $PredicateComparison]: unable to prove that (and (= (mod c_~c~0 4294967296) 1) (= c_~s~0 0) (forall ((v_ArrVal_1035 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_1035) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296))))) is different from false [2022-01-18 09:00:38,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:00:38,283 INFO L93 Difference]: Finished difference Result 186529 states and 702254 transitions. [2022-01-18 09:00:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-18 09:00:38,300 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 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 58 [2022-01-18 09:00:38,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:00:39,252 INFO L225 Difference]: With dead ends: 186529 [2022-01-18 09:00:39,252 INFO L226 Difference]: Without dead ends: 186498 [2022-01-18 09:00:39,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 113 SyntacticMatches, 22 SemanticMatches, 93 ConstructedPredicates, 4 IntricatePredicates, 3 DeprecatedPredicates, 3113 ImplicationChecksByTransitivity, 67.6s TimeCoverageRelationStatistics Valid=1698, Invalid=6467, Unknown=41, NotChecked=724, Total=8930 [2022-01-18 09:00:39,253 INFO L933 BasicCegarLoop]: 478 mSDtfsCounter, 1502 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 4609 SdHoareTripleChecker+Invalid, 6078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4184 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:00:39,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1502 Valid, 4609 Invalid, 6078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1751 Invalid, 0 Unknown, 4184 Unchecked, 0.9s Time] [2022-01-18 09:00:39,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186498 states. [2022-01-18 09:00:43,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186498 to 160208. [2022-01-18 09:00:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160208 states, 160189 states have (on average 3.7907783930232415) internal successors, (607241), 160207 states have internal predecessors, (607241), 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) [2022-01-18 09:00:44,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160208 states to 160208 states and 607241 transitions. [2022-01-18 09:00:44,707 INFO L78 Accepts]: Start accepts. Automaton has 160208 states and 607241 transitions. Word has length 58 [2022-01-18 09:00:44,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:00:44,707 INFO L470 AbstractCegarLoop]: Abstraction has 160208 states and 607241 transitions. [2022-01-18 09:00:44,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.230769230769231) internal successors, (136), 26 states have internal predecessors, (136), 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) [2022-01-18 09:00:44,707 INFO L276 IsEmpty]: Start isEmpty. Operand 160208 states and 607241 transitions. [2022-01-18 09:00:44,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:00:44,760 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:00:44,760 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:00:44,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-01-18 09:00:44,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2022-01-18 09:00:44,975 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:00:44,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:00:44,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2064022667, now seen corresponding path program 1 times [2022-01-18 09:00:44,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:00:44,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897662452] [2022-01-18 09:00:44,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:00:44,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:00:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:00:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:00:45,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:00:45,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897662452] [2022-01-18 09:00:45,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897662452] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:00:45,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139163793] [2022-01-18 09:00:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:00:45,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:00:45,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:00:45,198 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:00:45,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-01-18 09:00:45,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:00:45,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 48 conjunts are in the unsatisfiable core [2022-01-18 09:00:45,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:00:45,342 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:00:45,393 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 09:00:45,393 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 09:00:45,539 INFO L353 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-01-18 09:00:45,540 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-01-18 09:00:45,577 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:00:45,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 09:00:45,746 INFO L353 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-01-18 09:00:45,746 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 09:00:45,784 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 09:00:45,810 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:00:45,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:00:45,852 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1082 (Array Int Int))) (not (= (mod c_~s~0 4294967296) (mod (select (select (store |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base| v_ArrVal_1082) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296)))) is different from false [2022-01-18 09:00:46,026 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 09:00:46,027 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2022-01-18 09:00:46,029 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 73 [2022-01-18 09:00:46,032 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 66 [2022-01-18 09:00:46,034 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2022-01-18 09:00:46,656 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-18 09:00:46,657 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2022-01-18 09:00:46,715 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:00:46,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139163793] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:00:46,715 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:00:46,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 13] total 29 [2022-01-18 09:00:46,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44440686] [2022-01-18 09:00:46,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:00:46,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:00:46,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:00:46,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:00:46,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=615, Unknown=3, NotChecked=52, Total=812 [2022-01-18 09:00:46,717 INFO L87 Difference]: Start difference. First operand 160208 states and 607241 transitions. Second operand has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 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) [2022-01-18 09:01:11,165 WARN L838 $PredicateComparison]: unable to prove that (and (not (= (mod c_~c~0 4294967296) 1)) (= c_~s~0 0) (forall ((v_ArrVal_1082 (Array Int Int))) (not (= (mod c_~s~0 4294967296) (mod (select (select (store |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base| v_ArrVal_1082) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296)))) (not (= (mod (+ c_~t~0 1) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 09:02:21,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:02:21,188 INFO L93 Difference]: Finished difference Result 202052 states and 754521 transitions. [2022-01-18 09:02:21,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-01-18 09:02:21,188 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 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 58 [2022-01-18 09:02:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:02:22,178 INFO L225 Difference]: With dead ends: 202052 [2022-01-18 09:02:22,179 INFO L226 Difference]: Without dead ends: 202052 [2022-01-18 09:02:22,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 105 SyntacticMatches, 23 SemanticMatches, 79 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2748 ImplicationChecksByTransitivity, 91.6s TimeCoverageRelationStatistics Valid=858, Invalid=5185, Unknown=127, NotChecked=310, Total=6480 [2022-01-18 09:02:22,180 INFO L933 BasicCegarLoop]: 377 mSDtfsCounter, 1724 mSDsluCounter, 5073 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 5251 SdHoareTripleChecker+Invalid, 5406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3832 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-18 09:02:22,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1724 Valid, 5251 Invalid, 5406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1407 Invalid, 0 Unknown, 3832 Unchecked, 1.5s Time] [2022-01-18 09:02:23,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202052 states. [2022-01-18 09:02:26,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202052 to 160677. [2022-01-18 09:02:26,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160677 states, 160658 states have (on average 3.7914825281031757) internal successors, (609132), 160676 states have internal predecessors, (609132), 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) [2022-01-18 09:02:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160677 states to 160677 states and 609132 transitions. [2022-01-18 09:02:28,285 INFO L78 Accepts]: Start accepts. Automaton has 160677 states and 609132 transitions. Word has length 58 [2022-01-18 09:02:28,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:02:28,285 INFO L470 AbstractCegarLoop]: Abstraction has 160677 states and 609132 transitions. [2022-01-18 09:02:28,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.689655172413793) internal successors, (136), 29 states have internal predecessors, (136), 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) [2022-01-18 09:02:28,285 INFO L276 IsEmpty]: Start isEmpty. Operand 160677 states and 609132 transitions. [2022-01-18 09:02:28,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:02:28,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:02:28,334 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:02:28,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-01-18 09:02:28,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-01-18 09:02:28,535 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:02:28,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:02:28,535 INFO L85 PathProgramCache]: Analyzing trace with hash -490751558, now seen corresponding path program 1 times [2022-01-18 09:02:28,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:02:28,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801807337] [2022-01-18 09:02:28,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:02:28,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:02:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:02:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:02:28,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:02:28,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801807337] [2022-01-18 09:02:28,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801807337] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:02:28,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914744256] [2022-01-18 09:02:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:02:28,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:02:28,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:02:28,708 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:02:28,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-01-18 09:02:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:02:28,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 42 conjunts are in the unsatisfiable core [2022-01-18 09:02:28,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:02:28,915 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:02:29,005 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 09:02:29,006 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 09:02:29,099 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 09:02:29,099 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 09:02:29,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:02:29,148 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 09:02:29,169 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:02:29,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:02:29,204 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1123 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_1123) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 09:02:29,211 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 09:02:29,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 09:02:29,212 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 09:02:29,218 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 09:02:29,526 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 09:02:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:02:29,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914744256] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:02:29,579 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:02:29,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 24 [2022-01-18 09:02:29,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57596016] [2022-01-18 09:02:29,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:02:29,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 09:02:29,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:02:29,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 09:02:29,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=406, Unknown=1, NotChecked=42, Total=552 [2022-01-18 09:02:29,580 INFO L87 Difference]: Start difference. First operand 160677 states and 609132 transitions. Second operand has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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) [2022-01-18 09:02:34,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:02:34,794 INFO L93 Difference]: Finished difference Result 241084 states and 909841 transitions. [2022-01-18 09:02:34,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-18 09:02:34,795 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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 58 [2022-01-18 09:02:34,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:02:36,093 INFO L225 Difference]: With dead ends: 241084 [2022-01-18 09:02:36,094 INFO L226 Difference]: Without dead ends: 241084 [2022-01-18 09:02:36,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 106 SyntacticMatches, 9 SemanticMatches, 78 ConstructedPredicates, 1 IntricatePredicates, 2 DeprecatedPredicates, 2458 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=902, Invalid=5259, Unknown=5, NotChecked=154, Total=6320 [2022-01-18 09:02:36,095 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 1722 mSDsluCounter, 4788 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 5007 SdHoareTripleChecker+Invalid, 4626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1919 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-01-18 09:02:36,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1722 Valid, 5007 Invalid, 4626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 2505 Invalid, 0 Unknown, 1919 Unchecked, 1.4s Time] [2022-01-18 09:02:36,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241084 states. [2022-01-18 09:02:40,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241084 to 160858. [2022-01-18 09:02:41,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160858 states, 160839 states have (on average 3.791742052611618) internal successors, (609860), 160857 states have internal predecessors, (609860), 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) [2022-01-18 09:02:42,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160858 states to 160858 states and 609860 transitions. [2022-01-18 09:02:42,724 INFO L78 Accepts]: Start accepts. Automaton has 160858 states and 609860 transitions. Word has length 58 [2022-01-18 09:02:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:02:42,724 INFO L470 AbstractCegarLoop]: Abstraction has 160858 states and 609860 transitions. [2022-01-18 09:02:42,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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) [2022-01-18 09:02:42,724 INFO L276 IsEmpty]: Start isEmpty. Operand 160858 states and 609860 transitions. [2022-01-18 09:02:42,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:02:42,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:02:42,773 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:02:42,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2022-01-18 09:02:42,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2022-01-18 09:02:42,973 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:02:42,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:02:42,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1428087371, now seen corresponding path program 2 times [2022-01-18 09:02:42,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:02:42,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969695077] [2022-01-18 09:02:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:02:42,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:02:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:02:43,139 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:02:43,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:02:43,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969695077] [2022-01-18 09:02:43,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969695077] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:02:43,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7253325] [2022-01-18 09:02:43,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:02:43,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:02:43,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:02:43,144 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:02:43,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-01-18 09:02:43,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 09:02:43,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:02:43,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 42 conjunts are in the unsatisfiable core [2022-01-18 09:02:43,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:02:43,340 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:02:43,464 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 09:02:43,464 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 09:02:43,590 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 09:02:43,590 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 09:02:43,607 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:02:43,633 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 09:02:43,655 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:02:43,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:02:43,691 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1168 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base| v_ArrVal_1168) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 09:02:43,699 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 09:02:43,699 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 09:02:43,701 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 09:02:43,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 09:02:44,002 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 09:02:44,054 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:02:44,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7253325] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:02:44,054 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:02:44,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 24 [2022-01-18 09:02:44,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569416830] [2022-01-18 09:02:44,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:02:44,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 09:02:44,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:02:44,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 09:02:44,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=406, Unknown=1, NotChecked=42, Total=552 [2022-01-18 09:02:44,055 INFO L87 Difference]: Start difference. First operand 160858 states and 609860 transitions. Second operand has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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) [2022-01-18 09:02:49,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:02:49,471 INFO L93 Difference]: Finished difference Result 240815 states and 919653 transitions. [2022-01-18 09:02:49,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 09:02:49,472 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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 58 [2022-01-18 09:02:49,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:02:50,686 INFO L225 Difference]: With dead ends: 240815 [2022-01-18 09:02:50,686 INFO L226 Difference]: Without dead ends: 240806 [2022-01-18 09:02:50,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 106 SyntacticMatches, 11 SemanticMatches, 75 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2248 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=840, Invalid=4863, Unknown=1, NotChecked=148, Total=5852 [2022-01-18 09:02:50,687 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 1635 mSDsluCounter, 7159 mSDsCounter, 0 mSdLazyCounter, 3051 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 7477 SdHoareTripleChecker+Invalid, 4793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 3051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1552 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:02:50,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1635 Valid, 7477 Invalid, 4793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 3051 Invalid, 0 Unknown, 1552 Unchecked, 1.7s Time] [2022-01-18 09:02:51,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240806 states. [2022-01-18 09:02:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240806 to 161218. [2022-01-18 09:02:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161218 states, 161199 states have (on average 3.7924428811593125) internal successors, (611338), 161217 states have internal predecessors, (611338), 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) [2022-01-18 09:02:57,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161218 states to 161218 states and 611338 transitions. [2022-01-18 09:02:57,510 INFO L78 Accepts]: Start accepts. Automaton has 161218 states and 611338 transitions. Word has length 58 [2022-01-18 09:02:57,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:02:57,510 INFO L470 AbstractCegarLoop]: Abstraction has 161218 states and 611338 transitions. [2022-01-18 09:02:57,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.583333333333333) internal successors, (134), 24 states have internal predecessors, (134), 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) [2022-01-18 09:02:57,511 INFO L276 IsEmpty]: Start isEmpty. Operand 161218 states and 611338 transitions. [2022-01-18 09:02:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:02:57,566 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:02:57,566 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:02:57,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-01-18 09:02:57,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:02:57,766 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:02:57,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:02:57,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1360367882, now seen corresponding path program 2 times [2022-01-18 09:02:57,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:02:57,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669921282] [2022-01-18 09:02:57,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:02:57,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:02:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:02:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:02:57,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:02:57,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669921282] [2022-01-18 09:02:57,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669921282] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:02:57,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:02:57,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-18 09:02:57,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633480830] [2022-01-18 09:02:57,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:02:57,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-18 09:02:57,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:02:57,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-18 09:02:57,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:02:57,917 INFO L87 Difference]: Start difference. First operand 161218 states and 611338 transitions. Second operand has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-01-18 09:03:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:03:00,244 INFO L93 Difference]: Finished difference Result 161653 states and 613016 transitions. [2022-01-18 09:03:00,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:03:00,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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 58 [2022-01-18 09:03:00,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:03:01,572 INFO L225 Difference]: With dead ends: 161653 [2022-01-18 09:03:01,572 INFO L226 Difference]: Without dead ends: 161649 [2022-01-18 09:03:01,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-01-18 09:03:01,574 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 165 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:03:01,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 917 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:03:01,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161649 states. [2022-01-18 09:03:05,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161649 to 161246. [2022-01-18 09:03:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161246 states, 161227 states have (on average 3.7924727247917533) internal successors, (611449), 161245 states have internal predecessors, (611449), 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) [2022-01-18 09:03:07,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161246 states to 161246 states and 611449 transitions. [2022-01-18 09:03:07,240 INFO L78 Accepts]: Start accepts. Automaton has 161246 states and 611449 transitions. Word has length 58 [2022-01-18 09:03:07,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:03:07,240 INFO L470 AbstractCegarLoop]: Abstraction has 161246 states and 611449 transitions. [2022-01-18 09:03:07,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-01-18 09:03:07,240 INFO L276 IsEmpty]: Start isEmpty. Operand 161246 states and 611449 transitions. [2022-01-18 09:03:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:03:07,283 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:03:07,283 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:03:07,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-18 09:03:07,283 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:03:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:03:07,284 INFO L85 PathProgramCache]: Analyzing trace with hash 279915997, now seen corresponding path program 3 times [2022-01-18 09:03:07,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:03:07,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210842365] [2022-01-18 09:03:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:03:07,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:03:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:03:07,442 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:03:07,442 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:03:07,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210842365] [2022-01-18 09:03:07,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210842365] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:03:07,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:03:07,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-18 09:03:07,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400455557] [2022-01-18 09:03:07,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:03:07,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-18 09:03:07,443 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:03:07,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-18 09:03:07,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:03:07,444 INFO L87 Difference]: Start difference. First operand 161246 states and 611449 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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) [2022-01-18 09:03:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:03:09,288 INFO L93 Difference]: Finished difference Result 162465 states and 616389 transitions. [2022-01-18 09:03:09,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:03:09,289 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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 58 [2022-01-18 09:03:09,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:03:10,532 INFO L225 Difference]: With dead ends: 162465 [2022-01-18 09:03:10,532 INFO L226 Difference]: Without dead ends: 162465 [2022-01-18 09:03:10,532 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-18 09:03:10,533 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 210 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:03:10,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 905 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:03:10,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162465 states. [2022-01-18 09:03:13,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162465 to 161562. [2022-01-18 09:03:14,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161562 states, 161543 states have (on average 3.793132478658933) internal successors, (612754), 161561 states have internal predecessors, (612754), 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) [2022-01-18 09:03:15,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161562 states to 161562 states and 612754 transitions. [2022-01-18 09:03:15,596 INFO L78 Accepts]: Start accepts. Automaton has 161562 states and 612754 transitions. Word has length 58 [2022-01-18 09:03:15,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:03:15,596 INFO L470 AbstractCegarLoop]: Abstraction has 161562 states and 612754 transitions. [2022-01-18 09:03:15,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 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) [2022-01-18 09:03:15,597 INFO L276 IsEmpty]: Start isEmpty. Operand 161562 states and 612754 transitions. [2022-01-18 09:03:15,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:03:15,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:03:15,647 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:03:15,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-18 09:03:15,647 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:03:15,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:03:15,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1432988388, now seen corresponding path program 3 times [2022-01-18 09:03:15,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:03:15,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596798669] [2022-01-18 09:03:15,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:03:15,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:03:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:03:15,762 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 09:03:15,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:03:15,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596798669] [2022-01-18 09:03:15,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596798669] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:03:15,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:03:15,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 09:03:15,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031961011] [2022-01-18 09:03:15,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:03:15,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 09:03:15,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:03:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 09:03:15,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:03:15,763 INFO L87 Difference]: Start difference. First operand 161562 states and 612754 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 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) [2022-01-18 09:03:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:03:17,536 INFO L93 Difference]: Finished difference Result 162471 states and 616250 transitions. [2022-01-18 09:03:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 09:03:17,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 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 58 [2022-01-18 09:03:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:03:18,249 INFO L225 Difference]: With dead ends: 162471 [2022-01-18 09:03:18,249 INFO L226 Difference]: Without dead ends: 162471 [2022-01-18 09:03:18,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:03:18,250 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 170 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:03:18,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 507 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 09:03:18,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162471 states. [2022-01-18 09:03:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162471 to 161636. [2022-01-18 09:03:21,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161636 states, 161617 states have (on average 3.7932333851018147) internal successors, (613051), 161635 states have internal predecessors, (613051), 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) [2022-01-18 09:03:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161636 states to 161636 states and 613051 transitions. [2022-01-18 09:03:23,272 INFO L78 Accepts]: Start accepts. Automaton has 161636 states and 613051 transitions. Word has length 58 [2022-01-18 09:03:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:03:23,272 INFO L470 AbstractCegarLoop]: Abstraction has 161636 states and 613051 transitions. [2022-01-18 09:03:23,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 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) [2022-01-18 09:03:23,272 INFO L276 IsEmpty]: Start isEmpty. Operand 161636 states and 613051 transitions. [2022-01-18 09:03:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:03:23,315 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:03:23,315 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:03:23,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-18 09:03:23,316 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:03:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:03:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash 162023533, now seen corresponding path program 4 times [2022-01-18 09:03:23,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:03:23,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979221914] [2022-01-18 09:03:23,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:03:23,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:03:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:03:23,414 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:03:23,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:03:23,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979221914] [2022-01-18 09:03:23,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979221914] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:03:23,415 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:03:23,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 09:03:23,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815151703] [2022-01-18 09:03:23,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:03:23,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 09:03:23,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:03:23,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 09:03:23,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:03:23,416 INFO L87 Difference]: Start difference. First operand 161636 states and 613051 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2022-01-18 09:03:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:03:25,400 INFO L93 Difference]: Finished difference Result 164925 states and 626405 transitions. [2022-01-18 09:03:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 09:03:25,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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 58 [2022-01-18 09:03:25,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:03:26,623 INFO L225 Difference]: With dead ends: 164925 [2022-01-18 09:03:26,639 INFO L226 Difference]: Without dead ends: 164925 [2022-01-18 09:03:26,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:03:26,640 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 237 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:03:26,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [237 Valid, 821 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:03:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164925 states. [2022-01-18 09:03:30,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164925 to 161753. [2022-01-18 09:03:30,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161753 states, 161734 states have (on average 3.7934015111232022) internal successors, (613522), 161752 states have internal predecessors, (613522), 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) [2022-01-18 09:03:31,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161753 states to 161753 states and 613522 transitions. [2022-01-18 09:03:31,761 INFO L78 Accepts]: Start accepts. Automaton has 161753 states and 613522 transitions. Word has length 58 [2022-01-18 09:03:31,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:03:31,762 INFO L470 AbstractCegarLoop]: Abstraction has 161753 states and 613522 transitions. [2022-01-18 09:03:31,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 9 states have internal predecessors, (50), 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) [2022-01-18 09:03:31,762 INFO L276 IsEmpty]: Start isEmpty. Operand 161753 states and 613522 transitions. [2022-01-18 09:03:31,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:03:31,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:03:31,826 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:03:31,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-18 09:03:31,826 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:03:31,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:03:31,826 INFO L85 PathProgramCache]: Analyzing trace with hash -2062051787, now seen corresponding path program 1 times [2022-01-18 09:03:31,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:03:31,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063561033] [2022-01-18 09:03:31,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:03:31,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:03:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:03:31,932 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:03:31,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:03:31,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063561033] [2022-01-18 09:03:31,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063561033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:03:31,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:03:31,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-18 09:03:31,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103993590] [2022-01-18 09:03:31,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:03:31,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 09:03:31,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:03:31,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 09:03:31,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-01-18 09:03:31,934 INFO L87 Difference]: Start difference. First operand 161753 states and 613522 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2022-01-18 09:03:33,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:03:33,788 INFO L93 Difference]: Finished difference Result 163945 states and 621813 transitions. [2022-01-18 09:03:33,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 09:03:33,788 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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 58 [2022-01-18 09:03:33,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:03:34,502 INFO L225 Difference]: With dead ends: 163945 [2022-01-18 09:03:34,502 INFO L226 Difference]: Without dead ends: 163936 [2022-01-18 09:03:34,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:03:34,503 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 192 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:03:34,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [192 Valid, 971 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:03:34,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163936 states. [2022-01-18 09:03:38,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163936 to 161182. [2022-01-18 09:03:38,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161182 states, 161163 states have (on average 3.791261021450333) internal successors, (611011), 161181 states have internal predecessors, (611011), 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) [2022-01-18 09:03:39,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161182 states to 161182 states and 611011 transitions. [2022-01-18 09:03:39,628 INFO L78 Accepts]: Start accepts. Automaton has 161182 states and 611011 transitions. Word has length 58 [2022-01-18 09:03:39,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:03:39,628 INFO L470 AbstractCegarLoop]: Abstraction has 161182 states and 611011 transitions. [2022-01-18 09:03:39,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 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) [2022-01-18 09:03:39,628 INFO L276 IsEmpty]: Start isEmpty. Operand 161182 states and 611011 transitions. [2022-01-18 09:03:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:03:39,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:03:39,671 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:03:39,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-18 09:03:39,671 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:03:39,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:03:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash 456085144, now seen corresponding path program 2 times [2022-01-18 09:03:39,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:03:39,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831813514] [2022-01-18 09:03:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:03:39,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:03:39,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:03:39,790 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:03:39,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:03:39,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831813514] [2022-01-18 09:03:39,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831813514] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:03:39,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766874415] [2022-01-18 09:03:39,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:03:39,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:03:39,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:03:39,796 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:03:39,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-01-18 09:03:39,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 09:03:39,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:03:39,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 39 conjunts are in the unsatisfiable core [2022-01-18 09:03:39,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:03:40,017 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:03:40,043 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:03:40,237 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 09:03:40,237 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 09:03:40,266 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 09:03:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:03:40,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:03:40,322 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1302 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_thr1_~#l~0#1.base| v_ArrVal_1302) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 09:03:40,500 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 09:03:40,500 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 09:03:40,502 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 09:03:40,504 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2022-01-18 09:03:40,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 09:03:40,650 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:03:40,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766874415] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:03:40,650 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:03:40,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 11] total 23 [2022-01-18 09:03:40,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274933055] [2022-01-18 09:03:40,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:03:40,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-18 09:03:40,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:03:40,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-18 09:03:40,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=359, Unknown=1, NotChecked=40, Total=506 [2022-01-18 09:03:40,651 INFO L87 Difference]: Start difference. First operand 161182 states and 611011 transitions. Second operand has 23 states, 23 states have (on average 4.869565217391305) internal successors, (112), 23 states have internal predecessors, (112), 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) [2022-01-18 09:03:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:03:50,058 INFO L93 Difference]: Finished difference Result 272842 states and 1003491 transitions. [2022-01-18 09:03:50,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-18 09:03:50,059 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 4.869565217391305) internal successors, (112), 23 states have internal predecessors, (112), 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 58 [2022-01-18 09:03:50,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:03:52,062 INFO L225 Difference]: With dead ends: 272842 [2022-01-18 09:03:52,062 INFO L226 Difference]: Without dead ends: 264235 [2022-01-18 09:03:52,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 111 SyntacticMatches, 12 SemanticMatches, 78 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2519 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1130, Invalid=5020, Unknown=16, NotChecked=154, Total=6320 [2022-01-18 09:03:52,063 INFO L933 BasicCegarLoop]: 615 mSDtfsCounter, 1918 mSDsluCounter, 5202 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 5686 SdHoareTripleChecker+Invalid, 5213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3303 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:03:52,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1918 Valid, 5686 Invalid, 5213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1762 Invalid, 0 Unknown, 3303 Unchecked, 1.9s Time] [2022-01-18 09:03:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264235 states. [2022-01-18 09:03:57,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264235 to 140545. [2022-01-18 09:03:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140545 states, 140526 states have (on average 3.7658226947326474) internal successors, (529196), 140544 states have internal predecessors, (529196), 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) [2022-01-18 09:03:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140545 states to 140545 states and 529196 transitions. [2022-01-18 09:03:59,154 INFO L78 Accepts]: Start accepts. Automaton has 140545 states and 529196 transitions. Word has length 58 [2022-01-18 09:03:59,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:03:59,154 INFO L470 AbstractCegarLoop]: Abstraction has 140545 states and 529196 transitions. [2022-01-18 09:03:59,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 4.869565217391305) internal successors, (112), 23 states have internal predecessors, (112), 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) [2022-01-18 09:03:59,154 INFO L276 IsEmpty]: Start isEmpty. Operand 140545 states and 529196 transitions. [2022-01-18 09:03:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-18 09:03:59,199 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:03:59,199 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:03:59,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2022-01-18 09:03:59,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2022-01-18 09:03:59,415 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:03:59,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:03:59,416 INFO L85 PathProgramCache]: Analyzing trace with hash -550860695, now seen corresponding path program 5 times [2022-01-18 09:03:59,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:03:59,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940304063] [2022-01-18 09:03:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:03:59,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:03:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:03:59,692 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:03:59,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:03:59,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940304063] [2022-01-18 09:03:59,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940304063] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:03:59,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544920893] [2022-01-18 09:03:59,693 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-18 09:03:59,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:03:59,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:03:59,711 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:03:59,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-01-18 09:03:59,906 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2022-01-18 09:03:59,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:03:59,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 53 conjunts are in the unsatisfiable core [2022-01-18 09:03:59,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:03:59,948 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:04:00,076 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 09:04:00,076 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 09:04:00,114 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 09:04:00,114 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 09:04:00,149 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:04:00,294 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 09:04:00,365 INFO L353 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2022-01-18 09:04:00,365 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2022-01-18 09:04:00,392 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 09:04:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:04:00,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:04:00,463 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1349 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_thr1Thread3of3ForFork0_~#l~0#1.base| v_ArrVal_1349) |c_thr1Thread1of3ForFork0_~#l~0#1.base|) |c_thr1Thread1of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 09:04:00,678 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 09:04:00,678 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2022-01-18 09:04:00,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 163 treesize of output 151 [2022-01-18 09:04:00,688 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 138 [2022-01-18 09:04:00,692 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 134 [2022-01-18 09:04:01,999 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-18 09:04:01,999 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 18 [2022-01-18 09:04:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:04:02,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544920893] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:04:02,061 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:04:02,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 13] total 29 [2022-01-18 09:04:02,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364852614] [2022-01-18 09:04:02,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:04:02,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-01-18 09:04:02,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:04:02,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-01-18 09:04:02,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=618, Unknown=3, NotChecked=52, Total=812 [2022-01-18 09:04:02,062 INFO L87 Difference]: Start difference. First operand 140545 states and 529196 transitions. Second operand has 29 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 29 states have internal predecessors, (114), 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) [2022-01-18 09:04:31,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:04:31,965 INFO L93 Difference]: Finished difference Result 172597 states and 651166 transitions. [2022-01-18 09:04:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-01-18 09:04:31,966 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 29 states have internal predecessors, (114), 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 58 [2022-01-18 09:04:31,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:04:33,192 INFO L225 Difference]: With dead ends: 172597 [2022-01-18 09:04:33,192 INFO L226 Difference]: Without dead ends: 172597 [2022-01-18 09:04:33,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 109 SyntacticMatches, 13 SemanticMatches, 102 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4253 ImplicationChecksByTransitivity, 27.5s TimeCoverageRelationStatistics Valid=1204, Invalid=9080, Unknown=226, NotChecked=202, Total=10712 [2022-01-18 09:04:33,193 INFO L933 BasicCegarLoop]: 489 mSDtfsCounter, 3174 mSDsluCounter, 6687 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3174 SdHoareTripleChecker+Valid, 6925 SdHoareTripleChecker+Invalid, 8573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5667 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-18 09:04:33,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3174 Valid, 6925 Invalid, 8573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2595 Invalid, 0 Unknown, 5667 Unchecked, 1.3s Time] [2022-01-18 09:04:33,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172597 states. [2022-01-18 09:04:36,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172597 to 137845. [2022-01-18 09:04:37,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137845 states, 137826 states have (on average 3.7669815564552405) internal successors, (519188), 137844 states have internal predecessors, (519188), 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) [2022-01-18 09:04:37,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137845 states to 137845 states and 519188 transitions. [2022-01-18 09:04:37,533 INFO L78 Accepts]: Start accepts. Automaton has 137845 states and 519188 transitions. Word has length 58 [2022-01-18 09:04:37,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:04:37,534 INFO L470 AbstractCegarLoop]: Abstraction has 137845 states and 519188 transitions. [2022-01-18 09:04:37,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.9310344827586206) internal successors, (114), 29 states have internal predecessors, (114), 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) [2022-01-18 09:04:37,534 INFO L276 IsEmpty]: Start isEmpty. Operand 137845 states and 519188 transitions. [2022-01-18 09:04:37,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:04:37,611 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:04:37,611 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:04:37,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2022-01-18 09:04:37,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2022-01-18 09:04:37,812 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:04:37,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:04:37,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1565552498, now seen corresponding path program 1 times [2022-01-18 09:04:37,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:04:37,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649598627] [2022-01-18 09:04:37,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:04:37,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:04:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:04:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:04:38,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:04:38,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649598627] [2022-01-18 09:04:38,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649598627] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:04:38,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431635502] [2022-01-18 09:04:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:04:38,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:04:38,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:04:38,619 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:04:38,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-01-18 09:04:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:04:38,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 09:04:38,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:04:39,024 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:04:39,083 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:04:39,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:04:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:04:39,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431635502] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:04:39,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:04:39,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 19 [2022-01-18 09:04:39,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761928172] [2022-01-18 09:04:39,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:04:39,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:04:39,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:04:39,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:04:39,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:04:39,243 INFO L87 Difference]: Start difference. First operand 137845 states and 519188 transitions. Second operand has 19 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 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) [2022-01-18 09:04:46,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:04:46,478 INFO L93 Difference]: Finished difference Result 385926 states and 1382703 transitions. [2022-01-18 09:04:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-01-18 09:04:46,479 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 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 63 [2022-01-18 09:04:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:04:49,246 INFO L225 Difference]: With dead ends: 385926 [2022-01-18 09:04:49,247 INFO L226 Difference]: Without dead ends: 370396 [2022-01-18 09:04:49,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1590 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=749, Invalid=3673, Unknown=0, NotChecked=0, Total=4422 [2022-01-18 09:04:49,247 INFO L933 BasicCegarLoop]: 499 mSDtfsCounter, 2223 mSDsluCounter, 5511 mSDsCounter, 0 mSdLazyCounter, 1960 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 5943 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-01-18 09:04:49,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2223 Valid, 5943 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1960 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-01-18 09:04:49,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370396 states. [2022-01-18 09:04:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370396 to 139878. [2022-01-18 09:04:55,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139878 states, 139859 states have (on average 3.734561236674079) internal successors, (522312), 139877 states have internal predecessors, (522312), 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) [2022-01-18 09:04:55,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139878 states to 139878 states and 522312 transitions. [2022-01-18 09:04:55,914 INFO L78 Accepts]: Start accepts. Automaton has 139878 states and 522312 transitions. Word has length 63 [2022-01-18 09:04:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:04:55,914 INFO L470 AbstractCegarLoop]: Abstraction has 139878 states and 522312 transitions. [2022-01-18 09:04:55,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 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) [2022-01-18 09:04:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 139878 states and 522312 transitions. [2022-01-18 09:04:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:04:56,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:04:56,812 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:04:56,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-01-18 09:04:57,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2022-01-18 09:04:57,027 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:04:57,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:04:57,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1010518524, now seen corresponding path program 1 times [2022-01-18 09:04:57,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:04:57,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419308385] [2022-01-18 09:04:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:04:57,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:04:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:04:57,104 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:04:57,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:04:57,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419308385] [2022-01-18 09:04:57,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419308385] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:04:57,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670422400] [2022-01-18 09:04:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:04:57,107 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:04:57,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:04:57,108 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:04:57,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-01-18 09:04:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:04:57,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 09:04:57,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:04:57,438 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:04:57,484 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:04:57,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:04:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:04:57,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670422400] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:04:57,644 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:04:57,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 19 [2022-01-18 09:04:57,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776312362] [2022-01-18 09:04:57,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:04:57,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:04:57,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:04:57,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:04:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:04:57,645 INFO L87 Difference]: Start difference. First operand 139878 states and 522312 transitions. Second operand has 19 states, 19 states have (on average 6.2105263157894735) internal successors, (118), 19 states have internal predecessors, (118), 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) [2022-01-18 09:05:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:05:05,341 INFO L93 Difference]: Finished difference Result 440557 states and 1571712 transitions. [2022-01-18 09:05:05,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-01-18 09:05:05,342 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.2105263157894735) internal successors, (118), 19 states have internal predecessors, (118), 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 63 [2022-01-18 09:05:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:05:08,443 INFO L225 Difference]: With dead ends: 440557 [2022-01-18 09:05:08,443 INFO L226 Difference]: Without dead ends: 425783 [2022-01-18 09:05:08,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=842, Invalid=3988, Unknown=0, NotChecked=0, Total=4830 [2022-01-18 09:05:08,444 INFO L933 BasicCegarLoop]: 747 mSDtfsCounter, 2927 mSDsluCounter, 5815 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2927 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:05:08,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2927 Valid, 6523 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-01-18 09:05:09,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425783 states. [2022-01-18 09:05:15,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425783 to 137045. [2022-01-18 09:05:15,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137045 states, 137026 states have (on average 3.7174112942069386) internal successors, (509382), 137044 states have internal predecessors, (509382), 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) [2022-01-18 09:05:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137045 states to 137045 states and 509382 transitions. [2022-01-18 09:05:16,449 INFO L78 Accepts]: Start accepts. Automaton has 137045 states and 509382 transitions. Word has length 63 [2022-01-18 09:05:16,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:05:16,449 INFO L470 AbstractCegarLoop]: Abstraction has 137045 states and 509382 transitions. [2022-01-18 09:05:16,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.2105263157894735) internal successors, (118), 19 states have internal predecessors, (118), 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) [2022-01-18 09:05:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 137045 states and 509382 transitions. [2022-01-18 09:05:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:05:16,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:05:16,526 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:05:16,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-01-18 09:05:16,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2022-01-18 09:05:16,726 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:05:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:05:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash -549374878, now seen corresponding path program 2 times [2022-01-18 09:05:16,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:05:16,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806255179] [2022-01-18 09:05:16,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:05:16,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:05:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:05:16,815 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 09:05:16,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:05:16,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806255179] [2022-01-18 09:05:16,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806255179] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:05:16,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723792742] [2022-01-18 09:05:16,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:05:16,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:05:16,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:05:16,820 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:05:16,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2022-01-18 09:05:16,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 09:05:16,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:05:16,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 32 conjunts are in the unsatisfiable core [2022-01-18 09:05:16,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:05:17,214 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:05:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:05:17,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:05:17,339 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-01-18 09:05:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 09:05:17,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723792742] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:05:17,466 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:05:17,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 20 [2022-01-18 09:05:17,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29543195] [2022-01-18 09:05:17,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:05:17,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:05:17,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:05:17,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:05:17,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:05:17,467 INFO L87 Difference]: Start difference. First operand 137045 states and 509382 transitions. Second operand has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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) [2022-01-18 09:05:20,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:05:20,187 INFO L93 Difference]: Finished difference Result 173270 states and 653917 transitions. [2022-01-18 09:05:20,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-18 09:05:20,188 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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 63 [2022-01-18 09:05:20,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:05:21,602 INFO L225 Difference]: With dead ends: 173270 [2022-01-18 09:05:21,602 INFO L226 Difference]: Without dead ends: 173125 [2022-01-18 09:05:21,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 116 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=275, Invalid=1131, Unknown=0, NotChecked=0, Total=1406 [2022-01-18 09:05:21,603 INFO L933 BasicCegarLoop]: 463 mSDtfsCounter, 1322 mSDsluCounter, 3383 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 3793 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 496 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:05:21,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1322 Valid, 3793 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 721 Invalid, 0 Unknown, 496 Unchecked, 0.7s Time] [2022-01-18 09:05:21,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173125 states. [2022-01-18 09:05:25,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173125 to 137926. [2022-01-18 09:05:25,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137926 states, 137907 states have (on average 3.7198691872058705) internal successors, (512996), 137925 states have internal predecessors, (512996), 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) [2022-01-18 09:05:26,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137926 states to 137926 states and 512996 transitions. [2022-01-18 09:05:26,587 INFO L78 Accepts]: Start accepts. Automaton has 137926 states and 512996 transitions. Word has length 63 [2022-01-18 09:05:26,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:05:26,587 INFO L470 AbstractCegarLoop]: Abstraction has 137926 states and 512996 transitions. [2022-01-18 09:05:26,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.2) internal successors, (124), 20 states have internal predecessors, (124), 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) [2022-01-18 09:05:26,587 INFO L276 IsEmpty]: Start isEmpty. Operand 137926 states and 512996 transitions. [2022-01-18 09:05:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:05:26,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:05:26,686 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:05:26,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2022-01-18 09:05:26,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:05:26,886 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:05:26,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:05:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1716988194, now seen corresponding path program 3 times [2022-01-18 09:05:26,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:05:26,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405356353] [2022-01-18 09:05:26,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:05:26,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:05:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:05:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 09:05:26,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:05:26,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405356353] [2022-01-18 09:05:26,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405356353] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:05:26,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299418920] [2022-01-18 09:05:26,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 09:05:26,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:05:26,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:05:26,958 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:05:26,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2022-01-18 09:05:27,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 09:05:27,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:05:27,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 47 conjunts are in the unsatisfiable core [2022-01-18 09:05:27,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:05:27,133 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:05:27,199 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 09:05:27,199 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 09:05:27,220 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-01-18 09:05:27,273 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2022-01-18 09:05:27,331 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:05:27,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-18 09:05:27,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299418920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:05:27,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-18 09:05:27,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 14 [2022-01-18 09:05:27,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307908468] [2022-01-18 09:05:27,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:05:27,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 09:05:27,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:05:27,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 09:05:27,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-01-18 09:05:27,332 INFO L87 Difference]: Start difference. First operand 137926 states and 512996 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2022-01-18 09:05:29,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:05:29,059 INFO L93 Difference]: Finished difference Result 141576 states and 526838 transitions. [2022-01-18 09:05:29,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 09:05:29,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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 63 [2022-01-18 09:05:29,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:05:30,334 INFO L225 Difference]: With dead ends: 141576 [2022-01-18 09:05:30,335 INFO L226 Difference]: Without dead ends: 141561 [2022-01-18 09:05:30,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2022-01-18 09:05:30,335 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 263 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 191 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:05:30,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 1158 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 477 Invalid, 0 Unknown, 191 Unchecked, 0.2s Time] [2022-01-18 09:05:30,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141561 states. [2022-01-18 09:05:34,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141561 to 138183. [2022-01-18 09:05:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138183 states, 138164 states have (on average 3.719782287716048) internal successors, (513940), 138182 states have internal predecessors, (513940), 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) [2022-01-18 09:05:35,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138183 states to 138183 states and 513940 transitions. [2022-01-18 09:05:35,081 INFO L78 Accepts]: Start accepts. Automaton has 138183 states and 513940 transitions. Word has length 63 [2022-01-18 09:05:35,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:05:35,082 INFO L470 AbstractCegarLoop]: Abstraction has 138183 states and 513940 transitions. [2022-01-18 09:05:35,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 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) [2022-01-18 09:05:35,082 INFO L276 IsEmpty]: Start isEmpty. Operand 138183 states and 513940 transitions. [2022-01-18 09:05:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:05:35,155 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:05:35,155 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:05:35,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2022-01-18 09:05:35,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:05:35,355 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:05:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:05:35,357 INFO L85 PathProgramCache]: Analyzing trace with hash 176181436, now seen corresponding path program 4 times [2022-01-18 09:05:35,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:05:35,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692337538] [2022-01-18 09:05:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:05:35,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:05:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:05:35,451 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 09:05:35,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:05:35,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692337538] [2022-01-18 09:05:35,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692337538] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:05:35,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580011739] [2022-01-18 09:05:35,451 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-18 09:05:35,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:05:35,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:05:35,453 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:05:35,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2022-01-18 09:05:35,589 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-18 09:05:35,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:05:35,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 09:05:35,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:05:35,850 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:05:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:05:35,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:05:36,722 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-01-18 09:05:36,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580011739] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:05:36,722 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:05:36,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 19 [2022-01-18 09:05:36,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817664144] [2022-01-18 09:05:36,722 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:05:36,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-18 09:05:36,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:05:36,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-18 09:05:36,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-01-18 09:05:36,723 INFO L87 Difference]: Start difference. First operand 138183 states and 513940 transitions. Second operand has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 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) [2022-01-18 09:05:40,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:05:40,656 INFO L93 Difference]: Finished difference Result 282515 states and 1004008 transitions. [2022-01-18 09:05:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-18 09:05:40,657 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 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 63 [2022-01-18 09:05:40,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:05:42,613 INFO L225 Difference]: With dead ends: 282515 [2022-01-18 09:05:42,613 INFO L226 Difference]: Without dead ends: 269177 [2022-01-18 09:05:42,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 113 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1309 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=773, Invalid=2767, Unknown=0, NotChecked=0, Total=3540 [2022-01-18 09:05:42,614 INFO L933 BasicCegarLoop]: 612 mSDtfsCounter, 2254 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 5927 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:05:42,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2254 Valid, 5927 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-18 09:05:43,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269177 states. [2022-01-18 09:05:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269177 to 134127. [2022-01-18 09:05:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134127 states, 134108 states have (on average 3.6959689205714796) internal successors, (495659), 134126 states have internal predecessors, (495659), 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) [2022-01-18 09:05:48,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134127 states to 134127 states and 495659 transitions. [2022-01-18 09:05:48,280 INFO L78 Accepts]: Start accepts. Automaton has 134127 states and 495659 transitions. Word has length 63 [2022-01-18 09:05:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:05:48,280 INFO L470 AbstractCegarLoop]: Abstraction has 134127 states and 495659 transitions. [2022-01-18 09:05:48,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 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) [2022-01-18 09:05:48,280 INFO L276 IsEmpty]: Start isEmpty. Operand 134127 states and 495659 transitions. [2022-01-18 09:05:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:05:48,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:05:48,352 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:05:48,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2022-01-18 09:05:48,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:05:48,553 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:05:48,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:05:48,553 INFO L85 PathProgramCache]: Analyzing trace with hash 990225334, now seen corresponding path program 2 times [2022-01-18 09:05:48,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:05:48,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910087301] [2022-01-18 09:05:48,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:05:48,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:05:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:05:48,634 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:05:48,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:05:48,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910087301] [2022-01-18 09:05:48,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910087301] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:05:48,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358925263] [2022-01-18 09:05:48,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:05:48,635 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:05:48,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:05:48,636 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:05:48,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2022-01-18 09:05:48,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 09:05:48,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:05:48,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-18 09:05:48,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:05:48,993 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:05:49,094 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 9 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:05:49,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:05:49,183 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-01-18 09:05:49,314 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:05:49,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358925263] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:05:49,314 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:05:49,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 11] total 24 [2022-01-18 09:05:49,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891404036] [2022-01-18 09:05:49,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:05:49,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 09:05:49,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:05:49,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 09:05:49,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2022-01-18 09:05:49,315 INFO L87 Difference]: Start difference. First operand 134127 states and 495659 transitions. Second operand has 24 states, 24 states have (on average 4.875) internal successors, (117), 24 states have internal predecessors, (117), 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) [2022-01-18 09:05:54,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:05:54,543 INFO L93 Difference]: Finished difference Result 181904 states and 682861 transitions. [2022-01-18 09:05:54,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-18 09:05:54,544 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.875) internal successors, (117), 24 states have internal predecessors, (117), 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 63 [2022-01-18 09:05:54,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:05:55,368 INFO L225 Difference]: With dead ends: 181904 [2022-01-18 09:05:55,368 INFO L226 Difference]: Without dead ends: 181774 [2022-01-18 09:05:55,368 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2188 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=988, Invalid=5018, Unknown=0, NotChecked=0, Total=6006 [2022-01-18 09:05:55,369 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 1908 mSDsluCounter, 8747 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1908 SdHoareTripleChecker+Valid, 9399 SdHoareTripleChecker+Invalid, 2886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1033 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-18 09:05:55,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1908 Valid, 9399 Invalid, 2886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 1673 Invalid, 0 Unknown, 1033 Unchecked, 1.7s Time] [2022-01-18 09:05:55,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181774 states. [2022-01-18 09:05:58,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181774 to 138559. [2022-01-18 09:05:59,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138559 states, 138540 states have (on average 3.715150858957702) internal successors, (514697), 138558 states have internal predecessors, (514697), 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) [2022-01-18 09:06:00,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138559 states to 138559 states and 514697 transitions. [2022-01-18 09:06:00,328 INFO L78 Accepts]: Start accepts. Automaton has 138559 states and 514697 transitions. Word has length 63 [2022-01-18 09:06:00,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:06:00,328 INFO L470 AbstractCegarLoop]: Abstraction has 138559 states and 514697 transitions. [2022-01-18 09:06:00,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.875) internal successors, (117), 24 states have internal predecessors, (117), 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) [2022-01-18 09:06:00,329 INFO L276 IsEmpty]: Start isEmpty. Operand 138559 states and 514697 transitions. [2022-01-18 09:06:00,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:06:00,424 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:06:00,424 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1] [2022-01-18 09:06:00,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2022-01-18 09:06:00,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:06:00,624 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:06:00,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:06:00,625 INFO L85 PathProgramCache]: Analyzing trace with hash -385061190, now seen corresponding path program 2 times [2022-01-18 09:06:00,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:06:00,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111482638] [2022-01-18 09:06:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:06:00,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:06:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:06:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:06:00,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:06:00,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111482638] [2022-01-18 09:06:00,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111482638] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:06:00,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090908972] [2022-01-18 09:06:00,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:06:00,754 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:06:00,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:06:00,755 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:06:00,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2022-01-18 09:06:00,868 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 09:06:00,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:06:00,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 38 conjunts are in the unsatisfiable core [2022-01-18 09:06:00,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:06:00,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:06:00,948 INFO L353 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-01-18 09:06:00,948 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-01-18 09:06:01,131 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 09:06:01,131 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 09:06:01,154 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:06:01,239 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-01-18 09:06:01,263 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-18 09:06:01,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:06:01,286 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1629 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1629) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 09:06:01,313 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 09:06:01,314 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 09:06:01,315 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 09:06:01,324 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 09:06:01,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-01-18 09:06:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 22 not checked. [2022-01-18 09:06:01,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090908972] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:06:01,845 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:06:01,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 24 [2022-01-18 09:06:01,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630161430] [2022-01-18 09:06:01,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:06:01,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-18 09:06:01,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:06:01,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-18 09:06:01,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=401, Unknown=1, NotChecked=42, Total=552 [2022-01-18 09:06:01,846 INFO L87 Difference]: Start difference. First operand 138559 states and 514697 transitions. Second operand has 24 states, 24 states have (on average 4.833333333333333) internal successors, (116), 24 states have internal predecessors, (116), 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) [2022-01-18 09:06:05,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:06:05,824 INFO L93 Difference]: Finished difference Result 188428 states and 703168 transitions. [2022-01-18 09:06:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 09:06:05,825 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.833333333333333) internal successors, (116), 24 states have internal predecessors, (116), 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 63 [2022-01-18 09:06:05,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:06:06,746 INFO L225 Difference]: With dead ends: 188428 [2022-01-18 09:06:06,746 INFO L226 Difference]: Without dead ends: 188304 [2022-01-18 09:06:06,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 118 SyntacticMatches, 14 SemanticMatches, 59 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1366 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=616, Invalid=2927, Unknown=1, NotChecked=116, Total=3660 [2022-01-18 09:06:06,747 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 1692 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 4427 SdHoareTripleChecker+Invalid, 4207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2181 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:06:06,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1692 Valid, 4427 Invalid, 4207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1823 Invalid, 0 Unknown, 2181 Unchecked, 1.1s Time] [2022-01-18 09:06:07,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188304 states. [2022-01-18 09:06:10,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188304 to 140617. [2022-01-18 09:06:10,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140617 states, 140598 states have (on average 3.7199889045363377) internal successors, (523023), 140616 states have internal predecessors, (523023), 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) [2022-01-18 09:06:11,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140617 states to 140617 states and 523023 transitions. [2022-01-18 09:06:11,751 INFO L78 Accepts]: Start accepts. Automaton has 140617 states and 523023 transitions. Word has length 63 [2022-01-18 09:06:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:06:11,752 INFO L470 AbstractCegarLoop]: Abstraction has 140617 states and 523023 transitions. [2022-01-18 09:06:11,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.833333333333333) internal successors, (116), 24 states have internal predecessors, (116), 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) [2022-01-18 09:06:11,752 INFO L276 IsEmpty]: Start isEmpty. Operand 140617 states and 523023 transitions. [2022-01-18 09:06:11,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:06:11,855 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:06:11,856 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:06:11,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2022-01-18 09:06:12,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2022-01-18 09:06:12,056 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:06:12,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:06:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash 603404559, now seen corresponding path program 1 times [2022-01-18 09:06:12,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:06:12,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135483051] [2022-01-18 09:06:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:06:12,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:06:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:06:12,127 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:06:12,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:06:12,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135483051] [2022-01-18 09:06:12,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135483051] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:06:12,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196121606] [2022-01-18 09:06:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:06:12,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:06:12,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:06:12,129 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:06:12,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-01-18 09:06:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:06:12,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-18 09:06:12,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:06:12,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:06:12,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:06:12,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:06:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:06:12,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196121606] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:06:12,717 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:06:12,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 20 [2022-01-18 09:06:12,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079513018] [2022-01-18 09:06:12,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:06:12,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-01-18 09:06:12,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:06:12,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-01-18 09:06:12,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2022-01-18 09:06:12,718 INFO L87 Difference]: Start difference. First operand 140617 states and 523023 transitions. Second operand has 20 states, 20 states have (on average 6.55) internal successors, (131), 20 states have internal predecessors, (131), 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) [2022-01-18 09:06:16,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:06:16,286 INFO L93 Difference]: Finished difference Result 233695 states and 836911 transitions. [2022-01-18 09:06:16,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-01-18 09:06:16,286 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.55) internal successors, (131), 20 states have internal predecessors, (131), 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 63 [2022-01-18 09:06:16,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:06:17,909 INFO L225 Difference]: With dead ends: 233695 [2022-01-18 09:06:17,909 INFO L226 Difference]: Without dead ends: 221462 [2022-01-18 09:06:17,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 112 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=546, Invalid=2004, Unknown=0, NotChecked=0, Total=2550 [2022-01-18 09:06:17,909 INFO L933 BasicCegarLoop]: 465 mSDtfsCounter, 2606 mSDsluCounter, 4300 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2606 SdHoareTripleChecker+Valid, 4653 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-18 09:06:17,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2606 Valid, 4653 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-18 09:06:18,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221462 states. [2022-01-18 09:06:21,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221462 to 124479. [2022-01-18 09:06:21,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124479 states, 124460 states have (on average 3.712108307890085) internal successors, (462009), 124478 states have internal predecessors, (462009), 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) [2022-01-18 09:06:23,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124479 states to 124479 states and 462009 transitions. [2022-01-18 09:06:23,018 INFO L78 Accepts]: Start accepts. Automaton has 124479 states and 462009 transitions. Word has length 63 [2022-01-18 09:06:23,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:06:23,018 INFO L470 AbstractCegarLoop]: Abstraction has 124479 states and 462009 transitions. [2022-01-18 09:06:23,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.55) internal successors, (131), 20 states have internal predecessors, (131), 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) [2022-01-18 09:06:23,019 INFO L276 IsEmpty]: Start isEmpty. Operand 124479 states and 462009 transitions. [2022-01-18 09:06:23,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:06:23,114 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:06:23,115 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:06:23,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2022-01-18 09:06:23,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2022-01-18 09:06:23,319 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:06:23,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:06:23,320 INFO L85 PathProgramCache]: Analyzing trace with hash 57671653, now seen corresponding path program 2 times [2022-01-18 09:06:23,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:06:23,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858567436] [2022-01-18 09:06:23,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:06:23,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:06:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:06:23,411 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:06:23,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:06:23,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858567436] [2022-01-18 09:06:23,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858567436] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:06:23,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458387424] [2022-01-18 09:06:23,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-18 09:06:23,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:06:23,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:06:23,413 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:06:23,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2022-01-18 09:06:23,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-18 09:06:23,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:06:23,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 34 conjunts are in the unsatisfiable core [2022-01-18 09:06:23,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:06:23,784 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:06:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 09:06:23,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:06:23,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38 [2022-01-18 09:06:24,033 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:06:24,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458387424] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:06:24,034 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:06:24,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 22 [2022-01-18 09:06:24,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804005997] [2022-01-18 09:06:24,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:06:24,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-18 09:06:24,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:06:24,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-18 09:06:24,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-01-18 09:06:24,035 INFO L87 Difference]: Start difference. First operand 124479 states and 462009 transitions. Second operand has 22 states, 22 states have (on average 6.136363636363637) internal successors, (135), 22 states have internal predecessors, (135), 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) [2022-01-18 09:06:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:06:27,548 INFO L93 Difference]: Finished difference Result 173655 states and 652541 transitions. [2022-01-18 09:06:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-01-18 09:06:27,548 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.136363636363637) internal successors, (135), 22 states have internal predecessors, (135), 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 63 [2022-01-18 09:06:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:06:28,253 INFO L225 Difference]: With dead ends: 173655 [2022-01-18 09:06:28,253 INFO L226 Difference]: Without dead ends: 173580 [2022-01-18 09:06:28,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=592, Invalid=3068, Unknown=0, NotChecked=0, Total=3660 [2022-01-18 09:06:28,254 INFO L933 BasicCegarLoop]: 358 mSDtfsCounter, 1620 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 3575 SdHoareTripleChecker+Invalid, 1561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 674 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-18 09:06:28,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 3575 Invalid, 1561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 724 Invalid, 0 Unknown, 674 Unchecked, 1.0s Time] [2022-01-18 09:06:29,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173580 states. [2022-01-18 09:06:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173580 to 125388. [2022-01-18 09:06:32,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125388 states, 125369 states have (on average 3.7148497634981537) internal successors, (465727), 125387 states have internal predecessors, (465727), 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) [2022-01-18 09:06:32,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125388 states to 125388 states and 465727 transitions. [2022-01-18 09:06:32,832 INFO L78 Accepts]: Start accepts. Automaton has 125388 states and 465727 transitions. Word has length 63 [2022-01-18 09:06:32,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:06:32,832 INFO L470 AbstractCegarLoop]: Abstraction has 125388 states and 465727 transitions. [2022-01-18 09:06:32,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.136363636363637) internal successors, (135), 22 states have internal predecessors, (135), 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) [2022-01-18 09:06:32,833 INFO L276 IsEmpty]: Start isEmpty. Operand 125388 states and 465727 transitions. [2022-01-18 09:06:32,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:06:32,906 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:06:32,906 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:06:32,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2022-01-18 09:06:33,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2022-01-18 09:06:33,108 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:06:33,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:06:33,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1027150339, now seen corresponding path program 3 times [2022-01-18 09:06:33,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:06:33,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481666578] [2022-01-18 09:06:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:06:33,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:06:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:06:33,182 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:06:33,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:06:33,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481666578] [2022-01-18 09:06:33,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481666578] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:06:33,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795260472] [2022-01-18 09:06:33,182 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 09:06:33,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:06:33,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:06:33,184 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:06:33,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2022-01-18 09:06:33,302 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-01-18 09:06:33,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:06:33,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 28 conjunts are in the unsatisfiable core [2022-01-18 09:06:33,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:06:33,475 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:06:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:06:33,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:06:33,675 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-01-18 09:06:33,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795260472] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 09:06:33,676 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 09:06:33,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 8] total 16 [2022-01-18 09:06:33,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713982094] [2022-01-18 09:06:33,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 09:06:33,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-01-18 09:06:33,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:06:33,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-01-18 09:06:33,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-01-18 09:06:33,677 INFO L87 Difference]: Start difference. First operand 125388 states and 465727 transitions. Second operand has 16 states, 16 states have (on average 6.4375) internal successors, (103), 16 states have internal predecessors, (103), 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) [2022-01-18 09:06:39,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:06:39,104 INFO L93 Difference]: Finished difference Result 250298 states and 902057 transitions. [2022-01-18 09:06:39,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-18 09:06:39,104 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.4375) internal successors, (103), 16 states have internal predecessors, (103), 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 63 [2022-01-18 09:06:39,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:06:41,304 INFO L225 Difference]: With dead ends: 250298 [2022-01-18 09:06:41,304 INFO L226 Difference]: Without dead ends: 244698 [2022-01-18 09:06:41,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 116 SyntacticMatches, 2 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=532, Invalid=2438, Unknown=0, NotChecked=0, Total=2970 [2022-01-18 09:06:41,305 INFO L933 BasicCegarLoop]: 646 mSDtfsCounter, 2048 mSDsluCounter, 5677 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 6220 SdHoareTripleChecker+Invalid, 1627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 168 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-01-18 09:06:41,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2048 Valid, 6220 Invalid, 1627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [203 Valid, 1256 Invalid, 0 Unknown, 168 Unchecked, 1.8s Time] [2022-01-18 09:06:41,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244698 states. [2022-01-18 09:06:45,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244698 to 117223. [2022-01-18 09:06:46,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117223 states, 117204 states have (on average 3.7118016449950515) internal successors, (435038), 117222 states have internal predecessors, (435038), 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) [2022-01-18 09:06:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117223 states to 117223 states and 435038 transitions. [2022-01-18 09:06:46,499 INFO L78 Accepts]: Start accepts. Automaton has 117223 states and 435038 transitions. Word has length 63 [2022-01-18 09:06:46,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:06:46,499 INFO L470 AbstractCegarLoop]: Abstraction has 117223 states and 435038 transitions. [2022-01-18 09:06:46,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 6.4375) internal successors, (103), 16 states have internal predecessors, (103), 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) [2022-01-18 09:06:46,499 INFO L276 IsEmpty]: Start isEmpty. Operand 117223 states and 435038 transitions. [2022-01-18 09:06:46,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:06:46,569 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:06:46,570 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 09:06:46,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2022-01-18 09:06:46,770 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2022-01-18 09:06:46,770 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:06:46,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:06:46,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1882984321, now seen corresponding path program 1 times [2022-01-18 09:06:46,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:06:46,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513187076] [2022-01-18 09:06:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:06:46,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:06:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:06:46,848 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-01-18 09:06:46,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:06:46,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513187076] [2022-01-18 09:06:46,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513187076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 09:06:46,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 09:06:46,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 09:06:46,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335863127] [2022-01-18 09:06:46,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 09:06:46,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 09:06:46,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 09:06:46,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 09:06:46,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-01-18 09:06:46,849 INFO L87 Difference]: Start difference. First operand 117223 states and 435038 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2022-01-18 09:06:48,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 09:06:48,178 INFO L93 Difference]: Finished difference Result 104821 states and 388501 transitions. [2022-01-18 09:06:48,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 09:06:48,179 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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 63 [2022-01-18 09:06:48,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 09:06:48,581 INFO L225 Difference]: With dead ends: 104821 [2022-01-18 09:06:48,582 INFO L226 Difference]: Without dead ends: 103793 [2022-01-18 09:06:48,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-01-18 09:06:48,582 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 448 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 09:06:48,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 881 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 09:06:48,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103793 states. [2022-01-18 09:06:50,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103793 to 101075. [2022-01-18 09:06:51,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101075 states, 101059 states have (on average 3.7110697711237988) internal successors, (375037), 101074 states have internal predecessors, (375037), 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) [2022-01-18 09:06:51,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101075 states to 101075 states and 375037 transitions. [2022-01-18 09:06:51,489 INFO L78 Accepts]: Start accepts. Automaton has 101075 states and 375037 transitions. Word has length 63 [2022-01-18 09:06:51,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 09:06:51,489 INFO L470 AbstractCegarLoop]: Abstraction has 101075 states and 375037 transitions. [2022-01-18 09:06:51,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 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) [2022-01-18 09:06:51,489 INFO L276 IsEmpty]: Start isEmpty. Operand 101075 states and 375037 transitions. [2022-01-18 09:06:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-18 09:06:51,559 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 09:06:51,559 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1] [2022-01-18 09:06:51,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-18 09:06:51,559 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-18 09:06:51,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 09:06:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash -739586320, now seen corresponding path program 3 times [2022-01-18 09:06:51,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 09:06:51,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463028814] [2022-01-18 09:06:51,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 09:06:51,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 09:06:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 09:06:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-18 09:06:51,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 09:06:51,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463028814] [2022-01-18 09:06:51,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463028814] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 09:06:51,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262790528] [2022-01-18 09:06:51,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-18 09:06:51,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:06:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 09:06:51,696 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-18 09:06:51,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2022-01-18 09:06:51,943 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-18 09:06:51,943 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-18 09:06:51,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 43 conjunts are in the unsatisfiable core [2022-01-18 09:06:51,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 09:06:51,978 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-18 09:06:52,030 INFO L353 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-01-18 09:06:52,031 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-01-18 09:06:52,133 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-18 09:06:52,133 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-18 09:06:52,173 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-18 09:06:52,295 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-01-18 09:06:52,317 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-01-18 09:06:52,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 09:06:52,346 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1802 (Array Int Int))) (not (= (mod (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t~1#1.base| v_ArrVal_1802) |c_thr1Thread3of3ForFork0_~#l~0#1.base|) |c_thr1Thread3of3ForFork0_~#l~0#1.offset|) 4294967296) (mod c_~s~0 4294967296)))) is different from false [2022-01-18 09:06:52,399 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-18 09:06:52,399 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 24 [2022-01-18 09:06:52,403 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 33 [2022-01-18 09:06:52,407 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 Received shutdown request... [2022-01-18 09:06:52,829 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 09:06:52,829 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-18 09:06:52,830 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-18 09:06:52,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2022-01-18 09:06:52,862 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-18 09:06:53,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 09:06:53,031 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was analyzing trace of length 64 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. [2022-01-18 09:06:53,031 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-18 09:06:53,031 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-18 09:06:53,031 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-18 09:06:53,031 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-18 09:06:53,031 INFO L732 BasicCegarLoop]: Path program histogram: [5, 5, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-01-18 09:06:53,031 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT (1/2) [2022-01-18 09:06:53,032 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 09:06:53,032 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-18 09:06:53,032 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 09:06:53,032 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing initial abstraction,while executing BasicCegarLoop. [2022-01-18 09:06:53,032 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 09:06:53,033 INFO L732 BasicCegarLoop]: Path program histogram: [] [2022-01-18 09:06:53,033 INFO L308 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2022-01-18 09:06:53,033 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-01-18 09:06:53,033 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 09:06:53,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 09:06:53 BasicIcfg [2022-01-18 09:06:53,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 09:06:53,036 INFO L158 Benchmark]: Toolchain (without parser) took 665429.89ms. Allocated memory was 398.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 343.8MB in the beginning and 12.4GB in the end (delta: -12.1GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2022-01-18 09:06:53,036 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 398.5MB. Free memory was 361.2MB in the beginning and 361.2MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 09:06:53,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.24ms. Allocated memory is still 398.5MB. Free memory was 343.6MB in the beginning and 361.8MB in the end (delta: -18.2MB). Peak memory consumption was 15.2MB. Max. memory is 16.0GB. [2022-01-18 09:06:53,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.99ms. Allocated memory is still 398.5MB. Free memory was 361.8MB in the beginning and 359.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:06:53,036 INFO L158 Benchmark]: Boogie Preprocessor took 35.60ms. Allocated memory is still 398.5MB. Free memory was 359.7MB in the beginning and 358.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 09:06:53,036 INFO L158 Benchmark]: RCFGBuilder took 434.19ms. Allocated memory is still 398.5MB. Free memory was 358.1MB in the beginning and 341.4MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-18 09:06:53,036 INFO L158 Benchmark]: TraceAbstraction took 664528.46ms. Allocated memory was 398.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 340.8MB in the beginning and 12.4GB in the end (delta: -12.1GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. [2022-01-18 09:06:53,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 398.5MB. Free memory was 361.2MB in the beginning and 361.2MB in the end (delta: 83.8kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 391.24ms. Allocated memory is still 398.5MB. Free memory was 343.6MB in the beginning and 361.8MB in the end (delta: -18.2MB). Peak memory consumption was 15.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 32.99ms. Allocated memory is still 398.5MB. Free memory was 361.8MB in the beginning and 359.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 35.60ms. Allocated memory is still 398.5MB. Free memory was 359.7MB in the beginning and 358.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 434.19ms. Allocated memory is still 398.5MB. Free memory was 358.1MB in the beginning and 341.4MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 664528.46ms. Allocated memory was 398.5MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 340.8MB in the beginning and 12.4GB in the end (delta: -12.1GB). Peak memory consumption was 3.5GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 718]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 64 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. - TimeoutResultAtElement [Line: 718]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was analyzing trace of length 64 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 0ms.. - TimeoutResultAtElement [Line: 725]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing initial abstraction,while executing BasicCegarLoop. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 177 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 177 mSDsluCounter, 536 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 276 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 124 IncrementalHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 272 mSDtfsCounter, 124 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=524occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 150 NumberOfCodeBlocks, 150 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 103 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 56.4s, OverallIterations: 20, TraceHistogramMax: 3, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 35.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16025 SdHoareTripleChecker+Valid, 11.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16025 mSDsluCounter, 45397 SdHoareTripleChecker+Invalid, 10.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 10371 IncrementalHoareTripleChecker+Unchecked, 40716 mSDsCounter, 1816 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14101 IncrementalHoareTripleChecker+Invalid, 26288 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1816 mSolverCounterUnsat, 5161 mSDtfsCounter, 14101 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2571 GetRequests, 1665 SyntacticMatches, 113 SemanticMatches, 793 ConstructedPredicates, 14 IntricatePredicates, 13 DeprecatedPredicates, 16514 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9412occurred in iteration=0, InterpolantAutomatonStates: 682, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 38010 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 2036 NumberOfCodeBlocks, 1997 NumberOfCodeBlocksAsserted, 47 NumberOfCheckSat, 2829 ConstructedInterpolants, 232 QuantifiedInterpolants, 28150 SizeOfPredicates, 200 NumberOfNonLiveVariables, 3274 ConjunctsInSsa, 596 ConjunctsInUnsatCore, 52 InterpolantComputations, 5 PerfectInterpolantSequences, 144/762 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 119 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 606.5s, OverallIterations: 34, TraceHistogramMax: 4, PathProgramHistogramMax: 5, EmptinessCheckTime: 2.7s, AutomataDifference: 371.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48804 SdHoareTripleChecker+Valid, 34.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 48804 mSDsluCounter, 128188 SdHoareTripleChecker+Invalid, 30.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 36803 IncrementalHoareTripleChecker+Unchecked, 117746 mSDsCounter, 5274 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42336 IncrementalHoareTripleChecker+Invalid, 84413 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5274 mSolverCounterUnsat, 13341 mSDtfsCounter, 42336 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4276 GetRequests, 2539 SyntacticMatches, 174 SemanticMatches, 1563 ConstructedPredicates, 18 IntricatePredicates, 13 DeprecatedPredicates, 40794 ImplicationChecksByTransitivity, 213.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184302occurred in iteration=8, InterpolantAutomatonStates: 1381, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 196.9s AutomataMinimizationTime, 33 MinimizatonAttempts, 2712923 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 21.7s InterpolantComputationTime, 3249 NumberOfCodeBlocks, 3223 NumberOfCodeBlocksAsserted, 74 NumberOfCheckSat, 4502 ConstructedInterpolants, 372 QuantifiedInterpolants, 45072 SizeOfPredicates, 288 NumberOfNonLiveVariables, 4965 ConjunctsInSsa, 881 ConjunctsInUnsatCore, 80 InterpolantComputations, 10 PerfectInterpolantSequences, 418/1371 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 87 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 103 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2727occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 119 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown