/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/01b_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 08:32:39,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 08:32:39,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 08:32:39,146 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-18 08:32:39,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-18 08:32:39,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-18 08:32:39,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-18 08:32:39,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-18 08:32:39,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-18 08:32:39,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-18 08:32:39,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-18 08:32:39,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-18 08:32:39,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-18 08:32:39,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-18 08:32:39,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-18 08:32:39,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-18 08:32:39,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-18 08:32:39,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-18 08:32:39,172 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-18 08:32:39,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-18 08:32:39,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-18 08:32:39,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-18 08:32:39,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-18 08:32:39,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-18 08:32:39,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-18 08:32:39,184 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 08:32:39,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 08:32:39,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 08:32:39,190 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 08:32:39,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 08:32:39,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 08:32:39,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 08:32:39,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 08:32:39,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 08:32:39,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 08:32:39,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 08:32:39,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 08:32:39,205 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 08:32:39,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 08:32:39,205 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 08:32:39,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 08:32:39,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 08:32:39,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 08:32:39,207 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 08:32:39,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 08:32:39,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:32:39,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 08:32:39,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 08:32:39,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 08:32:39,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 08:32:39,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 08:32:39,208 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 08:32:39,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 08:32:39,208 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 08:32:39,208 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 08:32:39,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 08:32:39,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 08:32:39,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 08:32:39,364 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-18 08:32:39,365 INFO L275 PluginConnector]: CDTParser initialized [2022-01-18 08:32:39,366 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01b_inc.i [2022-01-18 08:32:39,401 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e5907fc/35ee952151d1454189b42924aa0d1b65/FLAGa01a69e6d [2022-01-18 08:32:39,822 INFO L306 CDTParser]: Found 1 translation units. [2022-01-18 08:32:39,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01b_inc.i [2022-01-18 08:32:39,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e5907fc/35ee952151d1454189b42924aa0d1b65/FLAGa01a69e6d [2022-01-18 08:32:40,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17e5907fc/35ee952151d1454189b42924aa0d1b65 [2022-01-18 08:32:40,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 08:32:40,179 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-18 08:32:40,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-18 08:32:40,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-18 08:32:40,182 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-18 08:32:40,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c1a9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40, skipping insertion in model container [2022-01-18 08:32:40,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-18 08:32:40,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-18 08:32:40,351 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 08:32:40,412 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/01b_inc.i[31005,31018] [2022-01-18 08:32:40,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:32:40,421 INFO L203 MainTranslator]: Completed pre-run [2022-01-18 08:32:40,433 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-18 08:32:40,458 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/01b_inc.i[31005,31018] [2022-01-18 08:32:40,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-18 08:32:40,481 INFO L208 MainTranslator]: Completed translation [2022-01-18 08:32:40,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40 WrapperNode [2022-01-18 08:32:40,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-18 08:32:40,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 08:32:40,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 08:32:40,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 08:32:40,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,517 INFO L137 Inliner]: procedures = 173, calls = 20, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 62 [2022-01-18 08:32:40,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 08:32:40,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 08:32:40,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 08:32:40,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 08:32:40,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 08:32:40,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 08:32:40,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 08:32:40,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 08:32:40,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (1/1) ... [2022-01-18 08:32:40,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 08:32:40,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:32:40,577 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 08:32:40,596 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 08:32:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-18 08:32:40,605 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-18 08:32:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-18 08:32:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-18 08:32:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-18 08:32:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-18 08:32:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-18 08:32:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-18 08:32:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-18 08:32:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 08:32:40,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 08:32:40,608 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 08:32:40,713 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 08:32:40,714 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 08:32:40,813 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 08:32:40,838 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 08:32:40,838 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-18 08:32:40,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:32:40 BoogieIcfgContainer [2022-01-18 08:32:40,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 08:32:40,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 08:32:40,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 08:32:40,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 08:32:40,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.01 08:32:40" (1/3) ... [2022-01-18 08:32:40,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79de399b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:32:40, skipping insertion in model container [2022-01-18 08:32:40,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.01 08:32:40" (2/3) ... [2022-01-18 08:32:40,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79de399b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 08:32:40, skipping insertion in model container [2022-01-18 08:32:40,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 08:32:40" (3/3) ... [2022-01-18 08:32:40,845 INFO L111 eAbstractionObserver]: Analyzing ICFG 01b_inc.i [2022-01-18 08:32:40,848 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 08:32:40,848 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 08:32:40,848 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 08:32:40,848 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 08:32:40,870 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,871 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,871 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,871 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,871 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,871 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,871 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,871 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,872 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,872 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,872 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,872 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,872 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,872 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,873 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,873 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,873 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,873 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,873 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,873 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,874 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,875 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,875 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,875 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,875 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,876 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,876 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,876 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,876 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,876 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,876 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,878 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,879 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:40,880 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:32:40,907 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:32:40,912 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 08:32:40,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-18 08:32:40,918 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 44 transitions, 93 flow [2022-01-18 08:32:40,937 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 181 states, 178 states have (on average 1.853932584269663) internal successors, (330), 180 states have internal predecessors, (330), 0 states have call successors, (0), 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 08:32:40,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 181 states, 178 states have (on average 1.853932584269663) internal successors, (330), 180 states have internal predecessors, (330), 0 states have call successors, (0), 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 08:32:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-18 08:32:40,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:40,945 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 08:32:40,946 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:40,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1538553645, now seen corresponding path program 1 times [2022-01-18 08:32:40,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:40,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700955446] [2022-01-18 08:32:40,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:40,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:41,178 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 08:32:41,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:41,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700955446] [2022-01-18 08:32:41,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700955446] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:41,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:41,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:32:41,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864247656] [2022-01-18 08:32:41,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:41,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:32:41,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:41,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:32:41,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:32:41,215 INFO L87 Difference]: Start difference. First operand has 181 states, 178 states have (on average 1.853932584269663) internal successors, (330), 180 states have internal predecessors, (330), 0 states have call successors, (0), 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 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:41,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:41,297 INFO L93 Difference]: Finished difference Result 105 states and 171 transitions. [2022-01-18 08:32:41,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 08:32:41,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:41,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:41,306 INFO L225 Difference]: With dead ends: 105 [2022-01-18 08:32:41,306 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:32:41,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:41,310 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 33 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:41,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 109 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:32:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:32:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:32:41,338 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 08:32:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:32:41,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2022-01-18 08:32:41,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:41,341 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:32:41,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:41,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:32:41,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:32:41,343 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-18 08:32:41,344 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-18 08:32:41,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 08:32:41,346 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:32:41,346 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE (1/2) [2022-01-18 08:32:41,354 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:32:41,355 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 08:32:41,355 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:32:41,356 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 44 transitions, 93 flow [2022-01-18 08:32:41,362 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 132 states, 130 states have (on average 1.7692307692307692) internal successors, (230), 131 states have internal predecessors, (230), 0 states have call successors, (0), 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 08:32:41,370 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 130 states have (on average 1.7692307692307692) internal successors, (230), 131 states have internal predecessors, (230), 0 states have call successors, (0), 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 08:32:41,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-18 08:32:41,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:41,373 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:32:41,373 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:32:41,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:41,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1465134151, now seen corresponding path program 1 times [2022-01-18 08:32:41,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:41,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267863435] [2022-01-18 08:32:41,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:41,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:32:41,400 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:32:41,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:32:41,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:32:41,430 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:32:41,430 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:32:41,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 08:32:41,431 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:32:41,431 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:32:41,431 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:32:41,432 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 08:32:41,439 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,439 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,439 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,439 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,439 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,439 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,439 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,440 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,441 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,442 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,443 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,443 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,443 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,443 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,444 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,445 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,446 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,446 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,446 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,446 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,446 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,446 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,447 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,448 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,448 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,448 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,448 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,448 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,448 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,449 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,449 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,449 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,449 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,449 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,449 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,450 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,450 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,450 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,450 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,450 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,450 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,450 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,451 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,451 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,451 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,451 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,451 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,451 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,455 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:41,456 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:32:41,459 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:32:41,460 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 08:32:41,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-18 08:32:41,461 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 59 transitions, 130 flow [2022-01-18 08:32:41,544 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2741 states, 2733 states have (on average 2.9048664471276986) internal successors, (7939), 2740 states have internal predecessors, (7939), 0 states have call successors, (0), 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 08:32:41,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 2741 states, 2733 states have (on average 2.9048664471276986) internal successors, (7939), 2740 states have internal predecessors, (7939), 0 states have call successors, (0), 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 08:32:41,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-18 08:32:41,552 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:41,553 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 08:32:41,553 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:41,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:41,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1378291579, now seen corresponding path program 1 times [2022-01-18 08:32:41,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:41,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218424335] [2022-01-18 08:32:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:41,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:41,638 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 08:32:41,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:41,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218424335] [2022-01-18 08:32:41,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218424335] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:41,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:41,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:32:41,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368554934] [2022-01-18 08:32:41,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:41,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:32:41,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:41,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:32:41,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:32:41,647 INFO L87 Difference]: Start difference. First operand has 2741 states, 2733 states have (on average 2.9048664471276986) internal successors, (7939), 2740 states have internal predecessors, (7939), 0 states have call successors, (0), 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 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:41,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:41,789 INFO L93 Difference]: Finished difference Result 1914 states and 5052 transitions. [2022-01-18 08:32:41,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:32:41,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:41,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:41,826 INFO L225 Difference]: With dead ends: 1914 [2022-01-18 08:32:41,826 INFO L226 Difference]: Without dead ends: 1537 [2022-01-18 08:32:41,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:41,827 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 93 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:41,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 157 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:41,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1537 states. [2022-01-18 08:32:41,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1537 to 1249. [2022-01-18 08:32:41,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1246 states have (on average 2.625200642054575) internal successors, (3271), 1248 states have internal predecessors, (3271), 0 states have call successors, (0), 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 08:32:41,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 3271 transitions. [2022-01-18 08:32:41,961 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 3271 transitions. Word has length 28 [2022-01-18 08:32:41,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:41,961 INFO L470 AbstractCegarLoop]: Abstraction has 1249 states and 3271 transitions. [2022-01-18 08:32:41,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:41,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 3271 transitions. [2022-01-18 08:32:41,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-18 08:32:41,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:41,966 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:32:41,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 08:32:41,966 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:41,967 INFO L85 PathProgramCache]: Analyzing trace with hash -2061461654, now seen corresponding path program 1 times [2022-01-18 08:32:41,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:41,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040466348] [2022-01-18 08:32:41,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:41,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:42,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:42,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:42,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040466348] [2022-01-18 08:32:42,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040466348] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:42,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:42,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:32:42,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617032688] [2022-01-18 08:32:42,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:42,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:32:42,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:42,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:32:42,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:32:42,086 INFO L87 Difference]: Start difference. First operand 1249 states and 3271 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:32:42,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:42,179 INFO L93 Difference]: Finished difference Result 1601 states and 4083 transitions. [2022-01-18 08:32:42,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:32:42,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-18 08:32:42,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:42,187 INFO L225 Difference]: With dead ends: 1601 [2022-01-18 08:32:42,187 INFO L226 Difference]: Without dead ends: 1497 [2022-01-18 08:32:42,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:42,189 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 85 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:42,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 162 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:42,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-01-18 08:32:42,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1209. [2022-01-18 08:32:42,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1206 states have (on average 2.5903814262023217) internal successors, (3124), 1208 states have internal predecessors, (3124), 0 states have call successors, (0), 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 08:32:42,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 3124 transitions. [2022-01-18 08:32:42,239 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 3124 transitions. Word has length 35 [2022-01-18 08:32:42,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:42,239 INFO L470 AbstractCegarLoop]: Abstraction has 1209 states and 3124 transitions. [2022-01-18 08:32:42,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:32:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 3124 transitions. [2022-01-18 08:32:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:42,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:42,247 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:42,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 08:32:42,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:42,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1757014773, now seen corresponding path program 1 times [2022-01-18 08:32:42,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:42,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466541258] [2022-01-18 08:32:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:42,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:42,360 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:32:42,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:42,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466541258] [2022-01-18 08:32:42,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466541258] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-18 08:32:42,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337063054] [2022-01-18 08:32:42,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:42,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:32:42,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 08:32:42,362 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 08:32:42,369 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 08:32:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:42,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-18 08:32:42,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-18 08:32:42,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:32:42,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-18 08:32:42,854 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:32:42,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337063054] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-18 08:32:42,854 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-18 08:32:42,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 14 [2022-01-18 08:32:42,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610071406] [2022-01-18 08:32:42,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-18 08:32:42,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-18 08:32:42,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-18 08:32:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2022-01-18 08:32:42,856 INFO L87 Difference]: Start difference. First operand 1209 states and 3124 transitions. Second operand has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 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 08:32:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:43,310 INFO L93 Difference]: Finished difference Result 2473 states and 6198 transitions. [2022-01-18 08:32:43,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-18 08:32:43,310 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:43,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:43,314 INFO L225 Difference]: With dead ends: 2473 [2022-01-18 08:32:43,314 INFO L226 Difference]: Without dead ends: 1342 [2022-01-18 08:32:43,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2022-01-18 08:32:43,315 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 407 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:43,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [407 Valid, 756 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 08:32:43,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2022-01-18 08:32:43,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 918. [2022-01-18 08:32:43,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 914 states have (on average 2.474835886214442) internal successors, (2262), 917 states have internal predecessors, (2262), 0 states have call successors, (0), 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 08:32:43,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 2262 transitions. [2022-01-18 08:32:43,333 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 2262 transitions. Word has length 41 [2022-01-18 08:32:43,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:43,333 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 2262 transitions. [2022-01-18 08:32:43,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.857142857142857) internal successors, (82), 15 states have internal predecessors, (82), 0 states have call successors, (0), 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 08:32:43,333 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 2262 transitions. [2022-01-18 08:32:43,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:43,334 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:43,334 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:43,353 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 08:32:43,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-18 08:32:43,550 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:43,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:43,551 INFO L85 PathProgramCache]: Analyzing trace with hash -101201419, now seen corresponding path program 1 times [2022-01-18 08:32:43,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:43,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790195226] [2022-01-18 08:32:43,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:43,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:43,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-18 08:32:43,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:43,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790195226] [2022-01-18 08:32:43,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790195226] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:43,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:43,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:32:43,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310663263] [2022-01-18 08:32:43,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:43,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:32:43,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:43,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:32:43,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:32:43,633 INFO L87 Difference]: Start difference. First operand 918 states and 2262 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 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 08:32:43,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:43,696 INFO L93 Difference]: Finished difference Result 1230 states and 3007 transitions. [2022-01-18 08:32:43,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-18 08:32:43,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:43,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:43,701 INFO L225 Difference]: With dead ends: 1230 [2022-01-18 08:32:43,701 INFO L226 Difference]: Without dead ends: 1079 [2022-01-18 08:32:43,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:32:43,701 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 68 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:43,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 190 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:32:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2022-01-18 08:32:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 863. [2022-01-18 08:32:43,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 859 states have (on average 2.4563445867287546) internal successors, (2110), 862 states have internal predecessors, (2110), 0 states have call successors, (0), 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 08:32:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 2110 transitions. [2022-01-18 08:32:43,718 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 2110 transitions. Word has length 41 [2022-01-18 08:32:43,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:43,718 INFO L470 AbstractCegarLoop]: Abstraction has 863 states and 2110 transitions. [2022-01-18 08:32:43,718 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 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 08:32:43,718 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 2110 transitions. [2022-01-18 08:32:43,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:43,719 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:43,719 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:43,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-18 08:32:43,719 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash -979726065, now seen corresponding path program 2 times [2022-01-18 08:32:43,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:43,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311049297] [2022-01-18 08:32:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:43,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:43,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:43,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311049297] [2022-01-18 08:32:43,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311049297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:43,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:43,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:32:43,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879792213] [2022-01-18 08:32:43,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:43,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:32:43,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:43,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:32:43,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:43,794 INFO L87 Difference]: Start difference. First operand 863 states and 2110 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:43,910 INFO L93 Difference]: Finished difference Result 823 states and 1963 transitions. [2022-01-18 08:32:43,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 08:32:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:43,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:43,912 INFO L225 Difference]: With dead ends: 823 [2022-01-18 08:32:43,912 INFO L226 Difference]: Without dead ends: 250 [2022-01-18 08:32:43,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-01-18 08:32:43,912 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 131 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:43,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 317 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:43,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-01-18 08:32:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2022-01-18 08:32:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 2.0160642570281126) internal successors, (502), 249 states have internal predecessors, (502), 0 states have call successors, (0), 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 08:32:43,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 502 transitions. [2022-01-18 08:32:43,917 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 502 transitions. Word has length 41 [2022-01-18 08:32:43,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:43,917 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 502 transitions. [2022-01-18 08:32:43,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 502 transitions. [2022-01-18 08:32:43,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:43,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:43,917 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:43,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-18 08:32:43,918 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:43,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:43,918 INFO L85 PathProgramCache]: Analyzing trace with hash -56540097, now seen corresponding path program 3 times [2022-01-18 08:32:43,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:43,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435511352] [2022-01-18 08:32:43,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:43,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:43,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:43,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:43,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435511352] [2022-01-18 08:32:43,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435511352] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:43,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:43,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:32:43,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361071117] [2022-01-18 08:32:43,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:43,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:32:43,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:43,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:32:43,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:32:43,971 INFO L87 Difference]: Start difference. First operand 250 states and 502 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:43,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:43,997 INFO L93 Difference]: Finished difference Result 210 states and 419 transitions. [2022-01-18 08:32:43,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:32:43,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:43,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:43,998 INFO L225 Difference]: With dead ends: 210 [2022-01-18 08:32:43,998 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:32:43,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:32:43,998 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 40 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:43,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 164 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:32:43,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:32:43,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:32:43,999 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 08:32:43,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:32:43,999 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2022-01-18 08:32:43,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:43,999 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:32:43,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:44,000 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:32:44,000 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:32:44,000 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-18 08:32:44,000 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-18 08:32:44,000 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-18 08:32:44,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-18 08:32:44,000 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-01-18 08:32:44,000 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE (1/2) [2022-01-18 08:32:44,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:32:44,001 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 08:32:44,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:32:44,002 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 59 transitions, 130 flow [2022-01-18 08:32:44,027 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1686 states, 1682 states have (on average 2.808561236623068) internal successors, (4724), 1685 states have internal predecessors, (4724), 0 states have call successors, (0), 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 08:32:44,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1682 states have (on average 2.808561236623068) internal successors, (4724), 1685 states have internal predecessors, (4724), 0 states have call successors, (0), 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 08:32:44,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-01-18 08:32:44,030 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:44,031 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:32:44,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:32:44,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:44,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1144847341, now seen corresponding path program 1 times [2022-01-18 08:32:44,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:44,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018892874] [2022-01-18 08:32:44,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:44,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:32:44,037 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:32:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:32:44,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:32:44,044 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:32:44,044 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:32:44,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-18 08:32:44,044 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:32:44,044 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:32:44,044 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:32:44,044 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,050 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,051 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,052 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,053 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,054 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,055 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,056 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,057 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,058 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,059 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:32:44,060 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 08:32:44,060 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:32:44,061 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:32:44,061 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 08:32:44,062 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 08:32:44,062 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 74 transitions, 169 flow [2022-01-18 08:32:44,806 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 40111 states, 40092 states have (on average 3.9196348398683027) internal successors, (157146), 40110 states have internal predecessors, (157146), 0 states have call successors, (0), 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 08:32:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 40111 states, 40092 states have (on average 3.9196348398683027) internal successors, (157146), 40110 states have internal predecessors, (157146), 0 states have call successors, (0), 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 08:32:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-18 08:32:44,869 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:44,869 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 08:32:44,869 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:44,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:44,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1314245879, now seen corresponding path program 1 times [2022-01-18 08:32:44,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:44,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026453636] [2022-01-18 08:32:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:44,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:45,067 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 08:32:45,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:45,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026453636] [2022-01-18 08:32:45,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026453636] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:45,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:45,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:32:45,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523128397] [2022-01-18 08:32:45,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:45,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:32:45,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:45,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:32:45,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:32:45,128 INFO L87 Difference]: Start difference. First operand has 40111 states, 40092 states have (on average 3.9196348398683027) internal successors, (157146), 40110 states have internal predecessors, (157146), 0 states have call successors, (0), 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 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:45,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:45,593 INFO L93 Difference]: Finished difference Result 33222 states and 121377 transitions. [2022-01-18 08:32:45,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:32:45,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:45,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:45,857 INFO L225 Difference]: With dead ends: 33222 [2022-01-18 08:32:45,858 INFO L226 Difference]: Without dead ends: 30953 [2022-01-18 08:32:45,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:45,859 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 154 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:45,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 210 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30953 states. [2022-01-18 08:32:46,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30953 to 22079. [2022-01-18 08:32:46,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22079 states, 22072 states have (on average 3.6874320405944183) internal successors, (81389), 22078 states have internal predecessors, (81389), 0 states have call successors, (0), 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 08:32:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22079 states to 22079 states and 81389 transitions. [2022-01-18 08:32:46,800 INFO L78 Accepts]: Start accepts. Automaton has 22079 states and 81389 transitions. Word has length 28 [2022-01-18 08:32:46,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:46,800 INFO L470 AbstractCegarLoop]: Abstraction has 22079 states and 81389 transitions. [2022-01-18 08:32:46,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:32:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 22079 states and 81389 transitions. [2022-01-18 08:32:46,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-18 08:32:46,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:46,801 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:32:46,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-18 08:32:46,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:46,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:46,801 INFO L85 PathProgramCache]: Analyzing trace with hash -465754956, now seen corresponding path program 1 times [2022-01-18 08:32:46,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:46,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505927184] [2022-01-18 08:32:46,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:46,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:46,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:46,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:46,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505927184] [2022-01-18 08:32:46,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505927184] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:46,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:46,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:32:46,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013812759] [2022-01-18 08:32:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:46,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:32:46,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:46,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:32:46,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:32:46,858 INFO L87 Difference]: Start difference. First operand 22079 states and 81389 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:32:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:47,264 INFO L93 Difference]: Finished difference Result 34497 states and 124474 transitions. [2022-01-18 08:32:47,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:32:47,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-01-18 08:32:47,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:47,449 INFO L225 Difference]: With dead ends: 34497 [2022-01-18 08:32:47,449 INFO L226 Difference]: Without dead ends: 33929 [2022-01-18 08:32:47,450 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:47,452 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 148 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:47,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 209 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:47,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33929 states. [2022-01-18 08:32:48,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33929 to 24335. [2022-01-18 08:32:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24335 states, 24328 states have (on average 3.66910555738244) internal successors, (89262), 24334 states have internal predecessors, (89262), 0 states have call successors, (0), 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 08:32:48,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24335 states to 24335 states and 89262 transitions. [2022-01-18 08:32:48,303 INFO L78 Accepts]: Start accepts. Automaton has 24335 states and 89262 transitions. Word has length 35 [2022-01-18 08:32:48,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:48,303 INFO L470 AbstractCegarLoop]: Abstraction has 24335 states and 89262 transitions. [2022-01-18 08:32:48,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 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 08:32:48,304 INFO L276 IsEmpty]: Start isEmpty. Operand 24335 states and 89262 transitions. [2022-01-18 08:32:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:48,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:48,306 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:48,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-18 08:32:48,307 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:48,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:48,307 INFO L85 PathProgramCache]: Analyzing trace with hash -534519441, now seen corresponding path program 1 times [2022-01-18 08:32:48,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:48,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738331089] [2022-01-18 08:32:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:48,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:48,372 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:48,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:48,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738331089] [2022-01-18 08:32:48,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738331089] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:48,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:48,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:32:48,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539130462] [2022-01-18 08:32:48,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:48,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:32:48,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:48,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:32:48,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:48,373 INFO L87 Difference]: Start difference. First operand 24335 states and 89262 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:48,855 INFO L93 Difference]: Finished difference Result 36484 states and 129090 transitions. [2022-01-18 08:32:48,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:32:48,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:48,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:48,966 INFO L225 Difference]: With dead ends: 36484 [2022-01-18 08:32:48,966 INFO L226 Difference]: Without dead ends: 35052 [2022-01-18 08:32:48,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:32:48,966 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 213 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:48,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 459 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 08:32:49,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35052 states. [2022-01-18 08:32:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35052 to 24039. [2022-01-18 08:32:49,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24039 states, 24032 states have (on average 3.6284953395472703) internal successors, (87200), 24038 states have internal predecessors, (87200), 0 states have call successors, (0), 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 08:32:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24039 states to 24039 states and 87200 transitions. [2022-01-18 08:32:49,744 INFO L78 Accepts]: Start accepts. Automaton has 24039 states and 87200 transitions. Word has length 41 [2022-01-18 08:32:49,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:49,744 INFO L470 AbstractCegarLoop]: Abstraction has 24039 states and 87200 transitions. [2022-01-18 08:32:49,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:49,744 INFO L276 IsEmpty]: Start isEmpty. Operand 24039 states and 87200 transitions. [2022-01-18 08:32:49,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:49,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:49,747 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:49,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-18 08:32:49,747 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:49,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:49,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1673074157, now seen corresponding path program 2 times [2022-01-18 08:32:49,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:49,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474286505] [2022-01-18 08:32:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:49,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:49,793 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:49,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474286505] [2022-01-18 08:32:49,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474286505] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:49,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:49,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:32:49,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437745780] [2022-01-18 08:32:49,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:49,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:32:49,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:49,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:32:49,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:32:49,795 INFO L87 Difference]: Start difference. First operand 24039 states and 87200 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:50,163 INFO L93 Difference]: Finished difference Result 40548 states and 145400 transitions. [2022-01-18 08:32:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 08:32:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:50,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:50,296 INFO L225 Difference]: With dead ends: 40548 [2022-01-18 08:32:50,297 INFO L226 Difference]: Without dead ends: 39596 [2022-01-18 08:32:50,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:32:50,297 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 155 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:50,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 344 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39596 states. [2022-01-18 08:32:51,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39596 to 24537. [2022-01-18 08:32:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24537 states, 24530 states have (on average 3.629392580513657) internal successors, (89029), 24536 states have internal predecessors, (89029), 0 states have call successors, (0), 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 08:32:51,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24537 states to 24537 states and 89029 transitions. [2022-01-18 08:32:51,122 INFO L78 Accepts]: Start accepts. Automaton has 24537 states and 89029 transitions. Word has length 41 [2022-01-18 08:32:51,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:51,122 INFO L470 AbstractCegarLoop]: Abstraction has 24537 states and 89029 transitions. [2022-01-18 08:32:51,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:51,123 INFO L276 IsEmpty]: Start isEmpty. Operand 24537 states and 89029 transitions. [2022-01-18 08:32:51,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:51,125 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:51,125 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:51,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-18 08:32:51,125 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:51,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:51,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1144822537, now seen corresponding path program 3 times [2022-01-18 08:32:51,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:51,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608538633] [2022-01-18 08:32:51,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:51,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:51,178 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:51,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:51,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608538633] [2022-01-18 08:32:51,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608538633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:51,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:51,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:32:51,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919204154] [2022-01-18 08:32:51,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:51,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:32:51,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:51,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:32:51,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:51,180 INFO L87 Difference]: Start difference. First operand 24537 states and 89029 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:51,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:51,920 INFO L93 Difference]: Finished difference Result 45013 states and 156576 transitions. [2022-01-18 08:32:51,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-18 08:32:51,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:51,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:52,060 INFO L225 Difference]: With dead ends: 45013 [2022-01-18 08:32:52,060 INFO L226 Difference]: Without dead ends: 43077 [2022-01-18 08:32:52,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-01-18 08:32:52,060 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 322 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:52,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [322 Valid, 578 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 08:32:52,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43077 states. [2022-01-18 08:32:52,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43077 to 20819. [2022-01-18 08:32:52,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20819 states, 20812 states have (on average 3.582356332884874) internal successors, (74556), 20818 states have internal predecessors, (74556), 0 states have call successors, (0), 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 08:32:52,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20819 states to 20819 states and 74556 transitions. [2022-01-18 08:32:52,796 INFO L78 Accepts]: Start accepts. Automaton has 20819 states and 74556 transitions. Word has length 41 [2022-01-18 08:32:52,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:52,796 INFO L470 AbstractCegarLoop]: Abstraction has 20819 states and 74556 transitions. [2022-01-18 08:32:52,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:52,796 INFO L276 IsEmpty]: Start isEmpty. Operand 20819 states and 74556 transitions. [2022-01-18 08:32:52,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:32:52,798 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:52,798 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:52,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-18 08:32:52,799 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:52,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:52,799 INFO L85 PathProgramCache]: Analyzing trace with hash 947641273, now seen corresponding path program 4 times [2022-01-18 08:32:52,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:52,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865212596] [2022-01-18 08:32:52,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:52,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:52,842 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:32:52,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:52,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865212596] [2022-01-18 08:32:52,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865212596] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:52,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:52,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:32:52,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59609542] [2022-01-18 08:32:52,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:52,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:32:52,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:32:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:32:52,845 INFO L87 Difference]: Start difference. First operand 20819 states and 74556 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:53,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:53,168 INFO L93 Difference]: Finished difference Result 34538 states and 122335 transitions. [2022-01-18 08:32:53,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 08:32:53,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 41 [2022-01-18 08:32:53,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:53,293 INFO L225 Difference]: With dead ends: 34538 [2022-01-18 08:32:53,293 INFO L226 Difference]: Without dead ends: 34226 [2022-01-18 08:32:53,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:32:53,294 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 157 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:53,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 313 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:53,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34226 states. [2022-01-18 08:32:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34226 to 19520. [2022-01-18 08:32:53,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19520 states, 19513 states have (on average 3.5816122584943373) internal successors, (69888), 19519 states have internal predecessors, (69888), 0 states have call successors, (0), 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 08:32:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19520 states to 19520 states and 69888 transitions. [2022-01-18 08:32:54,036 INFO L78 Accepts]: Start accepts. Automaton has 19520 states and 69888 transitions. Word has length 41 [2022-01-18 08:32:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:54,036 INFO L470 AbstractCegarLoop]: Abstraction has 19520 states and 69888 transitions. [2022-01-18 08:32:54,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 08:32:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 19520 states and 69888 transitions. [2022-01-18 08:32:54,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-01-18 08:32:54,039 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:54,039 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:32:54,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-18 08:32:54,039 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:54,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:54,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1617890134, now seen corresponding path program 1 times [2022-01-18 08:32:54,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:54,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104470120] [2022-01-18 08:32:54,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:54,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:32:54,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:54,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104470120] [2022-01-18 08:32:54,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104470120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:54,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:54,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:32:54,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718813244] [2022-01-18 08:32:54,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:54,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:32:54,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:54,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:32:54,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:32:54,098 INFO L87 Difference]: Start difference. First operand 19520 states and 69888 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 08:32:54,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:54,358 INFO L93 Difference]: Finished difference Result 31312 states and 110526 transitions. [2022-01-18 08:32:54,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:32:54,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 42 [2022-01-18 08:32:54,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:54,464 INFO L225 Difference]: With dead ends: 31312 [2022-01-18 08:32:54,464 INFO L226 Difference]: Without dead ends: 30840 [2022-01-18 08:32:54,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:54,465 INFO L933 BasicCegarLoop]: 72 mSDtfsCounter, 140 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:54,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 208 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:54,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30840 states. [2022-01-18 08:32:55,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30840 to 21384. [2022-01-18 08:32:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21384 states, 21377 states have (on average 3.5705197174533376) internal successors, (76327), 21383 states have internal predecessors, (76327), 0 states have call successors, (0), 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 08:32:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21384 states to 21384 states and 76327 transitions. [2022-01-18 08:32:55,222 INFO L78 Accepts]: Start accepts. Automaton has 21384 states and 76327 transitions. Word has length 42 [2022-01-18 08:32:55,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:55,223 INFO L470 AbstractCegarLoop]: Abstraction has 21384 states and 76327 transitions. [2022-01-18 08:32:55,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 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 08:32:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand 21384 states and 76327 transitions. [2022-01-18 08:32:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:32:55,232 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:55,232 INFO L514 BasicCegarLoop]: trace histogram [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 08:32:55,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-18 08:32:55,233 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:55,233 INFO L85 PathProgramCache]: Analyzing trace with hash -772387979, now seen corresponding path program 1 times [2022-01-18 08:32:55,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:55,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183111600] [2022-01-18 08:32:55,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:55,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:32:55,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:55,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183111600] [2022-01-18 08:32:55,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183111600] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:55,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:55,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:32:55,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629063865] [2022-01-18 08:32:55,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:55,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:32:55,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:55,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:32:55,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:55,300 INFO L87 Difference]: Start difference. First operand 21384 states and 76327 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:32:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:55,635 INFO L93 Difference]: Finished difference Result 31832 states and 110133 transitions. [2022-01-18 08:32:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:32:55,636 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:32:55,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:55,729 INFO L225 Difference]: With dead ends: 31832 [2022-01-18 08:32:55,729 INFO L226 Difference]: Without dead ends: 30400 [2022-01-18 08:32:55,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:32:55,730 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 223 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:55,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [223 Valid, 367 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:56,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30400 states. [2022-01-18 08:32:56,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30400 to 20920. [2022-01-18 08:32:56,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20920 states, 20913 states have (on average 3.519389853201358) internal successors, (73601), 20919 states have internal predecessors, (73601), 0 states have call successors, (0), 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 08:32:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20920 states to 20920 states and 73601 transitions. [2022-01-18 08:32:56,404 INFO L78 Accepts]: Start accepts. Automaton has 20920 states and 73601 transitions. Word has length 48 [2022-01-18 08:32:56,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:56,404 INFO L470 AbstractCegarLoop]: Abstraction has 20920 states and 73601 transitions. [2022-01-18 08:32:56,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:32:56,404 INFO L276 IsEmpty]: Start isEmpty. Operand 20920 states and 73601 transitions. [2022-01-18 08:32:56,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:32:56,412 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:56,413 INFO L514 BasicCegarLoop]: trace histogram [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 08:32:56,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-18 08:32:56,413 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:56,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:56,413 INFO L85 PathProgramCache]: Analyzing trace with hash -63001683, now seen corresponding path program 1 times [2022-01-18 08:32:56,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:56,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527678265] [2022-01-18 08:32:56,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:56,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:32:56,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:56,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527678265] [2022-01-18 08:32:56,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527678265] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:56,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:56,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:32:56,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519595803] [2022-01-18 08:32:56,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:56,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:32:56,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:56,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:32:56,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:32:56,478 INFO L87 Difference]: Start difference. First operand 20920 states and 73601 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:32:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:56,768 INFO L93 Difference]: Finished difference Result 34504 states and 120167 transitions. [2022-01-18 08:32:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 08:32:56,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:32:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:57,233 INFO L225 Difference]: With dead ends: 34504 [2022-01-18 08:32:57,233 INFO L226 Difference]: Without dead ends: 33648 [2022-01-18 08:32:57,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:32:57,235 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 145 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:57,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 269 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:57,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33648 states. [2022-01-18 08:32:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33648 to 21848. [2022-01-18 08:32:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21848 states, 21841 states have (on average 3.516551439952383) internal successors, (76805), 21847 states have internal predecessors, (76805), 0 states have call successors, (0), 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 08:32:57,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21848 states to 21848 states and 76805 transitions. [2022-01-18 08:32:57,884 INFO L78 Accepts]: Start accepts. Automaton has 21848 states and 76805 transitions. Word has length 48 [2022-01-18 08:32:57,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:57,884 INFO L470 AbstractCegarLoop]: Abstraction has 21848 states and 76805 transitions. [2022-01-18 08:32:57,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:32:57,884 INFO L276 IsEmpty]: Start isEmpty. Operand 21848 states and 76805 transitions. [2022-01-18 08:32:57,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:32:57,896 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:57,896 INFO L514 BasicCegarLoop]: trace histogram [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 08:32:57,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-18 08:32:57,896 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:57,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:57,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1595469157, now seen corresponding path program 2 times [2022-01-18 08:32:57,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:57,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784971729] [2022-01-18 08:32:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:57,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:32:57,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:57,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784971729] [2022-01-18 08:32:57,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784971729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:57,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:57,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:32:57,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576202880] [2022-01-18 08:32:57,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:57,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:32:57,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:57,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:32:57,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:32:57,971 INFO L87 Difference]: Start difference. First operand 21848 states and 76805 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:32:58,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:58,364 INFO L93 Difference]: Finished difference Result 34745 states and 119249 transitions. [2022-01-18 08:32:58,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:32:58,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:32:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:58,763 INFO L225 Difference]: With dead ends: 34745 [2022-01-18 08:32:58,763 INFO L226 Difference]: Without dead ends: 33112 [2022-01-18 08:32:58,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:32:58,764 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 220 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:58,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [220 Valid, 360 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 08:32:58,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33112 states. [2022-01-18 08:32:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33112 to 20729. [2022-01-18 08:32:59,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20729 states, 20722 states have (on average 3.479393880899527) internal successors, (72100), 20728 states have internal predecessors, (72100), 0 states have call successors, (0), 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 08:32:59,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20729 states to 20729 states and 72100 transitions. [2022-01-18 08:32:59,354 INFO L78 Accepts]: Start accepts. Automaton has 20729 states and 72100 transitions. Word has length 48 [2022-01-18 08:32:59,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:32:59,354 INFO L470 AbstractCegarLoop]: Abstraction has 20729 states and 72100 transitions. [2022-01-18 08:32:59,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:32:59,355 INFO L276 IsEmpty]: Start isEmpty. Operand 20729 states and 72100 transitions. [2022-01-18 08:32:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:32:59,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:32:59,364 INFO L514 BasicCegarLoop]: trace histogram [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 08:32:59,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-18 08:32:59,364 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:32:59,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:32:59,364 INFO L85 PathProgramCache]: Analyzing trace with hash -584939667, now seen corresponding path program 3 times [2022-01-18 08:32:59,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:32:59,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416926775] [2022-01-18 08:32:59,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:32:59,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:32:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:32:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:32:59,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:32:59,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416926775] [2022-01-18 08:32:59,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416926775] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:32:59,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:32:59,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:32:59,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748455106] [2022-01-18 08:32:59,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:32:59,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:32:59,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:32:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:32:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:32:59,422 INFO L87 Difference]: Start difference. First operand 20729 states and 72100 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:32:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:32:59,710 INFO L93 Difference]: Finished difference Result 33033 states and 113762 transitions. [2022-01-18 08:32:59,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 08:32:59,710 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:32:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:32:59,798 INFO L225 Difference]: With dead ends: 33033 [2022-01-18 08:32:59,798 INFO L226 Difference]: Without dead ends: 32177 [2022-01-18 08:32:59,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:32:59,799 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 133 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:32:59,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 275 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:32:59,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32177 states. [2022-01-18 08:33:00,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32177 to 18553. [2022-01-18 08:33:00,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18553 states, 18546 states have (on average 3.4631726517847516) internal successors, (64228), 18552 states have internal predecessors, (64228), 0 states have call successors, (0), 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 08:33:00,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18553 states to 18553 states and 64228 transitions. [2022-01-18 08:33:00,379 INFO L78 Accepts]: Start accepts. Automaton has 18553 states and 64228 transitions. Word has length 48 [2022-01-18 08:33:00,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:00,380 INFO L470 AbstractCegarLoop]: Abstraction has 18553 states and 64228 transitions. [2022-01-18 08:33:00,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 18553 states and 64228 transitions. [2022-01-18 08:33:00,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:33:00,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:00,388 INFO L514 BasicCegarLoop]: trace histogram [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 08:33:00,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-18 08:33:00,388 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:00,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:00,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1070473081, now seen corresponding path program 1 times [2022-01-18 08:33:00,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:00,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409215162] [2022-01-18 08:33:00,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:00,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:00,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:00,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409215162] [2022-01-18 08:33:00,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409215162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:00,453 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:00,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:33:00,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644986940] [2022-01-18 08:33:00,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:00,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:33:00,454 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:00,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:33:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:33:00,454 INFO L87 Difference]: Start difference. First operand 18553 states and 64228 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:00,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:00,728 INFO L93 Difference]: Finished difference Result 29537 states and 100879 transitions. [2022-01-18 08:33:00,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:33:00,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:33:00,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:00,799 INFO L225 Difference]: With dead ends: 29537 [2022-01-18 08:33:00,799 INFO L226 Difference]: Without dead ends: 28009 [2022-01-18 08:33:00,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:33:00,799 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 197 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:00,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [197 Valid, 390 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28009 states. [2022-01-18 08:33:01,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28009 to 19993. [2022-01-18 08:33:01,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19993 states, 19986 states have (on average 3.457620334233964) internal successors, (69104), 19992 states have internal predecessors, (69104), 0 states have call successors, (0), 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 08:33:01,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19993 states to 19993 states and 69104 transitions. [2022-01-18 08:33:01,459 INFO L78 Accepts]: Start accepts. Automaton has 19993 states and 69104 transitions. Word has length 48 [2022-01-18 08:33:01,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:01,459 INFO L470 AbstractCegarLoop]: Abstraction has 19993 states and 69104 transitions. [2022-01-18 08:33:01,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:01,460 INFO L276 IsEmpty]: Start isEmpty. Operand 19993 states and 69104 transitions. [2022-01-18 08:33:01,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:33:01,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:01,469 INFO L514 BasicCegarLoop]: trace histogram [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 08:33:01,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-18 08:33:01,469 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:01,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:01,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1967424071, now seen corresponding path program 1 times [2022-01-18 08:33:01,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:01,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77109488] [2022-01-18 08:33:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:01,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:01,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:01,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:01,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77109488] [2022-01-18 08:33:01,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77109488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:01,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:01,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:33:01,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208983309] [2022-01-18 08:33:01,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:01,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:33:01,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:01,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:33:01,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:33:01,512 INFO L87 Difference]: Start difference. First operand 19993 states and 69104 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:01,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:01,768 INFO L93 Difference]: Finished difference Result 31297 states and 107091 transitions. [2022-01-18 08:33:01,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 08:33:01,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:33:01,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:01,867 INFO L225 Difference]: With dead ends: 31297 [2022-01-18 08:33:01,867 INFO L226 Difference]: Without dead ends: 29937 [2022-01-18 08:33:01,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:33:01,869 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 142 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:01,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 259 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:01,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29937 states. [2022-01-18 08:33:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29937 to 21217. [2022-01-18 08:33:02,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21217 states, 21210 states have (on average 3.4526638378123526) internal successors, (73231), 21216 states have internal predecessors, (73231), 0 states have call successors, (0), 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 08:33:02,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21217 states to 21217 states and 73231 transitions. [2022-01-18 08:33:02,575 INFO L78 Accepts]: Start accepts. Automaton has 21217 states and 73231 transitions. Word has length 48 [2022-01-18 08:33:02,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:02,576 INFO L470 AbstractCegarLoop]: Abstraction has 21217 states and 73231 transitions. [2022-01-18 08:33:02,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:02,576 INFO L276 IsEmpty]: Start isEmpty. Operand 21217 states and 73231 transitions. [2022-01-18 08:33:02,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:33:02,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:02,584 INFO L514 BasicCegarLoop]: trace histogram [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 08:33:02,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-18 08:33:02,584 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:02,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:02,585 INFO L85 PathProgramCache]: Analyzing trace with hash -245673009, now seen corresponding path program 2 times [2022-01-18 08:33:02,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:02,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272061640] [2022-01-18 08:33:02,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:02,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:02,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:02,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272061640] [2022-01-18 08:33:02,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272061640] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:02,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:02,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 08:33:02,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543601272] [2022-01-18 08:33:02,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:02,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 08:33:02,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:02,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 08:33:02,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:33:02,653 INFO L87 Difference]: Start difference. First operand 21217 states and 73231 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:02,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:02,945 INFO L93 Difference]: Finished difference Result 31786 states and 107582 transitions. [2022-01-18 08:33:02,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:33:02,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:33:02,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:03,021 INFO L225 Difference]: With dead ends: 31786 [2022-01-18 08:33:03,021 INFO L226 Difference]: Without dead ends: 30153 [2022-01-18 08:33:03,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-18 08:33:03,022 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 200 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:03,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 409 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:03,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30153 states. [2022-01-18 08:33:03,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30153 to 20082. [2022-01-18 08:33:03,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20082 states, 20075 states have (on average 3.4120049813200497) internal successors, (68496), 20081 states have internal predecessors, (68496), 0 states have call successors, (0), 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 08:33:03,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20082 states to 20082 states and 68496 transitions. [2022-01-18 08:33:03,440 INFO L78 Accepts]: Start accepts. Automaton has 20082 states and 68496 transitions. Word has length 48 [2022-01-18 08:33:03,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:03,440 INFO L470 AbstractCegarLoop]: Abstraction has 20082 states and 68496 transitions. [2022-01-18 08:33:03,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand 20082 states and 68496 transitions. [2022-01-18 08:33:03,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-18 08:33:03,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:03,449 INFO L514 BasicCegarLoop]: trace histogram [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 08:33:03,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-18 08:33:03,449 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:03,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:03,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1293763091, now seen corresponding path program 3 times [2022-01-18 08:33:03,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:03,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835202966] [2022-01-18 08:33:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:03,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:03,488 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:03,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:03,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835202966] [2022-01-18 08:33:03,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835202966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:03,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:03,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 08:33:03,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754982189] [2022-01-18 08:33:03,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:03,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 08:33:03,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:03,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 08:33:03,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 08:33:03,490 INFO L87 Difference]: Start difference. First operand 20082 states and 68496 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:03,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:03,950 INFO L93 Difference]: Finished difference Result 29522 states and 99692 transitions. [2022-01-18 08:33:03,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-18 08:33:03,950 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 48 [2022-01-18 08:33:03,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:04,034 INFO L225 Difference]: With dead ends: 29522 [2022-01-18 08:33:04,035 INFO L226 Difference]: Without dead ends: 28162 [2022-01-18 08:33:04,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:33:04,036 INFO L933 BasicCegarLoop]: 88 mSDtfsCounter, 133 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:04,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 308 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28162 states. [2022-01-18 08:33:04,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28162 to 17538. [2022-01-18 08:33:04,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17538 states, 17531 states have (on average 3.4041412355256404) internal successors, (59678), 17537 states have internal predecessors, (59678), 0 states have call successors, (0), 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 08:33:04,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17538 states to 17538 states and 59678 transitions. [2022-01-18 08:33:04,482 INFO L78 Accepts]: Start accepts. Automaton has 17538 states and 59678 transitions. Word has length 48 [2022-01-18 08:33:04,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:04,484 INFO L470 AbstractCegarLoop]: Abstraction has 17538 states and 59678 transitions. [2022-01-18 08:33:04,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:33:04,484 INFO L276 IsEmpty]: Start isEmpty. Operand 17538 states and 59678 transitions. [2022-01-18 08:33:04,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:33:04,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:04,504 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:04,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-18 08:33:04,505 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:04,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:04,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1605447440, now seen corresponding path program 1 times [2022-01-18 08:33:04,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:04,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974862832] [2022-01-18 08:33:04,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:04,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:04,585 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:04,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:04,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974862832] [2022-01-18 08:33:04,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974862832] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:04,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:04,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 08:33:04,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699207136] [2022-01-18 08:33:04,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:04,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 08:33:04,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:04,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 08:33:04,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:33:04,588 INFO L87 Difference]: Start difference. First operand 17538 states and 59678 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:04,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:04,947 INFO L93 Difference]: Finished difference Result 26706 states and 89764 transitions. [2022-01-18 08:33:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 08:33:04,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:04,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:05,011 INFO L225 Difference]: With dead ends: 26706 [2022-01-18 08:33:05,011 INFO L226 Difference]: Without dead ends: 24722 [2022-01-18 08:33:05,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-01-18 08:33:05,012 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 240 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:05,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [240 Valid, 571 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 08:33:05,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24722 states. [2022-01-18 08:33:05,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24722 to 17418. [2022-01-18 08:33:05,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17418 states, 17411 states have (on average 3.398598587100109) internal successors, (59173), 17417 states have internal predecessors, (59173), 0 states have call successors, (0), 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 08:33:05,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17418 states to 17418 states and 59173 transitions. [2022-01-18 08:33:05,479 INFO L78 Accepts]: Start accepts. Automaton has 17418 states and 59173 transitions. Word has length 54 [2022-01-18 08:33:05,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:05,479 INFO L470 AbstractCegarLoop]: Abstraction has 17418 states and 59173 transitions. [2022-01-18 08:33:05,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:05,480 INFO L276 IsEmpty]: Start isEmpty. Operand 17418 states and 59173 transitions. [2022-01-18 08:33:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:33:05,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:05,499 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:05,499 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-18 08:33:05,499 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:05,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:05,499 INFO L85 PathProgramCache]: Analyzing trace with hash -912142096, now seen corresponding path program 2 times [2022-01-18 08:33:05,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:05,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642626116] [2022-01-18 08:33:05,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:05,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:05,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:05,582 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:05,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:05,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642626116] [2022-01-18 08:33:05,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642626116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:05,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:05,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 08:33:05,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836638840] [2022-01-18 08:33:05,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:05,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 08:33:05,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:05,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 08:33:05,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:33:05,583 INFO L87 Difference]: Start difference. First operand 17418 states and 59173 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:05,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:05,910 INFO L93 Difference]: Finished difference Result 24522 states and 81957 transitions. [2022-01-18 08:33:05,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-18 08:33:05,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:05,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:05,963 INFO L225 Difference]: With dead ends: 24522 [2022-01-18 08:33:05,963 INFO L226 Difference]: Without dead ends: 22538 [2022-01-18 08:33:05,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-01-18 08:33:05,963 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 236 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:05,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [236 Valid, 612 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 08:33:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22538 states. [2022-01-18 08:33:06,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22538 to 17298. [2022-01-18 08:33:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17298 states, 17291 states have (on average 3.3929790064195244) internal successors, (58668), 17297 states have internal predecessors, (58668), 0 states have call successors, (0), 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 08:33:06,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17298 states to 17298 states and 58668 transitions. [2022-01-18 08:33:06,278 INFO L78 Accepts]: Start accepts. Automaton has 17298 states and 58668 transitions. Word has length 54 [2022-01-18 08:33:06,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:06,278 INFO L470 AbstractCegarLoop]: Abstraction has 17298 states and 58668 transitions. [2022-01-18 08:33:06,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:06,279 INFO L276 IsEmpty]: Start isEmpty. Operand 17298 states and 58668 transitions. [2022-01-18 08:33:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:33:06,296 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:06,297 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:06,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-18 08:33:06,297 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1464591684, now seen corresponding path program 1 times [2022-01-18 08:33:06,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:06,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271953273] [2022-01-18 08:33:06,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:06,297 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:06,384 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:06,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:06,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271953273] [2022-01-18 08:33:06,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271953273] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:06,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:06,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 08:33:06,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582232651] [2022-01-18 08:33:06,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:06,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 08:33:06,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:06,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 08:33:06,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:33:06,385 INFO L87 Difference]: Start difference. First operand 17298 states and 58668 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:07,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:07,108 INFO L93 Difference]: Finished difference Result 35413 states and 117867 transitions. [2022-01-18 08:33:07,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 08:33:07,108 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:07,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:07,193 INFO L225 Difference]: With dead ends: 35413 [2022-01-18 08:33:07,193 INFO L226 Difference]: Without dead ends: 33093 [2022-01-18 08:33:07,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-01-18 08:33:07,194 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 386 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 718 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:07,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [386 Valid, 718 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 08:33:07,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33093 states. [2022-01-18 08:33:07,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33093 to 16498. [2022-01-18 08:33:07,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16498 states, 16491 states have (on average 3.392880965375053) internal successors, (55952), 16497 states have internal predecessors, (55952), 0 states have call successors, (0), 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 08:33:07,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16498 states to 16498 states and 55952 transitions. [2022-01-18 08:33:07,581 INFO L78 Accepts]: Start accepts. Automaton has 16498 states and 55952 transitions. Word has length 54 [2022-01-18 08:33:07,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:07,581 INFO L470 AbstractCegarLoop]: Abstraction has 16498 states and 55952 transitions. [2022-01-18 08:33:07,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:07,581 INFO L276 IsEmpty]: Start isEmpty. Operand 16498 states and 55952 transitions. [2022-01-18 08:33:07,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:33:07,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:07,597 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:07,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-18 08:33:07,597 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:07,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:07,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1464187616, now seen corresponding path program 1 times [2022-01-18 08:33:07,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:07,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377138049] [2022-01-18 08:33:07,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:07,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:07,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:07,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:07,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377138049] [2022-01-18 08:33:07,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377138049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:07,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:07,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 08:33:07,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666956664] [2022-01-18 08:33:07,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:07,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 08:33:07,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:07,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 08:33:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:33:07,686 INFO L87 Difference]: Start difference. First operand 16498 states and 55952 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:08,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:08,029 INFO L93 Difference]: Finished difference Result 21858 states and 73050 transitions. [2022-01-18 08:33:08,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 08:33:08,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:08,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:08,080 INFO L225 Difference]: With dead ends: 21858 [2022-01-18 08:33:08,080 INFO L226 Difference]: Without dead ends: 21018 [2022-01-18 08:33:08,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-01-18 08:33:08,081 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 209 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:08,082 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [209 Valid, 531 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 08:33:08,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21018 states. [2022-01-18 08:33:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21018 to 16498. [2022-01-18 08:33:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16498 states, 16491 states have (on average 3.3807531380753137) internal successors, (55752), 16497 states have internal predecessors, (55752), 0 states have call successors, (0), 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 08:33:08,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16498 states to 16498 states and 55752 transitions. [2022-01-18 08:33:08,488 INFO L78 Accepts]: Start accepts. Automaton has 16498 states and 55752 transitions. Word has length 54 [2022-01-18 08:33:08,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:08,488 INFO L470 AbstractCegarLoop]: Abstraction has 16498 states and 55752 transitions. [2022-01-18 08:33:08,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:08,489 INFO L276 IsEmpty]: Start isEmpty. Operand 16498 states and 55752 transitions. [2022-01-18 08:33:08,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:33:08,504 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:08,504 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:08,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-18 08:33:08,505 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:08,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:08,505 INFO L85 PathProgramCache]: Analyzing trace with hash 2003971684, now seen corresponding path program 2 times [2022-01-18 08:33:08,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:08,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936936739] [2022-01-18 08:33:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:08,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:08,569 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:08,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:08,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936936739] [2022-01-18 08:33:08,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936936739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:08,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:08,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 08:33:08,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982808384] [2022-01-18 08:33:08,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:08,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 08:33:08,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:08,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 08:33:08,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:33:08,570 INFO L87 Difference]: Start difference. First operand 16498 states and 55752 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:08,894 INFO L93 Difference]: Finished difference Result 22698 states and 75289 transitions. [2022-01-18 08:33:08,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-18 08:33:08,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:08,950 INFO L225 Difference]: With dead ends: 22698 [2022-01-18 08:33:08,950 INFO L226 Difference]: Without dead ends: 22218 [2022-01-18 08:33:08,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-01-18 08:33:08,950 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 224 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:08,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [224 Valid, 496 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-18 08:33:08,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22218 states. [2022-01-18 08:33:09,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22218 to 16618. [2022-01-18 08:33:09,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16618 states, 16611 states have (on average 3.374691469508157) internal successors, (56057), 16617 states have internal predecessors, (56057), 0 states have call successors, (0), 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 08:33:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16618 states to 16618 states and 56057 transitions. [2022-01-18 08:33:09,259 INFO L78 Accepts]: Start accepts. Automaton has 16618 states and 56057 transitions. Word has length 54 [2022-01-18 08:33:09,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:09,259 INFO L470 AbstractCegarLoop]: Abstraction has 16618 states and 56057 transitions. [2022-01-18 08:33:09,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 16618 states and 56057 transitions. [2022-01-18 08:33:09,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:33:09,275 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:09,276 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:09,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-18 08:33:09,276 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:09,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:09,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2003567616, now seen corresponding path program 2 times [2022-01-18 08:33:09,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:09,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550422369] [2022-01-18 08:33:09,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:09,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:09,342 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:09,342 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:09,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550422369] [2022-01-18 08:33:09,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550422369] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:09,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:09,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-18 08:33:09,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032194485] [2022-01-18 08:33:09,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:09,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-18 08:33:09,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:09,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-18 08:33:09,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-18 08:33:09,343 INFO L87 Difference]: Start difference. First operand 16618 states and 56057 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:09,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:09,987 INFO L93 Difference]: Finished difference Result 31645 states and 105306 transitions. [2022-01-18 08:33:09,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-18 08:33:09,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:09,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:10,059 INFO L225 Difference]: With dead ends: 31645 [2022-01-18 08:33:10,059 INFO L226 Difference]: Without dead ends: 27725 [2022-01-18 08:33:10,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-01-18 08:33:10,059 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 356 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:10,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [356 Valid, 763 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-18 08:33:10,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27725 states. [2022-01-18 08:33:10,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27725 to 14658. [2022-01-18 08:33:10,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14658 states, 14651 states have (on average 3.359088116852092) internal successors, (49214), 14657 states have internal predecessors, (49214), 0 states have call successors, (0), 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 08:33:10,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14658 states to 14658 states and 49214 transitions. [2022-01-18 08:33:10,374 INFO L78 Accepts]: Start accepts. Automaton has 14658 states and 49214 transitions. Word has length 54 [2022-01-18 08:33:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:10,374 INFO L470 AbstractCegarLoop]: Abstraction has 14658 states and 49214 transitions. [2022-01-18 08:33:10,374 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 14658 states and 49214 transitions. [2022-01-18 08:33:10,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-18 08:33:10,388 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:10,388 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:10,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-18 08:33:10,388 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:10,388 INFO L85 PathProgramCache]: Analyzing trace with hash 913515628, now seen corresponding path program 3 times [2022-01-18 08:33:10,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:10,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642278125] [2022-01-18 08:33:10,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:10,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:10,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:10,416 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:10,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:10,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642278125] [2022-01-18 08:33:10,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642278125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:10,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:10,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 08:33:10,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257791321] [2022-01-18 08:33:10,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:10,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-18 08:33:10,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:10,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-18 08:33:10,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-18 08:33:10,417 INFO L87 Difference]: Start difference. First operand 14658 states and 49214 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:10,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:10,462 INFO L93 Difference]: Finished difference Result 7640 states and 24911 transitions. [2022-01-18 08:33:10,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-18 08:33:10,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:10,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:10,477 INFO L225 Difference]: With dead ends: 7640 [2022-01-18 08:33:10,477 INFO L226 Difference]: Without dead ends: 7424 [2022-01-18 08:33:10,477 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 08:33:10,478 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 32 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:10,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 95 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 08:33:10,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2022-01-18 08:33:10,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 7424. [2022-01-18 08:33:10,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7424 states, 7417 states have (on average 3.265201563974653) internal successors, (24218), 7423 states have internal predecessors, (24218), 0 states have call successors, (0), 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 08:33:10,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7424 states to 7424 states and 24218 transitions. [2022-01-18 08:33:10,594 INFO L78 Accepts]: Start accepts. Automaton has 7424 states and 24218 transitions. Word has length 54 [2022-01-18 08:33:10,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:10,594 INFO L470 AbstractCegarLoop]: Abstraction has 7424 states and 24218 transitions. [2022-01-18 08:33:10,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 08:33:10,594 INFO L276 IsEmpty]: Start isEmpty. Operand 7424 states and 24218 transitions. [2022-01-18 08:33:10,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:33:10,601 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:10,601 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:10,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-18 08:33:10,602 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:10,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:10,602 INFO L85 PathProgramCache]: Analyzing trace with hash 613467067, now seen corresponding path program 1 times [2022-01-18 08:33:10,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:10,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794769074] [2022-01-18 08:33:10,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:10,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:10,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:10,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794769074] [2022-01-18 08:33:10,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794769074] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:10,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:10,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 08:33:10,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821379809] [2022-01-18 08:33:10,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:10,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 08:33:10,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:10,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 08:33:10,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:33:10,683 INFO L87 Difference]: Start difference. First operand 7424 states and 24218 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:10,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:10,881 INFO L93 Difference]: Finished difference Result 9512 states and 30723 transitions. [2022-01-18 08:33:10,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 08:33:10,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 55 [2022-01-18 08:33:10,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:10,897 INFO L225 Difference]: With dead ends: 9512 [2022-01-18 08:33:10,897 INFO L226 Difference]: Without dead ends: 7936 [2022-01-18 08:33:10,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-01-18 08:33:10,897 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 214 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:10,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 492 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:10,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7936 states. [2022-01-18 08:33:10,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7936 to 6072. [2022-01-18 08:33:10,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6072 states, 6065 states have (on average 3.2268755152514426) internal successors, (19571), 6071 states have internal predecessors, (19571), 0 states have call successors, (0), 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 08:33:11,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6072 states to 6072 states and 19571 transitions. [2022-01-18 08:33:11,008 INFO L78 Accepts]: Start accepts. Automaton has 6072 states and 19571 transitions. Word has length 55 [2022-01-18 08:33:11,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:11,008 INFO L470 AbstractCegarLoop]: Abstraction has 6072 states and 19571 transitions. [2022-01-18 08:33:11,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:11,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6072 states and 19571 transitions. [2022-01-18 08:33:11,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:33:11,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:11,015 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:11,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-18 08:33:11,015 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:11,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:11,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1179825005, now seen corresponding path program 1 times [2022-01-18 08:33:11,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:11,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941468637] [2022-01-18 08:33:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:11,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:11,099 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:11,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:11,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941468637] [2022-01-18 08:33:11,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941468637] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:11,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:11,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 08:33:11,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967747807] [2022-01-18 08:33:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:11,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 08:33:11,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:11,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 08:33:11,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:33:11,101 INFO L87 Difference]: Start difference. First operand 6072 states and 19571 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:11,293 INFO L93 Difference]: Finished difference Result 7376 states and 23638 transitions. [2022-01-18 08:33:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 08:33:11,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 55 [2022-01-18 08:33:11,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:11,302 INFO L225 Difference]: With dead ends: 7376 [2022-01-18 08:33:11,302 INFO L226 Difference]: Without dead ends: 4832 [2022-01-18 08:33:11,303 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-01-18 08:33:11,303 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 195 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:11,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 547 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:11,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2022-01-18 08:33:11,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4832. [2022-01-18 08:33:11,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4832 states, 4825 states have (on average 3.2288082901554405) internal successors, (15579), 4831 states have internal predecessors, (15579), 0 states have call successors, (0), 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 08:33:11,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4832 states to 4832 states and 15579 transitions. [2022-01-18 08:33:11,368 INFO L78 Accepts]: Start accepts. Automaton has 4832 states and 15579 transitions. Word has length 55 [2022-01-18 08:33:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:11,368 INFO L470 AbstractCegarLoop]: Abstraction has 4832 states and 15579 transitions. [2022-01-18 08:33:11,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 4832 states and 15579 transitions. [2022-01-18 08:33:11,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:33:11,373 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:11,373 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:11,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-18 08:33:11,373 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:11,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:11,374 INFO L85 PathProgramCache]: Analyzing trace with hash -2059581349, now seen corresponding path program 1 times [2022-01-18 08:33:11,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:11,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115131573] [2022-01-18 08:33:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:11,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:11,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:11,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115131573] [2022-01-18 08:33:11,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115131573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:11,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:11,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 08:33:11,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379870462] [2022-01-18 08:33:11,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:11,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 08:33:11,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:11,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 08:33:11,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:33:11,463 INFO L87 Difference]: Start difference. First operand 4832 states and 15579 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:11,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:11,623 INFO L93 Difference]: Finished difference Result 5056 states and 16079 transitions. [2022-01-18 08:33:11,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-18 08:33:11,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 55 [2022-01-18 08:33:11,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:11,629 INFO L225 Difference]: With dead ends: 5056 [2022-01-18 08:33:11,629 INFO L226 Difference]: Without dead ends: 3480 [2022-01-18 08:33:11,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-01-18 08:33:11,630 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 179 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:11,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 567 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:11,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3480 states. [2022-01-18 08:33:11,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3480 to 3480. [2022-01-18 08:33:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 3473 states have (on average 3.1477109127555427) internal successors, (10932), 3479 states have internal predecessors, (10932), 0 states have call successors, (0), 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 08:33:11,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 10932 transitions. [2022-01-18 08:33:11,669 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 10932 transitions. Word has length 55 [2022-01-18 08:33:11,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:11,669 INFO L470 AbstractCegarLoop]: Abstraction has 3480 states and 10932 transitions. [2022-01-18 08:33:11,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:11,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 10932 transitions. [2022-01-18 08:33:11,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-18 08:33:11,671 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:11,671 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:11,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-18 08:33:11,671 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-18 08:33:11,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:11,672 INFO L85 PathProgramCache]: Analyzing trace with hash -926865459, now seen corresponding path program 2 times [2022-01-18 08:33:11,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:11,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175280423] [2022-01-18 08:33:11,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:11,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:11,740 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-18 08:33:11,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:11,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175280423] [2022-01-18 08:33:11,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175280423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:11,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:11,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-18 08:33:11,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601871859] [2022-01-18 08:33:11,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:11,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-18 08:33:11,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:11,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-18 08:33:11,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-18 08:33:11,741 INFO L87 Difference]: Start difference. First operand 3480 states and 10932 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:11,867 INFO L93 Difference]: Finished difference Result 2920 states and 8994 transitions. [2022-01-18 08:33:11,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-18 08:33:11,867 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 55 [2022-01-18 08:33:11,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:11,867 INFO L225 Difference]: With dead ends: 2920 [2022-01-18 08:33:11,867 INFO L226 Difference]: Without dead ends: 0 [2022-01-18 08:33:11,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-01-18 08:33:11,868 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 204 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:11,868 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [204 Valid, 449 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:11,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-18 08:33:11,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-18 08:33:11,868 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 08:33:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-18 08:33:11,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2022-01-18 08:33:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:11,869 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-18 08:33:11,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 9 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 08:33:11,869 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-18 08:33:11,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-18 08:33:11,869 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-18 08:33:11,869 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-18 08:33:11,869 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-18 08:33:11,869 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-18 08:33:11,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-18 08:33:11,869 INFO L732 BasicCegarLoop]: Path program histogram: [4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:33:11,870 INFO L308 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-18 08:33:11,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-18 08:33:11,871 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 08:33:11,871 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-18 08:33:11,872 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 77 places, 74 transitions, 169 flow [2022-01-18 08:33:12,207 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23442 states, 23434 states have (on average 3.8147990099854914) internal successors, (89396), 23441 states have internal predecessors, (89396), 0 states have call successors, (0), 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 08:33:12,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 23442 states, 23434 states have (on average 3.8147990099854914) internal successors, (89396), 23441 states have internal predecessors, (89396), 0 states have call successors, (0), 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 08:33:12,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-01-18 08:33:12,244 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:12,244 INFO L514 BasicCegarLoop]: trace histogram [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] [2022-01-18 08:33:12,244 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-18 08:33:12,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:12,245 INFO L85 PathProgramCache]: Analyzing trace with hash 670576747, now seen corresponding path program 1 times [2022-01-18 08:33:12,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:12,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735606142] [2022-01-18 08:33:12,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:12,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:33:12,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 08:33:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 08:33:12,260 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 08:33:12,260 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 08:33:12,260 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-18 08:33:12,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-18 08:33:12,261 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-18 08:33:12,261 INFO L308 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-18 08:33:12,261 WARN L234 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 08:33:12,261 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,270 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,271 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,272 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,273 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,274 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,275 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,276 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,277 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,278 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,279 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,280 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,283 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,284 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,285 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,286 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 08:33:12,287 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-18 08:33:12,288 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 08:33:12,288 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 08:33:12,288 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 08:33:12,289 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 89 transitions, 210 flow [2022-01-18 08:33:26,341 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 570941 states, 570899 states have (on average 4.9266315057479515) internal successors, (2812609), 570940 states have internal predecessors, (2812609), 0 states have call successors, (0), 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 08:33:27,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 570941 states, 570899 states have (on average 4.9266315057479515) internal successors, (2812609), 570940 states have internal predecessors, (2812609), 0 states have call successors, (0), 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 08:33:27,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-18 08:33:27,141 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:27,141 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 08:33:27,141 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:33:27,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:27,142 INFO L85 PathProgramCache]: Analyzing trace with hash -781406249, now seen corresponding path program 1 times [2022-01-18 08:33:27,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:27,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575527823] [2022-01-18 08:33:27,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:27,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:27,179 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 08:33:27,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:27,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575527823] [2022-01-18 08:33:27,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575527823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:27,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:27,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:33:27,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094568583] [2022-01-18 08:33:27,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:27,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:33:27,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:27,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:33:27,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:33:28,750 INFO L87 Difference]: Start difference. First operand has 570941 states, 570899 states have (on average 4.9266315057479515) internal successors, (2812609), 570940 states have internal predecessors, (2812609), 0 states have call successors, (0), 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 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:33:35,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 08:33:35,716 INFO L93 Difference]: Finished difference Result 523290 states and 2445375 transitions. [2022-01-18 08:33:35,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 08:33:35,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:33:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 08:33:41,360 INFO L225 Difference]: With dead ends: 523290 [2022-01-18 08:33:41,360 INFO L226 Difference]: Without dead ends: 511177 [2022-01-18 08:33:41,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 08:33:41,361 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 206 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-18 08:33:41,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 246 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-18 08:33:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511177 states. [2022-01-18 08:33:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511177 to 347395. [2022-01-18 08:33:56,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347395 states, 347380 states have (on average 4.732676032011054) internal successors, (1644037), 347394 states have internal predecessors, (1644037), 0 states have call successors, (0), 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 08:33:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347395 states to 347395 states and 1644037 transitions. [2022-01-18 08:33:59,398 INFO L78 Accepts]: Start accepts. Automaton has 347395 states and 1644037 transitions. Word has length 28 [2022-01-18 08:33:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 08:33:59,398 INFO L470 AbstractCegarLoop]: Abstraction has 347395 states and 1644037 transitions. [2022-01-18 08:33:59,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 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 08:33:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 347395 states and 1644037 transitions. [2022-01-18 08:33:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-01-18 08:33:59,399 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 08:33:59,399 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 08:33:59,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-18 08:33:59,399 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-18 08:33:59,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 08:33:59,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1373759277, now seen corresponding path program 1 times [2022-01-18 08:33:59,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 08:33:59,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609144366] [2022-01-18 08:33:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 08:33:59,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 08:33:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 08:33:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-18 08:33:59,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 08:33:59,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609144366] [2022-01-18 08:33:59,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609144366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 08:33:59,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 08:33:59,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-18 08:33:59,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674017581] [2022-01-18 08:33:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 08:33:59,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-18 08:33:59,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 08:33:59,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-18 08:33:59,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-18 08:33:59,447 INFO L87 Difference]: Start difference. First operand 347395 states and 1644037 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)