/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 10:31:51,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 10:31:51,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 10:31:51,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 10:31:51,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 10:31:51,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 10:31:51,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 10:31:51,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 10:31:51,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 10:31:51,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 10:31:51,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 10:31:51,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 10:31:51,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 10:31:51,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 10:31:51,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 10:31:51,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 10:31:51,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 10:31:51,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 10:31:51,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 10:31:51,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 10:31:51,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 10:31:51,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 10:31:51,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 10:31:51,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 10:31:51,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 10:31:51,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 10:31:51,560 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 10:31:51,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 10:31:51,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 10:31:51,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 10:31:51,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 10:31:51,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 10:31:51,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 10:31:51,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 10:31:51,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 10:31:51,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 10:31:51,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 10:31:51,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 10:31:51,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 10:31:51,572 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 10:31:51,573 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 10:31:51,574 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 10:31:51,634 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 10:31:51,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 10:31:51,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 10:31:51,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 10:31:51,641 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 10:31:51,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 10:31:51,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 10:31:51,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 10:31:51,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 10:31:51,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 10:31:51,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 10:31:51,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 10:31:51,644 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 10:31:51,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 10:31:51,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 10:31:51,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 10:31:51,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 10:31:51,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 10:31:51,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 10:31:51,646 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 10:31:51,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 10:31:51,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 10:31:51,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 10:31:51,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 10:31:51,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 10:31:51,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 10:31:52,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 10:31:52,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 10:31:52,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 10:31:52,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 10:31:52,133 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 10:31:52,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2020-12-22 10:31:52,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae21eecdf/a164737b194b4316b1bc8e024cd8bdb6/FLAG1271a063b [2020-12-22 10:31:53,158 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 10:31:53,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2020-12-22 10:31:53,181 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae21eecdf/a164737b194b4316b1bc8e024cd8bdb6/FLAG1271a063b [2020-12-22 10:31:53,343 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae21eecdf/a164737b194b4316b1bc8e024cd8bdb6 [2020-12-22 10:31:53,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 10:31:53,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 10:31:53,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 10:31:53,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 10:31:53,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 10:31:53,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:31:53" (1/1) ... [2020-12-22 10:31:53,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d72d676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:53, skipping insertion in model container [2020-12-22 10:31:53,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 10:31:53" (1/1) ... [2020-12-22 10:31:53,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 10:31:53,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 10:31:53,731 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 10:31:53,987 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2020-12-22 10:31:54,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 10:31:54,020 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 10:31:54,041 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-22 10:31:54,072 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2020-12-22 10:31:54,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 10:31:54,294 INFO L208 MainTranslator]: Completed translation [2020-12-22 10:31:54,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54 WrapperNode [2020-12-22 10:31:54,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 10:31:54,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 10:31:54,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 10:31:54,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 10:31:54,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 10:31:54,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 10:31:54,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 10:31:54,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 10:31:54,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... [2020-12-22 10:31:54,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 10:31:54,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 10:31:54,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 10:31:54,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 10:31:54,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 10:31:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-22 10:31:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 10:31:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 10:31:54,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-22 10:31:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 10:31:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2020-12-22 10:31:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2020-12-22 10:31:54,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-12-22 10:31:54,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-12-22 10:31:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-12-22 10:31:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-12-22 10:31:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-12-22 10:31:54,557 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-12-22 10:31:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 10:31:54,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 10:31:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 10:31:54,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 10:31:54,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 10:31:54,560 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-22 10:31:55,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 10:31:55,091 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-22 10:31:55,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:31:55 BoogieIcfgContainer [2020-12-22 10:31:55,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 10:31:55,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 10:31:55,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 10:31:55,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 10:31:55,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 10:31:53" (1/3) ... [2020-12-22 10:31:55,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241f9504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:31:55, skipping insertion in model container [2020-12-22 10:31:55,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 10:31:54" (2/3) ... [2020-12-22 10:31:55,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241f9504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 10:31:55, skipping insertion in model container [2020-12-22 10:31:55,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:31:55" (3/3) ... [2020-12-22 10:31:55,107 INFO L111 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2020-12-22 10:31:55,117 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-22 10:31:55,117 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 10:31:55,123 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 10:31:55,125 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-22 10:31:55,242 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,242 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,243 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,243 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,243 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,243 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,244 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,244 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,246 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,247 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,247 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,247 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,248 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,248 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,248 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,248 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,249 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,251 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,251 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,252 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,252 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,252 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,252 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,253 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,256 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,257 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,257 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,257 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,257 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,258 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,260 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,260 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,261 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,261 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,261 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,261 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,262 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,262 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,262 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,262 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,266 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,267 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,267 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,267 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,268 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,268 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,268 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,268 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,269 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,269 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,272 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,272 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,273 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,273 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,273 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,273 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,274 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,274 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,274 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,275 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,275 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,275 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,275 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,275 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,276 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,277 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,278 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,278 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,278 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,278 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,279 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,279 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,279 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,279 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,280 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,280 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,280 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,280 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,280 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,281 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,282 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,282 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,283 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,283 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,283 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,284 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,284 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,284 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,285 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,285 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,286 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,286 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,286 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,286 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,286 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,288 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,289 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,294 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,294 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,295 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,295 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,295 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,295 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,296 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,304 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,304 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,305 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,305 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,305 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,306 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,306 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,306 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,306 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,306 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,307 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,309 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,309 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,309 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,309 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,310 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,310 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,310 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,311 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,311 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,311 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,312 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,312 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,312 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,312 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,313 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,313 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,314 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,314 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,315 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,315 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,315 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,315 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,315 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,317 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,317 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,317 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,319 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,320 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,320 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,321 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,321 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,321 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,321 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,322 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,323 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,323 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,323 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,324 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,325 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,325 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,325 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,325 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,326 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,326 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,326 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,326 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,327 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,327 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,327 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,328 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,328 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,328 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,328 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,329 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,329 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,329 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,329 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,334 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,334 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,334 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,335 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,335 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,336 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,337 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,337 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,338 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,338 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,338 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,338 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,339 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,339 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,339 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,339 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,340 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,341 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,341 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,341 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,341 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,342 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,342 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,342 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,342 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,343 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,343 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,343 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,346 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,347 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,347 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,347 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,356 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,357 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,357 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,357 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,362 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,362 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,362 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,363 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,367 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,368 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,368 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,368 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,369 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,377 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,377 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,377 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,378 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,378 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,380 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,385 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,386 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,386 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,386 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,387 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,393 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t4~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,393 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,393 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,394 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,394 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,394 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t3~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,394 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,395 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_#t~nondet12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,395 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,395 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,395 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t2~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,395 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,396 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork4_~#t5~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,402 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,408 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,408 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,416 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,417 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,420 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,421 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,421 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~malloc6.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,426 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,426 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,426 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,427 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,431 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,431 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,432 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,435 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,436 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,437 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,437 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,442 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,442 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,443 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,443 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-22 10:31:55,674 INFO L149 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2020-12-22 10:31:55,696 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 10:31:55,721 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 10:31:55,739 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 10:31:55,739 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 10:31:55,739 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 10:31:55,739 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 10:31:55,739 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 10:31:55,740 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 10:31:55,740 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 10:31:55,769 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-22 10:31:55,771 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 255 transitions, 890 flow [2020-12-22 10:31:55,775 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 255 transitions, 890 flow [2020-12-22 10:31:55,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 173 places, 255 transitions, 890 flow [2020-12-22 10:31:55,974 INFO L129 PetriNetUnfolder]: 67/316 cut-off events. [2020-12-22 10:31:55,975 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2020-12-22 10:31:55,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 316 events. 67/316 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 990 event pairs, 0 based on Foata normal form. 0/260 useless extension candidates. Maximal degree in co-relation 365. Up to 24 conditions per place. [2020-12-22 10:31:56,006 INFO L116 LiptonReduction]: Number of co-enabled transitions 4982 [2020-12-22 10:32:00,071 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-12-22 10:32:00,345 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-12-22 10:32:00,590 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 10:32:00,731 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 10:32:00,884 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-12-22 10:32:01,039 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-12-22 10:32:01,592 INFO L131 LiptonReduction]: Checked pairs total: 55868 [2020-12-22 10:32:01,592 INFO L133 LiptonReduction]: Total number of compositions: 87 [2020-12-22 10:32:01,599 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 176 transitions, 732 flow [2020-12-22 10:32:02,743 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4478 states. [2020-12-22 10:32:02,745 INFO L276 IsEmpty]: Start isEmpty. Operand 4478 states. [2020-12-22 10:32:02,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 10:32:02,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:02,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:02,755 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:02,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:02,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1918747806, now seen corresponding path program 1 times [2020-12-22 10:32:02,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:02,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245600755] [2020-12-22 10:32:02,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:03,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:03,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245600755] [2020-12-22 10:32:03,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:03,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 10:32:03,189 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315873039] [2020-12-22 10:32:03,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 10:32:03,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:03,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 10:32:03,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 10:32:03,222 INFO L87 Difference]: Start difference. First operand 4478 states. Second operand 5 states. [2020-12-22 10:32:03,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:03,572 INFO L93 Difference]: Finished difference Result 5737 states and 24083 transitions. [2020-12-22 10:32:03,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:03,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-22 10:32:03,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:03,660 INFO L225 Difference]: With dead ends: 5737 [2020-12-22 10:32:03,660 INFO L226 Difference]: Without dead ends: 5249 [2020-12-22 10:32:03,661 INFO L677 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 [2020-12-22 10:32:03,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5249 states. [2020-12-22 10:32:03,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5249 to 3995. [2020-12-22 10:32:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3995 states. [2020-12-22 10:32:04,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3995 states to 3995 states and 16455 transitions. [2020-12-22 10:32:04,015 INFO L78 Accepts]: Start accepts. Automaton has 3995 states and 16455 transitions. Word has length 10 [2020-12-22 10:32:04,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:04,015 INFO L481 AbstractCegarLoop]: Abstraction has 3995 states and 16455 transitions. [2020-12-22 10:32:04,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 10:32:04,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3995 states and 16455 transitions. [2020-12-22 10:32:04,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 10:32:04,016 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:04,017 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:04,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 10:32:04,017 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:04,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:04,022 INFO L82 PathProgramCache]: Analyzing trace with hash -410908784, now seen corresponding path program 2 times [2020-12-22 10:32:04,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:04,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426664356] [2020-12-22 10:32:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:04,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:04,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426664356] [2020-12-22 10:32:04,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:04,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 10:32:04,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217285248] [2020-12-22 10:32:04,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 10:32:04,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:04,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 10:32:04,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 10:32:04,130 INFO L87 Difference]: Start difference. First operand 3995 states and 16455 transitions. Second operand 3 states. [2020-12-22 10:32:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:04,206 INFO L93 Difference]: Finished difference Result 4483 states and 17814 transitions. [2020-12-22 10:32:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 10:32:04,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 10:32:04,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:04,257 INFO L225 Difference]: With dead ends: 4483 [2020-12-22 10:32:04,257 INFO L226 Difference]: Without dead ends: 3995 [2020-12-22 10:32:04,258 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 10:32:04,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2020-12-22 10:32:04,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3995. [2020-12-22 10:32:04,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3995 states. [2020-12-22 10:32:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3995 states to 3995 states and 15967 transitions. [2020-12-22 10:32:04,598 INFO L78 Accepts]: Start accepts. Automaton has 3995 states and 15967 transitions. Word has length 10 [2020-12-22 10:32:04,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:04,600 INFO L481 AbstractCegarLoop]: Abstraction has 3995 states and 15967 transitions. [2020-12-22 10:32:04,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 10:32:04,600 INFO L276 IsEmpty]: Start isEmpty. Operand 3995 states and 15967 transitions. [2020-12-22 10:32:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 10:32:04,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:04,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:04,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 10:32:04,602 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:04,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:04,613 INFO L82 PathProgramCache]: Analyzing trace with hash 146714135, now seen corresponding path program 1 times [2020-12-22 10:32:04,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:04,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867018825] [2020-12-22 10:32:04,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:04,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867018825] [2020-12-22 10:32:04,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:04,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 10:32:04,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342518203] [2020-12-22 10:32:04,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:04,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:04,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:04,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:04,735 INFO L87 Difference]: Start difference. First operand 3995 states and 15967 transitions. Second operand 6 states. [2020-12-22 10:32:05,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:05,027 INFO L93 Difference]: Finished difference Result 6505 states and 27533 transitions. [2020-12-22 10:32:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:05,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 10:32:05,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:05,088 INFO L225 Difference]: With dead ends: 6505 [2020-12-22 10:32:05,089 INFO L226 Difference]: Without dead ends: 6505 [2020-12-22 10:32:05,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6505 states. [2020-12-22 10:32:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6505 to 3994. [2020-12-22 10:32:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3994 states. [2020-12-22 10:32:05,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 15966 transitions. [2020-12-22 10:32:05,484 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 15966 transitions. Word has length 11 [2020-12-22 10:32:05,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:05,485 INFO L481 AbstractCegarLoop]: Abstraction has 3994 states and 15966 transitions. [2020-12-22 10:32:05,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 15966 transitions. [2020-12-22 10:32:05,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 10:32:05,486 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:05,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:05,486 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 10:32:05,486 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:05,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:05,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1573475595, now seen corresponding path program 2 times [2020-12-22 10:32:05,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:05,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815376276] [2020-12-22 10:32:05,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:05,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:05,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815376276] [2020-12-22 10:32:05,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:05,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 10:32:05,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759965815] [2020-12-22 10:32:05,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:05,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:05,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:05,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:05,552 INFO L87 Difference]: Start difference. First operand 3994 states and 15966 transitions. Second operand 6 states. [2020-12-22 10:32:05,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:05,755 INFO L93 Difference]: Finished difference Result 5238 states and 21730 transitions. [2020-12-22 10:32:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:05,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-22 10:32:05,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:05,787 INFO L225 Difference]: With dead ends: 5238 [2020-12-22 10:32:05,787 INFO L226 Difference]: Without dead ends: 5238 [2020-12-22 10:32:05,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:05,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5238 states. [2020-12-22 10:32:06,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5238 to 3980. [2020-12-22 10:32:06,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3980 states. [2020-12-22 10:32:06,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 15943 transitions. [2020-12-22 10:32:06,152 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 15943 transitions. Word has length 11 [2020-12-22 10:32:06,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:06,152 INFO L481 AbstractCegarLoop]: Abstraction has 3980 states and 15943 transitions. [2020-12-22 10:32:06,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:06,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 15943 transitions. [2020-12-22 10:32:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 10:32:06,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:06,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:06,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 10:32:06,161 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:06,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:06,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1473362807, now seen corresponding path program 1 times [2020-12-22 10:32:06,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:06,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083923677] [2020-12-22 10:32:06,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:06,239 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083923677] [2020-12-22 10:32:06,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:06,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 10:32:06,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156985533] [2020-12-22 10:32:06,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 10:32:06,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:06,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 10:32:06,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 10:32:06,244 INFO L87 Difference]: Start difference. First operand 3980 states and 15943 transitions. Second operand 5 states. [2020-12-22 10:32:06,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:06,440 INFO L93 Difference]: Finished difference Result 5159 states and 21026 transitions. [2020-12-22 10:32:06,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:06,441 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-12-22 10:32:06,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:06,540 INFO L225 Difference]: With dead ends: 5159 [2020-12-22 10:32:06,541 INFO L226 Difference]: Without dead ends: 5159 [2020-12-22 10:32:06,541 INFO L677 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 [2020-12-22 10:32:06,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5159 states. [2020-12-22 10:32:06,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5159 to 4561. [2020-12-22 10:32:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4561 states. [2020-12-22 10:32:06,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 18704 transitions. [2020-12-22 10:32:06,808 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 18704 transitions. Word has length 18 [2020-12-22 10:32:06,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:06,809 INFO L481 AbstractCegarLoop]: Abstraction has 4561 states and 18704 transitions. [2020-12-22 10:32:06,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 10:32:06,810 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 18704 transitions. [2020-12-22 10:32:06,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 10:32:06,813 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:06,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:06,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 10:32:06,814 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:06,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:06,815 INFO L82 PathProgramCache]: Analyzing trace with hash -540147017, now seen corresponding path program 2 times [2020-12-22 10:32:06,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:06,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231478741] [2020-12-22 10:32:06,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:06,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231478741] [2020-12-22 10:32:06,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:06,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 10:32:06,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496571698] [2020-12-22 10:32:06,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 10:32:06,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:06,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 10:32:06,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 10:32:06,861 INFO L87 Difference]: Start difference. First operand 4561 states and 18704 transitions. Second operand 3 states. [2020-12-22 10:32:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:06,969 INFO L93 Difference]: Finished difference Result 7157 states and 28806 transitions. [2020-12-22 10:32:06,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 10:32:06,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-22 10:32:06,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:07,000 INFO L225 Difference]: With dead ends: 7157 [2020-12-22 10:32:07,000 INFO L226 Difference]: Without dead ends: 5563 [2020-12-22 10:32:07,000 INFO L677 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 [2020-12-22 10:32:07,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2020-12-22 10:32:07,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 4481. [2020-12-22 10:32:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4481 states. [2020-12-22 10:32:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 17410 transitions. [2020-12-22 10:32:07,288 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 17410 transitions. Word has length 18 [2020-12-22 10:32:07,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:07,289 INFO L481 AbstractCegarLoop]: Abstraction has 4481 states and 17410 transitions. [2020-12-22 10:32:07,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 10:32:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 17410 transitions. [2020-12-22 10:32:07,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 10:32:07,293 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:07,293 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:07,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 10:32:07,294 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:07,294 INFO L82 PathProgramCache]: Analyzing trace with hash 434667714, now seen corresponding path program 1 times [2020-12-22 10:32:07,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:07,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207946731] [2020-12-22 10:32:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:07,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:07,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207946731] [2020-12-22 10:32:07,410 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:07,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 10:32:07,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532520346] [2020-12-22 10:32:07,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:07,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:07,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:07,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:07,412 INFO L87 Difference]: Start difference. First operand 4481 states and 17410 transitions. Second operand 6 states. [2020-12-22 10:32:07,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:07,639 INFO L93 Difference]: Finished difference Result 5717 states and 22451 transitions. [2020-12-22 10:32:07,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 10:32:07,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-12-22 10:32:07,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:07,663 INFO L225 Difference]: With dead ends: 5717 [2020-12-22 10:32:07,663 INFO L226 Difference]: Without dead ends: 5693 [2020-12-22 10:32:07,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:07,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2020-12-22 10:32:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 4474. [2020-12-22 10:32:07,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4474 states. [2020-12-22 10:32:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4474 states to 4474 states and 17401 transitions. [2020-12-22 10:32:07,959 INFO L78 Accepts]: Start accepts. Automaton has 4474 states and 17401 transitions. Word has length 19 [2020-12-22 10:32:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:07,959 INFO L481 AbstractCegarLoop]: Abstraction has 4474 states and 17401 transitions. [2020-12-22 10:32:07,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 4474 states and 17401 transitions. [2020-12-22 10:32:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 10:32:07,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:07,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:07,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 10:32:07,963 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:07,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:07,963 INFO L82 PathProgramCache]: Analyzing trace with hash 780836658, now seen corresponding path program 2 times [2020-12-22 10:32:07,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:07,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61249870] [2020-12-22 10:32:07,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:07,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:08,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:08,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61249870] [2020-12-22 10:32:08,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:08,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 10:32:08,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914701911] [2020-12-22 10:32:08,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:08,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:08,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:08,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:08,060 INFO L87 Difference]: Start difference. First operand 4474 states and 17401 transitions. Second operand 6 states. [2020-12-22 10:32:08,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:08,191 INFO L93 Difference]: Finished difference Result 5418 states and 20587 transitions. [2020-12-22 10:32:08,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 10:32:08,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-12-22 10:32:08,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:08,220 INFO L225 Difference]: With dead ends: 5418 [2020-12-22 10:32:08,220 INFO L226 Difference]: Without dead ends: 5418 [2020-12-22 10:32:08,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:08,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2020-12-22 10:32:08,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 4453. [2020-12-22 10:32:08,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4453 states. [2020-12-22 10:32:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4453 states to 4453 states and 17345 transitions. [2020-12-22 10:32:08,431 INFO L78 Accepts]: Start accepts. Automaton has 4453 states and 17345 transitions. Word has length 19 [2020-12-22 10:32:08,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:08,431 INFO L481 AbstractCegarLoop]: Abstraction has 4453 states and 17345 transitions. [2020-12-22 10:32:08,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4453 states and 17345 transitions. [2020-12-22 10:32:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 10:32:08,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:08,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:08,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 10:32:08,435 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:08,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:08,436 INFO L82 PathProgramCache]: Analyzing trace with hash -51062012, now seen corresponding path program 1 times [2020-12-22 10:32:08,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:08,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301026610] [2020-12-22 10:32:08,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:08,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:08,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301026610] [2020-12-22 10:32:08,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:08,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 10:32:08,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317635024] [2020-12-22 10:32:08,596 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 10:32:08,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:08,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 10:32:08,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 10:32:08,597 INFO L87 Difference]: Start difference. First operand 4453 states and 17345 transitions. Second operand 5 states. [2020-12-22 10:32:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:08,741 INFO L93 Difference]: Finished difference Result 5519 states and 21448 transitions. [2020-12-22 10:32:08,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:08,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2020-12-22 10:32:08,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:08,772 INFO L225 Difference]: With dead ends: 5519 [2020-12-22 10:32:08,772 INFO L226 Difference]: Without dead ends: 5423 [2020-12-22 10:32:08,773 INFO L677 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 [2020-12-22 10:32:08,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5423 states. [2020-12-22 10:32:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5423 to 4983. [2020-12-22 10:32:08,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4983 states. [2020-12-22 10:32:08,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4983 states to 4983 states and 19584 transitions. [2020-12-22 10:32:08,952 INFO L78 Accepts]: Start accepts. Automaton has 4983 states and 19584 transitions. Word has length 20 [2020-12-22 10:32:08,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:08,952 INFO L481 AbstractCegarLoop]: Abstraction has 4983 states and 19584 transitions. [2020-12-22 10:32:08,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 10:32:08,953 INFO L276 IsEmpty]: Start isEmpty. Operand 4983 states and 19584 transitions. [2020-12-22 10:32:08,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 10:32:08,956 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:08,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:08,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 10:32:08,956 INFO L429 AbstractCegarLoop]: === Iteration 10 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:08,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:08,957 INFO L82 PathProgramCache]: Analyzing trace with hash -878852686, now seen corresponding path program 2 times [2020-12-22 10:32:08,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:08,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894218894] [2020-12-22 10:32:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:09,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:09,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894218894] [2020-12-22 10:32:09,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:09,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 10:32:09,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60492444] [2020-12-22 10:32:09,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 10:32:09,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:09,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 10:32:09,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 10:32:09,011 INFO L87 Difference]: Start difference. First operand 4983 states and 19584 transitions. Second operand 4 states. [2020-12-22 10:32:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:09,199 INFO L93 Difference]: Finished difference Result 6724 states and 25076 transitions. [2020-12-22 10:32:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 10:32:09,200 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-22 10:32:09,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:09,231 INFO L225 Difference]: With dead ends: 6724 [2020-12-22 10:32:09,232 INFO L226 Difference]: Without dead ends: 5604 [2020-12-22 10:32:09,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 10:32:09,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5604 states. [2020-12-22 10:32:09,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5604 to 5230. [2020-12-22 10:32:09,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5230 states. [2020-12-22 10:32:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5230 states to 5230 states and 19603 transitions. [2020-12-22 10:32:09,414 INFO L78 Accepts]: Start accepts. Automaton has 5230 states and 19603 transitions. Word has length 20 [2020-12-22 10:32:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:09,415 INFO L481 AbstractCegarLoop]: Abstraction has 5230 states and 19603 transitions. [2020-12-22 10:32:09,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 10:32:09,415 INFO L276 IsEmpty]: Start isEmpty. Operand 5230 states and 19603 transitions. [2020-12-22 10:32:09,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 10:32:09,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:09,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:09,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 10:32:09,422 INFO L429 AbstractCegarLoop]: === Iteration 11 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:09,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:09,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1476107581, now seen corresponding path program 1 times [2020-12-22 10:32:09,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:09,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775934693] [2020-12-22 10:32:09,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:09,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:09,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:09,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775934693] [2020-12-22 10:32:09,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:09,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 10:32:09,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331802446] [2020-12-22 10:32:09,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:09,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:09,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:09,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:09,509 INFO L87 Difference]: Start difference. First operand 5230 states and 19603 transitions. Second operand 6 states. [2020-12-22 10:32:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:09,695 INFO L93 Difference]: Finished difference Result 5940 states and 21833 transitions. [2020-12-22 10:32:09,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 10:32:09,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-22 10:32:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:09,729 INFO L225 Difference]: With dead ends: 5940 [2020-12-22 10:32:09,730 INFO L226 Difference]: Without dead ends: 5718 [2020-12-22 10:32:09,730 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:09,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5718 states. [2020-12-22 10:32:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5718 to 4887. [2020-12-22 10:32:10,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4887 states. [2020-12-22 10:32:10,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4887 states to 4887 states and 18065 transitions. [2020-12-22 10:32:10,028 INFO L78 Accepts]: Start accepts. Automaton has 4887 states and 18065 transitions. Word has length 21 [2020-12-22 10:32:10,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:10,028 INFO L481 AbstractCegarLoop]: Abstraction has 4887 states and 18065 transitions. [2020-12-22 10:32:10,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:10,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4887 states and 18065 transitions. [2020-12-22 10:32:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 10:32:10,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:10,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:10,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 10:32:10,034 INFO L429 AbstractCegarLoop]: === Iteration 12 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:10,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:10,034 INFO L82 PathProgramCache]: Analyzing trace with hash -658120403, now seen corresponding path program 1 times [2020-12-22 10:32:10,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:10,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412826014] [2020-12-22 10:32:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:10,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:10,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:10,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412826014] [2020-12-22 10:32:10,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:10,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 10:32:10,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973327038] [2020-12-22 10:32:10,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:10,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:10,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:10,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:10,116 INFO L87 Difference]: Start difference. First operand 4887 states and 18065 transitions. Second operand 6 states. [2020-12-22 10:32:10,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:10,254 INFO L93 Difference]: Finished difference Result 5654 states and 20566 transitions. [2020-12-22 10:32:10,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 10:32:10,254 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2020-12-22 10:32:10,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:10,399 INFO L225 Difference]: With dead ends: 5654 [2020-12-22 10:32:10,400 INFO L226 Difference]: Without dead ends: 5654 [2020-12-22 10:32:10,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:10,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5654 states. [2020-12-22 10:32:10,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5654 to 4899. [2020-12-22 10:32:10,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4899 states. [2020-12-22 10:32:10,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 18097 transitions. [2020-12-22 10:32:10,607 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 18097 transitions. Word has length 21 [2020-12-22 10:32:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:10,608 INFO L481 AbstractCegarLoop]: Abstraction has 4899 states and 18097 transitions. [2020-12-22 10:32:10,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 18097 transitions. [2020-12-22 10:32:10,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 10:32:10,617 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:10,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:10,618 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 10:32:10,618 INFO L429 AbstractCegarLoop]: === Iteration 13 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:10,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:10,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1403528625, now seen corresponding path program 2 times [2020-12-22 10:32:10,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:10,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049072372] [2020-12-22 10:32:10,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:10,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:10,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049072372] [2020-12-22 10:32:10,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:10,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:10,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643115678] [2020-12-22 10:32:10,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 10:32:10,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:10,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 10:32:10,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 10:32:10,732 INFO L87 Difference]: Start difference. First operand 4899 states and 18097 transitions. Second operand 7 states. [2020-12-22 10:32:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:10,876 INFO L93 Difference]: Finished difference Result 5577 states and 20321 transitions. [2020-12-22 10:32:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 10:32:10,877 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-22 10:32:10,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:10,897 INFO L225 Difference]: With dead ends: 5577 [2020-12-22 10:32:10,897 INFO L226 Difference]: Without dead ends: 5577 [2020-12-22 10:32:10,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2020-12-22 10:32:11,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 4839. [2020-12-22 10:32:11,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4839 states. [2020-12-22 10:32:11,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4839 states to 4839 states and 17895 transitions. [2020-12-22 10:32:11,161 INFO L78 Accepts]: Start accepts. Automaton has 4839 states and 17895 transitions. Word has length 21 [2020-12-22 10:32:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:11,162 INFO L481 AbstractCegarLoop]: Abstraction has 4839 states and 17895 transitions. [2020-12-22 10:32:11,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 10:32:11,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4839 states and 17895 transitions. [2020-12-22 10:32:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-22 10:32:11,166 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:11,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:11,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 10:32:11,167 INFO L429 AbstractCegarLoop]: === Iteration 14 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:11,167 INFO L82 PathProgramCache]: Analyzing trace with hash 479765811, now seen corresponding path program 2 times [2020-12-22 10:32:11,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:11,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766788829] [2020-12-22 10:32:11,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:11,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:11,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766788829] [2020-12-22 10:32:11,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:11,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 10:32:11,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918641808] [2020-12-22 10:32:11,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 10:32:11,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:11,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 10:32:11,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-22 10:32:11,229 INFO L87 Difference]: Start difference. First operand 4839 states and 17895 transitions. Second operand 7 states. [2020-12-22 10:32:11,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:11,374 INFO L93 Difference]: Finished difference Result 5375 states and 19365 transitions. [2020-12-22 10:32:11,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:11,375 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-12-22 10:32:11,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:11,390 INFO L225 Difference]: With dead ends: 5375 [2020-12-22 10:32:11,390 INFO L226 Difference]: Without dead ends: 5140 [2020-12-22 10:32:11,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:11,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2020-12-22 10:32:11,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 4770. [2020-12-22 10:32:11,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4770 states. [2020-12-22 10:32:11,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4770 states to 4770 states and 17663 transitions. [2020-12-22 10:32:11,537 INFO L78 Accepts]: Start accepts. Automaton has 4770 states and 17663 transitions. Word has length 21 [2020-12-22 10:32:11,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:11,537 INFO L481 AbstractCegarLoop]: Abstraction has 4770 states and 17663 transitions. [2020-12-22 10:32:11,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 10:32:11,538 INFO L276 IsEmpty]: Start isEmpty. Operand 4770 states and 17663 transitions. [2020-12-22 10:32:11,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 10:32:11,543 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:11,543 INFO L422 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] [2020-12-22 10:32:11,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 10:32:11,543 INFO L429 AbstractCegarLoop]: === Iteration 15 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:11,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:11,544 INFO L82 PathProgramCache]: Analyzing trace with hash -2022418832, now seen corresponding path program 1 times [2020-12-22 10:32:11,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:11,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745388076] [2020-12-22 10:32:11,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:11,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745388076] [2020-12-22 10:32:11,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:11,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:11,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601567437] [2020-12-22 10:32:11,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 10:32:11,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:11,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 10:32:11,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:11,649 INFO L87 Difference]: Start difference. First operand 4770 states and 17663 transitions. Second operand 8 states. [2020-12-22 10:32:12,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:12,084 INFO L93 Difference]: Finished difference Result 6062 states and 22739 transitions. [2020-12-22 10:32:12,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 10:32:12,084 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-12-22 10:32:12,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:12,102 INFO L225 Difference]: With dead ends: 6062 [2020-12-22 10:32:12,103 INFO L226 Difference]: Without dead ends: 5902 [2020-12-22 10:32:12,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5902 states. [2020-12-22 10:32:12,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5902 to 5126. [2020-12-22 10:32:12,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2020-12-22 10:32:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 19402 transitions. [2020-12-22 10:32:12,272 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 19402 transitions. Word has length 22 [2020-12-22 10:32:12,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:12,272 INFO L481 AbstractCegarLoop]: Abstraction has 5126 states and 19402 transitions. [2020-12-22 10:32:12,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 10:32:12,272 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 19402 transitions. [2020-12-22 10:32:12,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 10:32:12,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:12,279 INFO L422 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] [2020-12-22 10:32:12,280 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 10:32:12,280 INFO L429 AbstractCegarLoop]: === Iteration 16 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:12,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:12,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1501683984, now seen corresponding path program 2 times [2020-12-22 10:32:12,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:12,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6594460] [2020-12-22 10:32:12,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:12,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:12,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6594460] [2020-12-22 10:32:12,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:12,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 10:32:12,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351253646] [2020-12-22 10:32:12,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 10:32:12,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:12,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 10:32:12,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:12,467 INFO L87 Difference]: Start difference. First operand 5126 states and 19402 transitions. Second operand 9 states. [2020-12-22 10:32:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:12,883 INFO L93 Difference]: Finished difference Result 7825 states and 30453 transitions. [2020-12-22 10:32:12,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:12,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-22 10:32:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:12,919 INFO L225 Difference]: With dead ends: 7825 [2020-12-22 10:32:12,920 INFO L226 Difference]: Without dead ends: 7665 [2020-12-22 10:32:12,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:12,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7665 states. [2020-12-22 10:32:13,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7665 to 5124. [2020-12-22 10:32:13,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5124 states. [2020-12-22 10:32:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5124 states to 5124 states and 19398 transitions. [2020-12-22 10:32:13,178 INFO L78 Accepts]: Start accepts. Automaton has 5124 states and 19398 transitions. Word has length 22 [2020-12-22 10:32:13,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:13,178 INFO L481 AbstractCegarLoop]: Abstraction has 5124 states and 19398 transitions. [2020-12-22 10:32:13,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 10:32:13,178 INFO L276 IsEmpty]: Start isEmpty. Operand 5124 states and 19398 transitions. [2020-12-22 10:32:13,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 10:32:13,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:13,186 INFO L422 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] [2020-12-22 10:32:13,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 10:32:13,186 INFO L429 AbstractCegarLoop]: === Iteration 17 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:13,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:13,187 INFO L82 PathProgramCache]: Analyzing trace with hash 1670308188, now seen corresponding path program 3 times [2020-12-22 10:32:13,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:13,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354644965] [2020-12-22 10:32:13,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:13,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354644965] [2020-12-22 10:32:13,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:13,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 10:32:13,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431909981] [2020-12-22 10:32:13,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 10:32:13,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:13,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 10:32:13,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:13,324 INFO L87 Difference]: Start difference. First operand 5124 states and 19398 transitions. Second operand 9 states. [2020-12-22 10:32:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:13,651 INFO L93 Difference]: Finished difference Result 6406 states and 24448 transitions. [2020-12-22 10:32:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:13,651 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2020-12-22 10:32:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:13,676 INFO L225 Difference]: With dead ends: 6406 [2020-12-22 10:32:13,676 INFO L226 Difference]: Without dead ends: 6246 [2020-12-22 10:32:13,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6246 states. [2020-12-22 10:32:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6246 to 5120. [2020-12-22 10:32:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5120 states. [2020-12-22 10:32:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5120 states to 5120 states and 19386 transitions. [2020-12-22 10:32:13,887 INFO L78 Accepts]: Start accepts. Automaton has 5120 states and 19386 transitions. Word has length 22 [2020-12-22 10:32:13,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:13,888 INFO L481 AbstractCegarLoop]: Abstraction has 5120 states and 19386 transitions. [2020-12-22 10:32:13,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 10:32:13,888 INFO L276 IsEmpty]: Start isEmpty. Operand 5120 states and 19386 transitions. [2020-12-22 10:32:13,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 10:32:13,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:13,895 INFO L422 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] [2020-12-22 10:32:13,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 10:32:13,896 INFO L429 AbstractCegarLoop]: === Iteration 18 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:13,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:13,897 INFO L82 PathProgramCache]: Analyzing trace with hash -1267239594, now seen corresponding path program 4 times [2020-12-22 10:32:13,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:13,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499244155] [2020-12-22 10:32:13,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:14,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:14,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499244155] [2020-12-22 10:32:14,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:14,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 10:32:14,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371381065] [2020-12-22 10:32:14,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 10:32:14,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:14,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 10:32:14,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:14,181 INFO L87 Difference]: Start difference. First operand 5120 states and 19386 transitions. Second operand 11 states. [2020-12-22 10:32:14,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:14,953 INFO L93 Difference]: Finished difference Result 6594 states and 25441 transitions. [2020-12-22 10:32:14,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 10:32:14,953 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-12-22 10:32:14,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:14,977 INFO L225 Difference]: With dead ends: 6594 [2020-12-22 10:32:14,977 INFO L226 Difference]: Without dead ends: 6496 [2020-12-22 10:32:14,978 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-12-22 10:32:15,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2020-12-22 10:32:15,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 5108. [2020-12-22 10:32:15,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5108 states. [2020-12-22 10:32:15,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5108 states to 5108 states and 19355 transitions. [2020-12-22 10:32:15,168 INFO L78 Accepts]: Start accepts. Automaton has 5108 states and 19355 transitions. Word has length 22 [2020-12-22 10:32:15,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:15,168 INFO L481 AbstractCegarLoop]: Abstraction has 5108 states and 19355 transitions. [2020-12-22 10:32:15,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 10:32:15,169 INFO L276 IsEmpty]: Start isEmpty. Operand 5108 states and 19355 transitions. [2020-12-22 10:32:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:15,178 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:15,178 INFO L422 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] [2020-12-22 10:32:15,178 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 10:32:15,178 INFO L429 AbstractCegarLoop]: === Iteration 19 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:15,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:15,179 INFO L82 PathProgramCache]: Analyzing trace with hash -335513452, now seen corresponding path program 1 times [2020-12-22 10:32:15,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:15,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991558825] [2020-12-22 10:32:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:15,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:15,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991558825] [2020-12-22 10:32:15,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:15,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 10:32:15,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863203250] [2020-12-22 10:32:15,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 10:32:15,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:15,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 10:32:15,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 10:32:15,221 INFO L87 Difference]: Start difference. First operand 5108 states and 19355 transitions. Second operand 5 states. [2020-12-22 10:32:15,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:15,351 INFO L93 Difference]: Finished difference Result 5740 states and 21369 transitions. [2020-12-22 10:32:15,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:15,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-12-22 10:32:15,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:15,365 INFO L225 Difference]: With dead ends: 5740 [2020-12-22 10:32:15,366 INFO L226 Difference]: Without dead ends: 5538 [2020-12-22 10:32:15,366 INFO L677 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 [2020-12-22 10:32:15,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5538 states. [2020-12-22 10:32:15,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5288. [2020-12-22 10:32:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5288 states. [2020-12-22 10:32:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 19964 transitions. [2020-12-22 10:32:15,552 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 19964 transitions. Word has length 23 [2020-12-22 10:32:15,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:15,553 INFO L481 AbstractCegarLoop]: Abstraction has 5288 states and 19964 transitions. [2020-12-22 10:32:15,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 10:32:15,553 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 19964 transitions. [2020-12-22 10:32:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:15,562 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:15,563 INFO L422 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] [2020-12-22 10:32:15,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 10:32:15,563 INFO L429 AbstractCegarLoop]: === Iteration 20 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:15,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:15,564 INFO L82 PathProgramCache]: Analyzing trace with hash 654731046, now seen corresponding path program 2 times [2020-12-22 10:32:15,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:15,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060813241] [2020-12-22 10:32:15,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:15,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060813241] [2020-12-22 10:32:15,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:15,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 10:32:15,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687453071] [2020-12-22 10:32:15,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:15,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:15,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:15,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:15,649 INFO L87 Difference]: Start difference. First operand 5288 states and 19964 transitions. Second operand 6 states. [2020-12-22 10:32:15,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:15,845 INFO L93 Difference]: Finished difference Result 5634 states and 20831 transitions. [2020-12-22 10:32:15,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 10:32:15,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-12-22 10:32:15,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:15,863 INFO L225 Difference]: With dead ends: 5634 [2020-12-22 10:32:15,863 INFO L226 Difference]: Without dead ends: 5432 [2020-12-22 10:32:15,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:15,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5432 states. [2020-12-22 10:32:16,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5432 to 5044. [2020-12-22 10:32:16,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5044 states. [2020-12-22 10:32:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 18964 transitions. [2020-12-22 10:32:16,028 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 18964 transitions. Word has length 23 [2020-12-22 10:32:16,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:16,029 INFO L481 AbstractCegarLoop]: Abstraction has 5044 states and 18964 transitions. [2020-12-22 10:32:16,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:16,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 18964 transitions. [2020-12-22 10:32:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:16,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:16,036 INFO L422 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] [2020-12-22 10:32:16,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 10:32:16,037 INFO L429 AbstractCegarLoop]: === Iteration 21 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:16,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:16,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1393943423, now seen corresponding path program 1 times [2020-12-22 10:32:16,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:16,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449604872] [2020-12-22 10:32:16,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:16,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:16,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449604872] [2020-12-22 10:32:16,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:16,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 10:32:16,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168638756] [2020-12-22 10:32:16,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:16,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:16,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:16,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:16,093 INFO L87 Difference]: Start difference. First operand 5044 states and 18964 transitions. Second operand 6 states. [2020-12-22 10:32:16,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:16,210 INFO L93 Difference]: Finished difference Result 5955 states and 22016 transitions. [2020-12-22 10:32:16,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 10:32:16,211 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-12-22 10:32:16,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:16,228 INFO L225 Difference]: With dead ends: 5955 [2020-12-22 10:32:16,228 INFO L226 Difference]: Without dead ends: 5444 [2020-12-22 10:32:16,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:16,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5444 states. [2020-12-22 10:32:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5444 to 4599. [2020-12-22 10:32:16,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4599 states. [2020-12-22 10:32:16,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4599 states to 4599 states and 17009 transitions. [2020-12-22 10:32:16,378 INFO L78 Accepts]: Start accepts. Automaton has 4599 states and 17009 transitions. Word has length 23 [2020-12-22 10:32:16,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:16,379 INFO L481 AbstractCegarLoop]: Abstraction has 4599 states and 17009 transitions. [2020-12-22 10:32:16,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:16,379 INFO L276 IsEmpty]: Start isEmpty. Operand 4599 states and 17009 transitions. [2020-12-22 10:32:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:16,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:16,385 INFO L422 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] [2020-12-22 10:32:16,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 10:32:16,386 INFO L429 AbstractCegarLoop]: === Iteration 22 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:16,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1259322281, now seen corresponding path program 2 times [2020-12-22 10:32:16,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:16,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678077361] [2020-12-22 10:32:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:16,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:16,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678077361] [2020-12-22 10:32:16,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:16,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:16,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893589401] [2020-12-22 10:32:16,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 10:32:16,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:16,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 10:32:16,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-22 10:32:16,464 INFO L87 Difference]: Start difference. First operand 4599 states and 17009 transitions. Second operand 7 states. [2020-12-22 10:32:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:16,616 INFO L93 Difference]: Finished difference Result 5350 states and 19634 transitions. [2020-12-22 10:32:16,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 10:32:16,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 10:32:16,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:16,634 INFO L225 Difference]: With dead ends: 5350 [2020-12-22 10:32:16,635 INFO L226 Difference]: Without dead ends: 5181 [2020-12-22 10:32:16,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:16,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5181 states. [2020-12-22 10:32:16,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5181 to 4587. [2020-12-22 10:32:16,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4587 states. [2020-12-22 10:32:16,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4587 states to 4587 states and 16982 transitions. [2020-12-22 10:32:16,793 INFO L78 Accepts]: Start accepts. Automaton has 4587 states and 16982 transitions. Word has length 23 [2020-12-22 10:32:16,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:16,794 INFO L481 AbstractCegarLoop]: Abstraction has 4587 states and 16982 transitions. [2020-12-22 10:32:16,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 10:32:16,794 INFO L276 IsEmpty]: Start isEmpty. Operand 4587 states and 16982 transitions. [2020-12-22 10:32:16,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:16,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:16,800 INFO L422 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] [2020-12-22 10:32:16,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 10:32:16,801 INFO L429 AbstractCegarLoop]: === Iteration 23 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:16,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:16,801 INFO L82 PathProgramCache]: Analyzing trace with hash -337085191, now seen corresponding path program 3 times [2020-12-22 10:32:16,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:16,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939074677] [2020-12-22 10:32:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:16,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:16,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939074677] [2020-12-22 10:32:16,878 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:16,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:16,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017823399] [2020-12-22 10:32:16,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 10:32:16,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:16,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 10:32:16,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:16,880 INFO L87 Difference]: Start difference. First operand 4587 states and 16982 transitions. Second operand 8 states. [2020-12-22 10:32:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:17,175 INFO L93 Difference]: Finished difference Result 6441 states and 23994 transitions. [2020-12-22 10:32:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:17,176 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-12-22 10:32:17,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:17,195 INFO L225 Difference]: With dead ends: 6441 [2020-12-22 10:32:17,195 INFO L226 Difference]: Without dead ends: 6333 [2020-12-22 10:32:17,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:17,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6333 states. [2020-12-22 10:32:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6333 to 4776. [2020-12-22 10:32:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4776 states. [2020-12-22 10:32:17,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4776 states to 4776 states and 17749 transitions. [2020-12-22 10:32:17,316 INFO L78 Accepts]: Start accepts. Automaton has 4776 states and 17749 transitions. Word has length 23 [2020-12-22 10:32:17,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:17,317 INFO L481 AbstractCegarLoop]: Abstraction has 4776 states and 17749 transitions. [2020-12-22 10:32:17,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 10:32:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 4776 states and 17749 transitions. [2020-12-22 10:32:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:17,323 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:17,324 INFO L422 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] [2020-12-22 10:32:17,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 10:32:17,324 INFO L429 AbstractCegarLoop]: === Iteration 24 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:17,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:17,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1845797673, now seen corresponding path program 4 times [2020-12-22 10:32:17,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:17,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496007441] [2020-12-22 10:32:17,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:17,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:17,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496007441] [2020-12-22 10:32:17,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:17,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:17,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489603236] [2020-12-22 10:32:17,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 10:32:17,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:17,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 10:32:17,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:17,403 INFO L87 Difference]: Start difference. First operand 4776 states and 17749 transitions. Second operand 8 states. [2020-12-22 10:32:17,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:17,686 INFO L93 Difference]: Finished difference Result 5607 states and 20671 transitions. [2020-12-22 10:32:17,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:17,686 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-12-22 10:32:17,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:17,703 INFO L225 Difference]: With dead ends: 5607 [2020-12-22 10:32:17,703 INFO L226 Difference]: Without dead ends: 5499 [2020-12-22 10:32:17,703 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:17,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5499 states. [2020-12-22 10:32:17,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5499 to 4744. [2020-12-22 10:32:17,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4744 states. [2020-12-22 10:32:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4744 states to 4744 states and 17579 transitions. [2020-12-22 10:32:17,830 INFO L78 Accepts]: Start accepts. Automaton has 4744 states and 17579 transitions. Word has length 23 [2020-12-22 10:32:17,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:17,830 INFO L481 AbstractCegarLoop]: Abstraction has 4744 states and 17579 transitions. [2020-12-22 10:32:17,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 10:32:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 4744 states and 17579 transitions. [2020-12-22 10:32:17,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:17,836 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:17,836 INFO L422 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] [2020-12-22 10:32:17,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 10:32:17,836 INFO L429 AbstractCegarLoop]: === Iteration 25 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:17,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:17,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1362361899, now seen corresponding path program 1 times [2020-12-22 10:32:17,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:17,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032040603] [2020-12-22 10:32:17,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:17,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:18,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:18,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032040603] [2020-12-22 10:32:18,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:18,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 10:32:18,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957204171] [2020-12-22 10:32:18,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 10:32:18,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:18,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 10:32:18,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:18,103 INFO L87 Difference]: Start difference. First operand 4744 states and 17579 transitions. Second operand 11 states. [2020-12-22 10:32:18,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:18,892 INFO L93 Difference]: Finished difference Result 5846 states and 21883 transitions. [2020-12-22 10:32:18,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 10:32:18,893 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 23 [2020-12-22 10:32:18,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:18,916 INFO L225 Difference]: With dead ends: 5846 [2020-12-22 10:32:18,916 INFO L226 Difference]: Without dead ends: 5680 [2020-12-22 10:32:18,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2020-12-22 10:32:18,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5680 states. [2020-12-22 10:32:19,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5680 to 4707. [2020-12-22 10:32:19,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4707 states. [2020-12-22 10:32:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4707 states to 4707 states and 17526 transitions. [2020-12-22 10:32:19,056 INFO L78 Accepts]: Start accepts. Automaton has 4707 states and 17526 transitions. Word has length 23 [2020-12-22 10:32:19,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:19,057 INFO L481 AbstractCegarLoop]: Abstraction has 4707 states and 17526 transitions. [2020-12-22 10:32:19,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 10:32:19,057 INFO L276 IsEmpty]: Start isEmpty. Operand 4707 states and 17526 transitions. [2020-12-22 10:32:19,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:19,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:19,062 INFO L422 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] [2020-12-22 10:32:19,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 10:32:19,062 INFO L429 AbstractCegarLoop]: === Iteration 26 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:19,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:19,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1508198191, now seen corresponding path program 5 times [2020-12-22 10:32:19,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:19,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851101295] [2020-12-22 10:32:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:19,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:19,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851101295] [2020-12-22 10:32:19,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:19,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 10:32:19,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911866882] [2020-12-22 10:32:19,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 10:32:19,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:19,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 10:32:19,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:19,198 INFO L87 Difference]: Start difference. First operand 4707 states and 17526 transitions. Second operand 10 states. [2020-12-22 10:32:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:19,635 INFO L93 Difference]: Finished difference Result 5834 states and 21729 transitions. [2020-12-22 10:32:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:19,635 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-12-22 10:32:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:19,650 INFO L225 Difference]: With dead ends: 5834 [2020-12-22 10:32:19,650 INFO L226 Difference]: Without dead ends: 5792 [2020-12-22 10:32:19,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:19,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5792 states. [2020-12-22 10:32:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5792 to 4835. [2020-12-22 10:32:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4835 states. [2020-12-22 10:32:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4835 states to 4835 states and 18085 transitions. [2020-12-22 10:32:19,750 INFO L78 Accepts]: Start accepts. Automaton has 4835 states and 18085 transitions. Word has length 23 [2020-12-22 10:32:19,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:19,750 INFO L481 AbstractCegarLoop]: Abstraction has 4835 states and 18085 transitions. [2020-12-22 10:32:19,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 10:32:19,750 INFO L276 IsEmpty]: Start isEmpty. Operand 4835 states and 18085 transitions. [2020-12-22 10:32:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:19,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:19,755 INFO L422 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] [2020-12-22 10:32:19,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 10:32:19,755 INFO L429 AbstractCegarLoop]: === Iteration 27 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:19,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:19,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1172688247, now seen corresponding path program 6 times [2020-12-22 10:32:19,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:19,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695911849] [2020-12-22 10:32:19,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:19,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695911849] [2020-12-22 10:32:19,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:19,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 10:32:19,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772949894] [2020-12-22 10:32:19,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 10:32:19,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:19,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 10:32:19,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:19,853 INFO L87 Difference]: Start difference. First operand 4835 states and 18085 transitions. Second operand 8 states. [2020-12-22 10:32:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:20,009 INFO L93 Difference]: Finished difference Result 4832 states and 18017 transitions. [2020-12-22 10:32:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 10:32:20,009 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-12-22 10:32:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:20,021 INFO L225 Difference]: With dead ends: 4832 [2020-12-22 10:32:20,022 INFO L226 Difference]: Without dead ends: 4832 [2020-12-22 10:32:20,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4832 states. [2020-12-22 10:32:20,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4832 to 4441. [2020-12-22 10:32:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4441 states. [2020-12-22 10:32:20,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4441 states to 4441 states and 16520 transitions. [2020-12-22 10:32:20,117 INFO L78 Accepts]: Start accepts. Automaton has 4441 states and 16520 transitions. Word has length 23 [2020-12-22 10:32:20,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:20,117 INFO L481 AbstractCegarLoop]: Abstraction has 4441 states and 16520 transitions. [2020-12-22 10:32:20,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 10:32:20,117 INFO L276 IsEmpty]: Start isEmpty. Operand 4441 states and 16520 transitions. [2020-12-22 10:32:20,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 10:32:20,121 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:20,121 INFO L422 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] [2020-12-22 10:32:20,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 10:32:20,121 INFO L429 AbstractCegarLoop]: === Iteration 28 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:20,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:20,122 INFO L82 PathProgramCache]: Analyzing trace with hash -28113609, now seen corresponding path program 1 times [2020-12-22 10:32:20,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:20,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636034160] [2020-12-22 10:32:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:20,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636034160] [2020-12-22 10:32:20,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:20,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:20,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128076616] [2020-12-22 10:32:20,196 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 10:32:20,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:20,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 10:32:20,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:20,197 INFO L87 Difference]: Start difference. First operand 4441 states and 16520 transitions. Second operand 8 states. [2020-12-22 10:32:20,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:20,379 INFO L93 Difference]: Finished difference Result 4773 states and 17401 transitions. [2020-12-22 10:32:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:20,380 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-12-22 10:32:20,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:20,394 INFO L225 Difference]: With dead ends: 4773 [2020-12-22 10:32:20,394 INFO L226 Difference]: Without dead ends: 4444 [2020-12-22 10:32:20,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:20,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4444 states. [2020-12-22 10:32:20,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4444 to 3748. [2020-12-22 10:32:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3748 states. [2020-12-22 10:32:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 13965 transitions. [2020-12-22 10:32:20,474 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 13965 transitions. Word has length 23 [2020-12-22 10:32:20,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:20,474 INFO L481 AbstractCegarLoop]: Abstraction has 3748 states and 13965 transitions. [2020-12-22 10:32:20,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 10:32:20,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 13965 transitions. [2020-12-22 10:32:20,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 10:32:20,480 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:20,480 INFO L422 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] [2020-12-22 10:32:20,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 10:32:20,480 INFO L429 AbstractCegarLoop]: === Iteration 29 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:20,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:20,481 INFO L82 PathProgramCache]: Analyzing trace with hash -2056704833, now seen corresponding path program 1 times [2020-12-22 10:32:20,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:20,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383392435] [2020-12-22 10:32:20,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:20,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:20,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383392435] [2020-12-22 10:32:20,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:20,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 10:32:20,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149471608] [2020-12-22 10:32:20,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 10:32:20,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:20,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 10:32:20,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:20,799 INFO L87 Difference]: Start difference. First operand 3748 states and 13965 transitions. Second operand 12 states. [2020-12-22 10:32:21,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:21,830 INFO L93 Difference]: Finished difference Result 4511 states and 17017 transitions. [2020-12-22 10:32:21,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 10:32:21,831 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-12-22 10:32:21,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:21,843 INFO L225 Difference]: With dead ends: 4511 [2020-12-22 10:32:21,843 INFO L226 Difference]: Without dead ends: 4283 [2020-12-22 10:32:21,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-12-22 10:32:21,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2020-12-22 10:32:21,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 3048. [2020-12-22 10:32:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3048 states. [2020-12-22 10:32:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 11102 transitions. [2020-12-22 10:32:21,915 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 11102 transitions. Word has length 25 [2020-12-22 10:32:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:21,915 INFO L481 AbstractCegarLoop]: Abstraction has 3048 states and 11102 transitions. [2020-12-22 10:32:21,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 10:32:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 11102 transitions. [2020-12-22 10:32:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:21,920 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:21,920 INFO L422 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] [2020-12-22 10:32:21,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 10:32:21,920 INFO L429 AbstractCegarLoop]: === Iteration 30 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:21,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:21,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1187319537, now seen corresponding path program 1 times [2020-12-22 10:32:21,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:21,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341930841] [2020-12-22 10:32:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:22,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:22,015 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341930841] [2020-12-22 10:32:22,015 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:22,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:22,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631042462] [2020-12-22 10:32:22,016 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 10:32:22,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:22,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 10:32:22,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:22,017 INFO L87 Difference]: Start difference. First operand 3048 states and 11102 transitions. Second operand 8 states. [2020-12-22 10:32:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:22,378 INFO L93 Difference]: Finished difference Result 3362 states and 12023 transitions. [2020-12-22 10:32:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 10:32:22,378 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2020-12-22 10:32:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:22,387 INFO L225 Difference]: With dead ends: 3362 [2020-12-22 10:32:22,387 INFO L226 Difference]: Without dead ends: 3242 [2020-12-22 10:32:22,388 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3242 states. [2020-12-22 10:32:22,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3242 to 2875. [2020-12-22 10:32:22,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2875 states. [2020-12-22 10:32:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 10403 transitions. [2020-12-22 10:32:22,442 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 10403 transitions. Word has length 26 [2020-12-22 10:32:22,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:22,442 INFO L481 AbstractCegarLoop]: Abstraction has 2875 states and 10403 transitions. [2020-12-22 10:32:22,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 10:32:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 10403 transitions. [2020-12-22 10:32:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:22,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:22,446 INFO L422 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] [2020-12-22 10:32:22,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 10:32:22,447 INFO L429 AbstractCegarLoop]: === Iteration 31 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:22,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:22,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1028221071, now seen corresponding path program 2 times [2020-12-22 10:32:22,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:22,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797069039] [2020-12-22 10:32:22,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:22,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:22,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797069039] [2020-12-22 10:32:22,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:22,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 10:32:22,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369712312] [2020-12-22 10:32:22,584 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 10:32:22,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:22,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 10:32:22,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:22,586 INFO L87 Difference]: Start difference. First operand 2875 states and 10403 transitions. Second operand 9 states. [2020-12-22 10:32:23,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:23,037 INFO L93 Difference]: Finished difference Result 3797 states and 13773 transitions. [2020-12-22 10:32:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 10:32:23,038 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-12-22 10:32:23,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:23,051 INFO L225 Difference]: With dead ends: 3797 [2020-12-22 10:32:23,051 INFO L226 Difference]: Without dead ends: 3725 [2020-12-22 10:32:23,052 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3725 states. [2020-12-22 10:32:23,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3725 to 3043. [2020-12-22 10:32:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3043 states. [2020-12-22 10:32:23,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3043 states to 3043 states and 11114 transitions. [2020-12-22 10:32:23,144 INFO L78 Accepts]: Start accepts. Automaton has 3043 states and 11114 transitions. Word has length 26 [2020-12-22 10:32:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:23,145 INFO L481 AbstractCegarLoop]: Abstraction has 3043 states and 11114 transitions. [2020-12-22 10:32:23,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 10:32:23,145 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 11114 transitions. [2020-12-22 10:32:23,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:23,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:23,152 INFO L422 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] [2020-12-22 10:32:23,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 10:32:23,152 INFO L429 AbstractCegarLoop]: === Iteration 32 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:23,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:23,153 INFO L82 PathProgramCache]: Analyzing trace with hash 184481335, now seen corresponding path program 1 times [2020-12-22 10:32:23,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:23,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918579205] [2020-12-22 10:32:23,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:23,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:23,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918579205] [2020-12-22 10:32:23,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:23,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 10:32:23,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893148518] [2020-12-22 10:32:23,316 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 10:32:23,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:23,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 10:32:23,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:23,317 INFO L87 Difference]: Start difference. First operand 3043 states and 11114 transitions. Second operand 9 states. [2020-12-22 10:32:23,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:23,731 INFO L93 Difference]: Finished difference Result 3389 states and 12128 transitions. [2020-12-22 10:32:23,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:23,732 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-12-22 10:32:23,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:23,741 INFO L225 Difference]: With dead ends: 3389 [2020-12-22 10:32:23,742 INFO L226 Difference]: Without dead ends: 3267 [2020-12-22 10:32:23,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:23,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3267 states. [2020-12-22 10:32:23,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3267 to 2868. [2020-12-22 10:32:23,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2868 states. [2020-12-22 10:32:23,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2868 states to 2868 states and 10386 transitions. [2020-12-22 10:32:23,799 INFO L78 Accepts]: Start accepts. Automaton has 2868 states and 10386 transitions. Word has length 26 [2020-12-22 10:32:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:23,799 INFO L481 AbstractCegarLoop]: Abstraction has 2868 states and 10386 transitions. [2020-12-22 10:32:23,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 10:32:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2868 states and 10386 transitions. [2020-12-22 10:32:23,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:23,805 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:23,805 INFO L422 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] [2020-12-22 10:32:23,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 10:32:23,805 INFO L429 AbstractCegarLoop]: === Iteration 33 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:23,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:23,805 INFO L82 PathProgramCache]: Analyzing trace with hash 2021023853, now seen corresponding path program 3 times [2020-12-22 10:32:23,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:23,806 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444158694] [2020-12-22 10:32:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:23,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:23,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444158694] [2020-12-22 10:32:23,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:23,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 10:32:23,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450782288] [2020-12-22 10:32:23,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 10:32:23,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:23,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 10:32:23,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:23,926 INFO L87 Difference]: Start difference. First operand 2868 states and 10386 transitions. Second operand 10 states. [2020-12-22 10:32:24,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:24,229 INFO L93 Difference]: Finished difference Result 4342 states and 16142 transitions. [2020-12-22 10:32:24,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:24,229 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-12-22 10:32:24,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:24,240 INFO L225 Difference]: With dead ends: 4342 [2020-12-22 10:32:24,240 INFO L226 Difference]: Without dead ends: 4270 [2020-12-22 10:32:24,241 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-12-22 10:32:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4270 states. [2020-12-22 10:32:24,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4270 to 3030. [2020-12-22 10:32:24,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3030 states. [2020-12-22 10:32:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 11079 transitions. [2020-12-22 10:32:24,310 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 11079 transitions. Word has length 26 [2020-12-22 10:32:24,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:24,310 INFO L481 AbstractCegarLoop]: Abstraction has 3030 states and 11079 transitions. [2020-12-22 10:32:24,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 10:32:24,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 11079 transitions. [2020-12-22 10:32:24,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:24,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:24,316 INFO L422 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] [2020-12-22 10:32:24,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 10:32:24,316 INFO L429 AbstractCegarLoop]: === Iteration 34 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:24,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:24,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1061241037, now seen corresponding path program 2 times [2020-12-22 10:32:24,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:24,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207728626] [2020-12-22 10:32:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:24,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:24,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207728626] [2020-12-22 10:32:24,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:24,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 10:32:24,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107646971] [2020-12-22 10:32:24,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 10:32:24,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:24,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 10:32:24,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:24,519 INFO L87 Difference]: Start difference. First operand 3030 states and 11079 transitions. Second operand 10 states. [2020-12-22 10:32:25,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:25,026 INFO L93 Difference]: Finished difference Result 3755 states and 13672 transitions. [2020-12-22 10:32:25,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:25,027 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-12-22 10:32:25,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:25,036 INFO L225 Difference]: With dead ends: 3755 [2020-12-22 10:32:25,036 INFO L226 Difference]: Without dead ends: 3634 [2020-12-22 10:32:25,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:25,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2020-12-22 10:32:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3010. [2020-12-22 10:32:25,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3010 states. [2020-12-22 10:32:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3010 states to 3010 states and 11010 transitions. [2020-12-22 10:32:25,094 INFO L78 Accepts]: Start accepts. Automaton has 3010 states and 11010 transitions. Word has length 26 [2020-12-22 10:32:25,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:25,095 INFO L481 AbstractCegarLoop]: Abstraction has 3010 states and 11010 transitions. [2020-12-22 10:32:25,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 10:32:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3010 states and 11010 transitions. [2020-12-22 10:32:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:25,099 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:25,099 INFO L422 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] [2020-12-22 10:32:25,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 10:32:25,100 INFO L429 AbstractCegarLoop]: === Iteration 35 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1632342331, now seen corresponding path program 4 times [2020-12-22 10:32:25,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:25,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409585646] [2020-12-22 10:32:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:25,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:25,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409585646] [2020-12-22 10:32:25,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:25,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 10:32:25,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812122689] [2020-12-22 10:32:25,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 10:32:25,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:25,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 10:32:25,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:25,230 INFO L87 Difference]: Start difference. First operand 3010 states and 11010 transitions. Second operand 10 states. [2020-12-22 10:32:25,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:25,492 INFO L93 Difference]: Finished difference Result 3360 states and 12055 transitions. [2020-12-22 10:32:25,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:25,493 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-12-22 10:32:25,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:25,503 INFO L225 Difference]: With dead ends: 3360 [2020-12-22 10:32:25,503 INFO L226 Difference]: Without dead ends: 3240 [2020-12-22 10:32:25,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:25,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2020-12-22 10:32:25,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 2856. [2020-12-22 10:32:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2856 states. [2020-12-22 10:32:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 10348 transitions. [2020-12-22 10:32:25,592 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 10348 transitions. Word has length 26 [2020-12-22 10:32:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:25,592 INFO L481 AbstractCegarLoop]: Abstraction has 2856 states and 10348 transitions. [2020-12-22 10:32:25,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 10:32:25,592 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 10348 transitions. [2020-12-22 10:32:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:25,599 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:25,599 INFO L422 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] [2020-12-22 10:32:25,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 10:32:25,599 INFO L429 AbstractCegarLoop]: === Iteration 36 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:25,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1015231137, now seen corresponding path program 5 times [2020-12-22 10:32:25,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:25,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202817638] [2020-12-22 10:32:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:25,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:25,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202817638] [2020-12-22 10:32:25,897 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:25,897 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 10:32:25,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015788873] [2020-12-22 10:32:25,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 10:32:25,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:25,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 10:32:25,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:25,899 INFO L87 Difference]: Start difference. First operand 2856 states and 10348 transitions. Second operand 12 states. [2020-12-22 10:32:26,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:26,348 INFO L93 Difference]: Finished difference Result 3631 states and 13193 transitions. [2020-12-22 10:32:26,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:26,348 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-12-22 10:32:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:26,357 INFO L225 Difference]: With dead ends: 3631 [2020-12-22 10:32:26,357 INFO L226 Difference]: Without dead ends: 3559 [2020-12-22 10:32:26,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:26,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2020-12-22 10:32:26,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 2905. [2020-12-22 10:32:26,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2905 states. [2020-12-22 10:32:26,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2905 states to 2905 states and 10605 transitions. [2020-12-22 10:32:26,414 INFO L78 Accepts]: Start accepts. Automaton has 2905 states and 10605 transitions. Word has length 26 [2020-12-22 10:32:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:26,415 INFO L481 AbstractCegarLoop]: Abstraction has 2905 states and 10605 transitions. [2020-12-22 10:32:26,415 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 10:32:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2905 states and 10605 transitions. [2020-12-22 10:32:26,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:26,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:26,419 INFO L422 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] [2020-12-22 10:32:26,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 10:32:26,419 INFO L429 AbstractCegarLoop]: === Iteration 37 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:26,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:26,420 INFO L82 PathProgramCache]: Analyzing trace with hash -893726613, now seen corresponding path program 3 times [2020-12-22 10:32:26,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:26,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34854975] [2020-12-22 10:32:26,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:26,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:26,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34854975] [2020-12-22 10:32:26,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:26,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 10:32:26,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040234154] [2020-12-22 10:32:26,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 10:32:26,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:26,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 10:32:26,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:26,708 INFO L87 Difference]: Start difference. First operand 2905 states and 10605 transitions. Second operand 12 states. [2020-12-22 10:32:27,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:27,183 INFO L93 Difference]: Finished difference Result 3537 states and 12449 transitions. [2020-12-22 10:32:27,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 10:32:27,184 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 26 [2020-12-22 10:32:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:27,194 INFO L225 Difference]: With dead ends: 3537 [2020-12-22 10:32:27,194 INFO L226 Difference]: Without dead ends: 3439 [2020-12-22 10:32:27,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:27,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3439 states. [2020-12-22 10:32:27,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3439 to 2715. [2020-12-22 10:32:27,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2715 states. [2020-12-22 10:32:27,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 9581 transitions. [2020-12-22 10:32:27,275 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 9581 transitions. Word has length 26 [2020-12-22 10:32:27,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:27,275 INFO L481 AbstractCegarLoop]: Abstraction has 2715 states and 9581 transitions. [2020-12-22 10:32:27,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 10:32:27,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 9581 transitions. [2020-12-22 10:32:27,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:27,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:27,281 INFO L422 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] [2020-12-22 10:32:27,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 10:32:27,282 INFO L429 AbstractCegarLoop]: === Iteration 38 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:27,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:27,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1095200096, now seen corresponding path program 1 times [2020-12-22 10:32:27,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:27,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965463512] [2020-12-22 10:32:27,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:27,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:27,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965463512] [2020-12-22 10:32:27,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:27,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 10:32:27,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414623708] [2020-12-22 10:32:27,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 10:32:27,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:27,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 10:32:27,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:27,432 INFO L87 Difference]: Start difference. First operand 2715 states and 9581 transitions. Second operand 10 states. [2020-12-22 10:32:27,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:27,915 INFO L93 Difference]: Finished difference Result 3947 states and 13862 transitions. [2020-12-22 10:32:27,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:27,915 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-12-22 10:32:27,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:27,927 INFO L225 Difference]: With dead ends: 3947 [2020-12-22 10:32:27,928 INFO L226 Difference]: Without dead ends: 3849 [2020-12-22 10:32:27,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:27,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3849 states. [2020-12-22 10:32:27,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3849 to 2715. [2020-12-22 10:32:28,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2715 states. [2020-12-22 10:32:28,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2715 states to 2715 states and 9581 transitions. [2020-12-22 10:32:28,011 INFO L78 Accepts]: Start accepts. Automaton has 2715 states and 9581 transitions. Word has length 26 [2020-12-22 10:32:28,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:28,011 INFO L481 AbstractCegarLoop]: Abstraction has 2715 states and 9581 transitions. [2020-12-22 10:32:28,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 10:32:28,012 INFO L276 IsEmpty]: Start isEmpty. Operand 2715 states and 9581 transitions. [2020-12-22 10:32:28,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 10:32:28,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:28,017 INFO L422 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] [2020-12-22 10:32:28,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 10:32:28,018 INFO L429 AbstractCegarLoop]: === Iteration 39 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:28,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:28,018 INFO L82 PathProgramCache]: Analyzing trace with hash 43549556, now seen corresponding path program 2 times [2020-12-22 10:32:28,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:28,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770249625] [2020-12-22 10:32:28,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:28,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:28,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770249625] [2020-12-22 10:32:28,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:28,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 10:32:28,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098785823] [2020-12-22 10:32:28,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 10:32:28,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:28,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 10:32:28,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:28,175 INFO L87 Difference]: Start difference. First operand 2715 states and 9581 transitions. Second operand 10 states. [2020-12-22 10:32:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:28,610 INFO L93 Difference]: Finished difference Result 3151 states and 10988 transitions. [2020-12-22 10:32:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:28,611 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-12-22 10:32:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:28,618 INFO L225 Difference]: With dead ends: 3151 [2020-12-22 10:32:28,618 INFO L226 Difference]: Without dead ends: 3053 [2020-12-22 10:32:28,618 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:28,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3053 states. [2020-12-22 10:32:28,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3053 to 2389. [2020-12-22 10:32:28,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2389 states. [2020-12-22 10:32:28,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 8340 transitions. [2020-12-22 10:32:28,684 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 8340 transitions. Word has length 26 [2020-12-22 10:32:28,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:28,684 INFO L481 AbstractCegarLoop]: Abstraction has 2389 states and 8340 transitions. [2020-12-22 10:32:28,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 10:32:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 8340 transitions. [2020-12-22 10:32:28,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 10:32:28,689 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:28,689 INFO L422 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] [2020-12-22 10:32:28,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 10:32:28,690 INFO L429 AbstractCegarLoop]: === Iteration 40 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:28,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:28,690 INFO L82 PathProgramCache]: Analyzing trace with hash 907782437, now seen corresponding path program 1 times [2020-12-22 10:32:28,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:28,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045680689] [2020-12-22 10:32:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:28,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:28,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045680689] [2020-12-22 10:32:28,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:28,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 10:32:28,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387856205] [2020-12-22 10:32:28,904 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 10:32:28,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:28,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 10:32:28,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:28,905 INFO L87 Difference]: Start difference. First operand 2389 states and 8340 transitions. Second operand 11 states. [2020-12-22 10:32:29,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:29,395 INFO L93 Difference]: Finished difference Result 3007 states and 10647 transitions. [2020-12-22 10:32:29,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:29,395 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-12-22 10:32:29,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:29,405 INFO L225 Difference]: With dead ends: 3007 [2020-12-22 10:32:29,405 INFO L226 Difference]: Without dead ends: 2937 [2020-12-22 10:32:29,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-22 10:32:29,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2937 states. [2020-12-22 10:32:29,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2937 to 2490. [2020-12-22 10:32:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2490 states. [2020-12-22 10:32:29,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2490 states to 2490 states and 8800 transitions. [2020-12-22 10:32:29,481 INFO L78 Accepts]: Start accepts. Automaton has 2490 states and 8800 transitions. Word has length 27 [2020-12-22 10:32:29,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:29,482 INFO L481 AbstractCegarLoop]: Abstraction has 2490 states and 8800 transitions. [2020-12-22 10:32:29,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 10:32:29,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2490 states and 8800 transitions. [2020-12-22 10:32:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 10:32:29,488 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:29,488 INFO L422 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] [2020-12-22 10:32:29,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 10:32:29,489 INFO L429 AbstractCegarLoop]: === Iteration 41 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:29,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:29,489 INFO L82 PathProgramCache]: Analyzing trace with hash 2120484843, now seen corresponding path program 1 times [2020-12-22 10:32:29,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:29,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684666637] [2020-12-22 10:32:29,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:29,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:29,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684666637] [2020-12-22 10:32:29,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:29,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 10:32:29,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649551392] [2020-12-22 10:32:29,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 10:32:29,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:29,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 10:32:29,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:29,716 INFO L87 Difference]: Start difference. First operand 2490 states and 8800 transitions. Second operand 11 states. [2020-12-22 10:32:30,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:30,438 INFO L93 Difference]: Finished difference Result 3004 states and 10432 transitions. [2020-12-22 10:32:30,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:30,438 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 27 [2020-12-22 10:32:30,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:30,446 INFO L225 Difference]: With dead ends: 3004 [2020-12-22 10:32:30,446 INFO L226 Difference]: Without dead ends: 2889 [2020-12-22 10:32:30,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:30,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2889 states. [2020-12-22 10:32:30,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2889 to 2349. [2020-12-22 10:32:30,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2349 states. [2020-12-22 10:32:30,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 8184 transitions. [2020-12-22 10:32:30,491 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 8184 transitions. Word has length 27 [2020-12-22 10:32:30,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:30,491 INFO L481 AbstractCegarLoop]: Abstraction has 2349 states and 8184 transitions. [2020-12-22 10:32:30,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 10:32:30,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 8184 transitions. [2020-12-22 10:32:30,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 10:32:30,495 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:30,495 INFO L422 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] [2020-12-22 10:32:30,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 10:32:30,496 INFO L429 AbstractCegarLoop]: === Iteration 42 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:30,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:30,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1524893631, now seen corresponding path program 2 times [2020-12-22 10:32:30,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:30,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077206931] [2020-12-22 10:32:30,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:30,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077206931] [2020-12-22 10:32:30,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:30,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 10:32:30,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197106819] [2020-12-22 10:32:30,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 10:32:30,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:30,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 10:32:30,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:30,794 INFO L87 Difference]: Start difference. First operand 2349 states and 8184 transitions. Second operand 13 states. [2020-12-22 10:32:31,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:31,590 INFO L93 Difference]: Finished difference Result 3028 states and 10567 transitions. [2020-12-22 10:32:31,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 10:32:31,590 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-12-22 10:32:31,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:31,597 INFO L225 Difference]: With dead ends: 3028 [2020-12-22 10:32:31,598 INFO L226 Difference]: Without dead ends: 2886 [2020-12-22 10:32:31,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2020-12-22 10:32:31,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2886 states. [2020-12-22 10:32:31,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2886 to 2087. [2020-12-22 10:32:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2087 states. [2020-12-22 10:32:31,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2087 states to 2087 states and 7249 transitions. [2020-12-22 10:32:31,638 INFO L78 Accepts]: Start accepts. Automaton has 2087 states and 7249 transitions. Word has length 27 [2020-12-22 10:32:31,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:31,639 INFO L481 AbstractCegarLoop]: Abstraction has 2087 states and 7249 transitions. [2020-12-22 10:32:31,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 10:32:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2087 states and 7249 transitions. [2020-12-22 10:32:31,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 10:32:31,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:31,644 INFO L422 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] [2020-12-22 10:32:31,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-22 10:32:31,644 INFO L429 AbstractCegarLoop]: === Iteration 43 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:31,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:31,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1646398155, now seen corresponding path program 2 times [2020-12-22 10:32:31,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:31,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707564371] [2020-12-22 10:32:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:31,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:31,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707564371] [2020-12-22 10:32:31,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:31,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 10:32:31,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905133193] [2020-12-22 10:32:31,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 10:32:31,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:31,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 10:32:31,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:31,985 INFO L87 Difference]: Start difference. First operand 2087 states and 7249 transitions. Second operand 13 states. [2020-12-22 10:32:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:32,718 INFO L93 Difference]: Finished difference Result 2170 states and 7294 transitions. [2020-12-22 10:32:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:32,719 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-12-22 10:32:32,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:32,726 INFO L225 Difference]: With dead ends: 2170 [2020-12-22 10:32:32,727 INFO L226 Difference]: Without dead ends: 1933 [2020-12-22 10:32:32,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2020-12-22 10:32:32,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1933 states. [2020-12-22 10:32:32,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1933 to 1392. [2020-12-22 10:32:32,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1392 states. [2020-12-22 10:32:32,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 4530 transitions. [2020-12-22 10:32:32,771 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 4530 transitions. Word has length 27 [2020-12-22 10:32:32,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:32,771 INFO L481 AbstractCegarLoop]: Abstraction has 1392 states and 4530 transitions. [2020-12-22 10:32:32,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 10:32:32,771 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 4530 transitions. [2020-12-22 10:32:32,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:32,775 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:32,775 INFO L422 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] [2020-12-22 10:32:32,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-22 10:32:32,775 INFO L429 AbstractCegarLoop]: === Iteration 44 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:32,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:32,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1547272975, now seen corresponding path program 1 times [2020-12-22 10:32:32,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:32,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768092321] [2020-12-22 10:32:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:32,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:32,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768092321] [2020-12-22 10:32:32,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:32,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 10:32:32,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794583093] [2020-12-22 10:32:32,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 10:32:32,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:32,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 10:32:32,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 10:32:32,810 INFO L87 Difference]: Start difference. First operand 1392 states and 4530 transitions. Second operand 5 states. [2020-12-22 10:32:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:32,894 INFO L93 Difference]: Finished difference Result 1682 states and 5310 transitions. [2020-12-22 10:32:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:32,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-12-22 10:32:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:32,900 INFO L225 Difference]: With dead ends: 1682 [2020-12-22 10:32:32,900 INFO L226 Difference]: Without dead ends: 1391 [2020-12-22 10:32:32,900 INFO L677 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 [2020-12-22 10:32:32,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1391 states. [2020-12-22 10:32:32,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1391 to 1391. [2020-12-22 10:32:32,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1391 states. [2020-12-22 10:32:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 4528 transitions. [2020-12-22 10:32:32,935 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 4528 transitions. Word has length 28 [2020-12-22 10:32:32,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:32,935 INFO L481 AbstractCegarLoop]: Abstraction has 1391 states and 4528 transitions. [2020-12-22 10:32:32,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 10:32:32,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 4528 transitions. [2020-12-22 10:32:32,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:32,939 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:32,939 INFO L422 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] [2020-12-22 10:32:32,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-22 10:32:32,940 INFO L429 AbstractCegarLoop]: === Iteration 45 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:32,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1637295713, now seen corresponding path program 2 times [2020-12-22 10:32:32,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:32,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383559589] [2020-12-22 10:32:32,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:32,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:32,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:32,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383559589] [2020-12-22 10:32:32,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:32,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 10:32:32,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757578036] [2020-12-22 10:32:32,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 10:32:32,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:32,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 10:32:32,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 10:32:32,987 INFO L87 Difference]: Start difference. First operand 1391 states and 4528 transitions. Second operand 6 states. [2020-12-22 10:32:33,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:33,131 INFO L93 Difference]: Finished difference Result 1674 states and 5299 transitions. [2020-12-22 10:32:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:33,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-12-22 10:32:33,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:33,136 INFO L225 Difference]: With dead ends: 1674 [2020-12-22 10:32:33,136 INFO L226 Difference]: Without dead ends: 1384 [2020-12-22 10:32:33,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:33,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2020-12-22 10:32:33,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2020-12-22 10:32:33,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-12-22 10:32:33,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 4512 transitions. [2020-12-22 10:32:33,176 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 4512 transitions. Word has length 28 [2020-12-22 10:32:33,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:33,176 INFO L481 AbstractCegarLoop]: Abstraction has 1384 states and 4512 transitions. [2020-12-22 10:32:33,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 10:32:33,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 4512 transitions. [2020-12-22 10:32:33,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:33,180 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:33,180 INFO L422 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] [2020-12-22 10:32:33,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-22 10:32:33,180 INFO L429 AbstractCegarLoop]: === Iteration 46 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:33,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:33,181 INFO L82 PathProgramCache]: Analyzing trace with hash 459929903, now seen corresponding path program 3 times [2020-12-22 10:32:33,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:33,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470158635] [2020-12-22 10:32:33,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:33,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470158635] [2020-12-22 10:32:33,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:33,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 10:32:33,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766252125] [2020-12-22 10:32:33,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 10:32:33,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:33,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 10:32:33,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-12-22 10:32:33,297 INFO L87 Difference]: Start difference. First operand 1384 states and 4512 transitions. Second operand 8 states. [2020-12-22 10:32:33,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:33,558 INFO L93 Difference]: Finished difference Result 1663 states and 5277 transitions. [2020-12-22 10:32:33,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 10:32:33,559 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2020-12-22 10:32:33,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:33,563 INFO L225 Difference]: With dead ends: 1663 [2020-12-22 10:32:33,563 INFO L226 Difference]: Without dead ends: 1380 [2020-12-22 10:32:33,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-12-22 10:32:33,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2020-12-22 10:32:33,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1380 states. [2020-12-22 10:32:33,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 4503 transitions. [2020-12-22 10:32:33,586 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 4503 transitions. Word has length 28 [2020-12-22 10:32:33,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:33,586 INFO L481 AbstractCegarLoop]: Abstraction has 1380 states and 4503 transitions. [2020-12-22 10:32:33,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 10:32:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 4503 transitions. [2020-12-22 10:32:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:33,588 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:33,588 INFO L422 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] [2020-12-22 10:32:33,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-12-22 10:32:33,589 INFO L429 AbstractCegarLoop]: === Iteration 47 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:33,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:33,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1629184431, now seen corresponding path program 4 times [2020-12-22 10:32:33,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:33,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128542138] [2020-12-22 10:32:33,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:33,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:33,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128542138] [2020-12-22 10:32:33,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:33,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 10:32:33,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819466449] [2020-12-22 10:32:33,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 10:32:33,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:33,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 10:32:33,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-12-22 10:32:33,717 INFO L87 Difference]: Start difference. First operand 1380 states and 4503 transitions. Second operand 9 states. [2020-12-22 10:32:34,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:34,016 INFO L93 Difference]: Finished difference Result 1650 states and 5250 transitions. [2020-12-22 10:32:34,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:34,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-12-22 10:32:34,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:34,021 INFO L225 Difference]: With dead ends: 1650 [2020-12-22 10:32:34,021 INFO L226 Difference]: Without dead ends: 1371 [2020-12-22 10:32:34,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:34,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2020-12-22 10:32:34,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1371. [2020-12-22 10:32:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1371 states. [2020-12-22 10:32:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1371 states to 1371 states and 4479 transitions. [2020-12-22 10:32:34,045 INFO L78 Accepts]: Start accepts. Automaton has 1371 states and 4479 transitions. Word has length 28 [2020-12-22 10:32:34,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:34,045 INFO L481 AbstractCegarLoop]: Abstraction has 1371 states and 4479 transitions. [2020-12-22 10:32:34,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 10:32:34,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1371 states and 4479 transitions. [2020-12-22 10:32:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:34,047 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:34,048 INFO L422 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] [2020-12-22 10:32:34,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-22 10:32:34,048 INFO L429 AbstractCegarLoop]: === Iteration 48 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:34,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:34,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1509106773, now seen corresponding path program 5 times [2020-12-22 10:32:34,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:34,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815283397] [2020-12-22 10:32:34,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:34,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:34,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815283397] [2020-12-22 10:32:34,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:34,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 10:32:34,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242685377] [2020-12-22 10:32:34,225 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 10:32:34,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:34,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 10:32:34,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-12-22 10:32:34,226 INFO L87 Difference]: Start difference. First operand 1371 states and 4479 transitions. Second operand 10 states. [2020-12-22 10:32:34,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:34,574 INFO L93 Difference]: Finished difference Result 1627 states and 5185 transitions. [2020-12-22 10:32:34,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:34,574 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-12-22 10:32:34,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:34,578 INFO L225 Difference]: With dead ends: 1627 [2020-12-22 10:32:34,578 INFO L226 Difference]: Without dead ends: 1357 [2020-12-22 10:32:34,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:34,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2020-12-22 10:32:34,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 1357. [2020-12-22 10:32:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1357 states. [2020-12-22 10:32:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 4426 transitions. [2020-12-22 10:32:34,604 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 4426 transitions. Word has length 28 [2020-12-22 10:32:34,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:34,605 INFO L481 AbstractCegarLoop]: Abstraction has 1357 states and 4426 transitions. [2020-12-22 10:32:34,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 10:32:34,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 4426 transitions. [2020-12-22 10:32:34,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:34,608 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:34,608 INFO L422 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] [2020-12-22 10:32:34,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-12-22 10:32:34,608 INFO L429 AbstractCegarLoop]: === Iteration 49 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:34,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:34,609 INFO L82 PathProgramCache]: Analyzing trace with hash 446339391, now seen corresponding path program 6 times [2020-12-22 10:32:34,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:34,609 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101574233] [2020-12-22 10:32:34,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:34,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101574233] [2020-12-22 10:32:34,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:34,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 10:32:34,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274758898] [2020-12-22 10:32:34,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 10:32:34,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:34,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 10:32:34,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:34,746 INFO L87 Difference]: Start difference. First operand 1357 states and 4426 transitions. Second operand 11 states. [2020-12-22 10:32:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:35,098 INFO L93 Difference]: Finished difference Result 1917 states and 6244 transitions. [2020-12-22 10:32:35,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 10:32:35,099 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-12-22 10:32:35,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:35,102 INFO L225 Difference]: With dead ends: 1917 [2020-12-22 10:32:35,103 INFO L226 Difference]: Without dead ends: 1669 [2020-12-22 10:32:35,103 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-22 10:32:35,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2020-12-22 10:32:35,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1349. [2020-12-22 10:32:35,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1349 states. [2020-12-22 10:32:35,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 4390 transitions. [2020-12-22 10:32:35,125 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 4390 transitions. Word has length 28 [2020-12-22 10:32:35,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:35,126 INFO L481 AbstractCegarLoop]: Abstraction has 1349 states and 4390 transitions. [2020-12-22 10:32:35,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 10:32:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 4390 transitions. [2020-12-22 10:32:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:35,128 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:35,129 INFO L422 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] [2020-12-22 10:32:35,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-12-22 10:32:35,129 INFO L429 AbstractCegarLoop]: === Iteration 50 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:35,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:35,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2112935205, now seen corresponding path program 7 times [2020-12-22 10:32:35,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:35,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691866851] [2020-12-22 10:32:35,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:35,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691866851] [2020-12-22 10:32:35,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:35,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 10:32:35,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145029093] [2020-12-22 10:32:35,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 10:32:35,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:35,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 10:32:35,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:35,269 INFO L87 Difference]: Start difference. First operand 1349 states and 4390 transitions. Second operand 11 states. [2020-12-22 10:32:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:35,519 INFO L93 Difference]: Finished difference Result 1549 states and 4908 transitions. [2020-12-22 10:32:35,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 10:32:35,519 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-12-22 10:32:35,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:35,523 INFO L225 Difference]: With dead ends: 1549 [2020-12-22 10:32:35,523 INFO L226 Difference]: Without dead ends: 1317 [2020-12-22 10:32:35,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2020-12-22 10:32:35,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2020-12-22 10:32:35,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1317. [2020-12-22 10:32:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1317 states. [2020-12-22 10:32:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 4230 transitions. [2020-12-22 10:32:35,554 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 4230 transitions. Word has length 28 [2020-12-22 10:32:35,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:35,554 INFO L481 AbstractCegarLoop]: Abstraction has 1317 states and 4230 transitions. [2020-12-22 10:32:35,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 10:32:35,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 4230 transitions. [2020-12-22 10:32:35,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 10:32:35,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:35,557 INFO L422 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] [2020-12-22 10:32:35,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-12-22 10:32:35,557 INFO L429 AbstractCegarLoop]: === Iteration 51 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:35,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:35,558 INFO L82 PathProgramCache]: Analyzing trace with hash -94355749, now seen corresponding path program 8 times [2020-12-22 10:32:35,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:35,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746375179] [2020-12-22 10:32:35,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:35,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:35,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746375179] [2020-12-22 10:32:35,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:35,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 10:32:35,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544437575] [2020-12-22 10:32:35,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 10:32:35,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:35,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 10:32:35,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:35,827 INFO L87 Difference]: Start difference. First operand 1317 states and 4230 transitions. Second operand 13 states. [2020-12-22 10:32:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:36,490 INFO L93 Difference]: Finished difference Result 1485 states and 4665 transitions. [2020-12-22 10:32:36,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:36,490 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2020-12-22 10:32:36,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:36,493 INFO L225 Difference]: With dead ends: 1485 [2020-12-22 10:32:36,493 INFO L226 Difference]: Without dead ends: 1053 [2020-12-22 10:32:36,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=95, Invalid=247, Unknown=0, NotChecked=0, Total=342 [2020-12-22 10:32:36,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2020-12-22 10:32:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 905. [2020-12-22 10:32:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 905 states. [2020-12-22 10:32:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 2760 transitions. [2020-12-22 10:32:36,510 INFO L78 Accepts]: Start accepts. Automaton has 905 states and 2760 transitions. Word has length 28 [2020-12-22 10:32:36,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:36,511 INFO L481 AbstractCegarLoop]: Abstraction has 905 states and 2760 transitions. [2020-12-22 10:32:36,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 10:32:36,511 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states and 2760 transitions. [2020-12-22 10:32:36,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 10:32:36,512 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:36,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:36,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-12-22 10:32:36,513 INFO L429 AbstractCegarLoop]: === Iteration 52 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:36,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:36,513 INFO L82 PathProgramCache]: Analyzing trace with hash -67296542, now seen corresponding path program 1 times [2020-12-22 10:32:36,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:36,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582253749] [2020-12-22 10:32:36,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:36,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582253749] [2020-12-22 10:32:36,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:36,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 10:32:36,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268286962] [2020-12-22 10:32:36,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 10:32:36,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:36,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 10:32:36,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:36,772 INFO L87 Difference]: Start difference. First operand 905 states and 2760 transitions. Second operand 13 states. [2020-12-22 10:32:37,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:37,439 INFO L93 Difference]: Finished difference Result 1701 states and 5319 transitions. [2020-12-22 10:32:37,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 10:32:37,439 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-12-22 10:32:37,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:37,443 INFO L225 Difference]: With dead ends: 1701 [2020-12-22 10:32:37,444 INFO L226 Difference]: Without dead ends: 1433 [2020-12-22 10:32:37,446 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-12-22 10:32:37,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1433 states. [2020-12-22 10:32:37,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1433 to 949. [2020-12-22 10:32:37,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2020-12-22 10:32:37,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 2878 transitions. [2020-12-22 10:32:37,473 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 2878 transitions. Word has length 30 [2020-12-22 10:32:37,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:37,473 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 2878 transitions. [2020-12-22 10:32:37,473 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 10:32:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 2878 transitions. [2020-12-22 10:32:37,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 10:32:37,475 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:37,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:37,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-12-22 10:32:37,476 INFO L429 AbstractCegarLoop]: === Iteration 53 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:37,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:37,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1668396158, now seen corresponding path program 2 times [2020-12-22 10:32:37,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:37,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128461094] [2020-12-22 10:32:37,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:37,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:37,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128461094] [2020-12-22 10:32:37,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:37,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 10:32:37,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009786492] [2020-12-22 10:32:37,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-22 10:32:37,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:37,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-22 10:32:37,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-12-22 10:32:37,734 INFO L87 Difference]: Start difference. First operand 949 states and 2878 transitions. Second operand 13 states. [2020-12-22 10:32:38,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:38,317 INFO L93 Difference]: Finished difference Result 1319 states and 4018 transitions. [2020-12-22 10:32:38,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 10:32:38,317 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2020-12-22 10:32:38,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:38,320 INFO L225 Difference]: With dead ends: 1319 [2020-12-22 10:32:38,320 INFO L226 Difference]: Without dead ends: 1059 [2020-12-22 10:32:38,321 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-12-22 10:32:38,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2020-12-22 10:32:38,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 933. [2020-12-22 10:32:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 10:32:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 2834 transitions. [2020-12-22 10:32:38,335 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 2834 transitions. Word has length 30 [2020-12-22 10:32:38,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:38,335 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 2834 transitions. [2020-12-22 10:32:38,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-22 10:32:38,335 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 2834 transitions. [2020-12-22 10:32:38,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 10:32:38,336 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:38,336 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:38,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-12-22 10:32:38,337 INFO L429 AbstractCegarLoop]: === Iteration 54 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:38,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:38,337 INFO L82 PathProgramCache]: Analyzing trace with hash -41395204, now seen corresponding path program 3 times [2020-12-22 10:32:38,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:38,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976797153] [2020-12-22 10:32:38,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:38,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976797153] [2020-12-22 10:32:38,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:38,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 10:32:38,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931427769] [2020-12-22 10:32:38,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 10:32:38,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:38,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 10:32:38,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:38,541 INFO L87 Difference]: Start difference. First operand 933 states and 2834 transitions. Second operand 12 states. [2020-12-22 10:32:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:38,857 INFO L93 Difference]: Finished difference Result 1221 states and 3704 transitions. [2020-12-22 10:32:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:38,857 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-12-22 10:32:38,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:38,860 INFO L225 Difference]: With dead ends: 1221 [2020-12-22 10:32:38,860 INFO L226 Difference]: Without dead ends: 1049 [2020-12-22 10:32:38,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:38,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2020-12-22 10:32:38,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 921. [2020-12-22 10:32:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 10:32:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 2800 transitions. [2020-12-22 10:32:38,875 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 2800 transitions. Word has length 30 [2020-12-22 10:32:38,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:38,875 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 2800 transitions. [2020-12-22 10:32:38,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 10:32:38,875 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 2800 transitions. [2020-12-22 10:32:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 10:32:38,876 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:38,877 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:38,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-12-22 10:32:38,877 INFO L429 AbstractCegarLoop]: === Iteration 55 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:38,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:38,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1694297496, now seen corresponding path program 4 times [2020-12-22 10:32:38,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:38,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134386753] [2020-12-22 10:32:38,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:38,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:39,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134386753] [2020-12-22 10:32:39,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:39,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 10:32:39,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057746814] [2020-12-22 10:32:39,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 10:32:39,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:39,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 10:32:39,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:39,091 INFO L87 Difference]: Start difference. First operand 921 states and 2800 transitions. Second operand 12 states. [2020-12-22 10:32:39,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:39,413 INFO L93 Difference]: Finished difference Result 760 states and 2253 transitions. [2020-12-22 10:32:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 10:32:39,414 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-12-22 10:32:39,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:39,415 INFO L225 Difference]: With dead ends: 760 [2020-12-22 10:32:39,416 INFO L226 Difference]: Without dead ends: 492 [2020-12-22 10:32:39,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:39,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-12-22 10:32:39,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 368. [2020-12-22 10:32:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2020-12-22 10:32:39,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 1047 transitions. [2020-12-22 10:32:39,424 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 1047 transitions. Word has length 30 [2020-12-22 10:32:39,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:39,424 INFO L481 AbstractCegarLoop]: Abstraction has 368 states and 1047 transitions. [2020-12-22 10:32:39,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 10:32:39,425 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 1047 transitions. [2020-12-22 10:32:39,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 10:32:39,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:39,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:39,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-12-22 10:32:39,426 INFO L429 AbstractCegarLoop]: === Iteration 56 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:39,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:39,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1256010255, now seen corresponding path program 1 times [2020-12-22 10:32:39,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:39,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252878544] [2020-12-22 10:32:39,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:39,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:39,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252878544] [2020-12-22 10:32:39,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:39,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 10:32:39,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85101970] [2020-12-22 10:32:39,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 10:32:39,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:39,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 10:32:39,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:39,616 INFO L87 Difference]: Start difference. First operand 368 states and 1047 transitions. Second operand 12 states. [2020-12-22 10:32:40,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:40,139 INFO L93 Difference]: Finished difference Result 478 states and 1317 transitions. [2020-12-22 10:32:40,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 10:32:40,139 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-12-22 10:32:40,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:40,140 INFO L225 Difference]: With dead ends: 478 [2020-12-22 10:32:40,140 INFO L226 Difference]: Without dead ends: 370 [2020-12-22 10:32:40,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=280, Unknown=0, NotChecked=0, Total=380 [2020-12-22 10:32:40,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-12-22 10:32:40,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 366. [2020-12-22 10:32:40,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2020-12-22 10:32:40,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 1041 transitions. [2020-12-22 10:32:40,148 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 1041 transitions. Word has length 30 [2020-12-22 10:32:40,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:40,148 INFO L481 AbstractCegarLoop]: Abstraction has 366 states and 1041 transitions. [2020-12-22 10:32:40,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 10:32:40,148 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 1041 transitions. [2020-12-22 10:32:40,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 10:32:40,149 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:40,149 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:40,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-12-22 10:32:40,149 INFO L429 AbstractCegarLoop]: === Iteration 57 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:40,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:40,150 INFO L82 PathProgramCache]: Analyzing trace with hash -766721315, now seen corresponding path program 2 times [2020-12-22 10:32:40,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:40,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110243642] [2020-12-22 10:32:40,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:40,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:40,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110243642] [2020-12-22 10:32:40,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:40,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 10:32:40,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742255591] [2020-12-22 10:32:40,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 10:32:40,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:40,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 10:32:40,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-12-22 10:32:40,488 INFO L87 Difference]: Start difference. First operand 366 states and 1041 transitions. Second operand 12 states. [2020-12-22 10:32:40,918 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-22 10:32:41,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:41,250 INFO L93 Difference]: Finished difference Result 455 states and 1267 transitions. [2020-12-22 10:32:41,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 10:32:41,250 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 30 [2020-12-22 10:32:41,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:41,251 INFO L225 Difference]: With dead ends: 455 [2020-12-22 10:32:41,251 INFO L226 Difference]: Without dead ends: 312 [2020-12-22 10:32:41,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-12-22 10:32:41,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-12-22 10:32:41,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2020-12-22 10:32:41,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-12-22 10:32:41,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 866 transitions. [2020-12-22 10:32:41,256 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 866 transitions. Word has length 30 [2020-12-22 10:32:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:41,257 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 866 transitions. [2020-12-22 10:32:41,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 10:32:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 866 transitions. [2020-12-22 10:32:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 10:32:41,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 10:32:41,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 10:32:41,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-12-22 10:32:41,258 INFO L429 AbstractCegarLoop]: === Iteration 58 === [thread0Err1INUSE_VIOLATION, thread0Thread1of1ForFork4Err0INUSE_VIOLATION, thread0Err6INUSE_VIOLATION, thread0Err5INUSE_VIOLATION, thread0Thread1of1ForFork4Err10INUSE_VIOLATION, thread0Thread1of1ForFork4Err3INUSE_VIOLATION, thread0Thread1of1ForFork4Err9INUSE_VIOLATION, thread0Err8INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread0Thread1of1ForFork4Err7INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-12-22 10:32:41,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 10:32:41,259 INFO L82 PathProgramCache]: Analyzing trace with hash 660110225, now seen corresponding path program 3 times [2020-12-22 10:32:41,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 10:32:41,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874580941] [2020-12-22 10:32:41,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 10:32:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 10:32:41,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 10:32:41,431 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874580941] [2020-12-22 10:32:41,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 10:32:41,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 10:32:41,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098920298] [2020-12-22 10:32:41,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 10:32:41,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 10:32:41,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 10:32:41,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-12-22 10:32:41,433 INFO L87 Difference]: Start difference. First operand 312 states and 866 transitions. Second operand 11 states. [2020-12-22 10:32:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 10:32:41,715 INFO L93 Difference]: Finished difference Result 123 states and 279 transitions. [2020-12-22 10:32:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 10:32:41,716 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 30 [2020-12-22 10:32:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 10:32:41,716 INFO L225 Difference]: With dead ends: 123 [2020-12-22 10:32:41,716 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 10:32:41,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-12-22 10:32:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 10:32:41,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 10:32:41,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 10:32:41,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 10:32:41,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-12-22 10:32:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 10:32:41,718 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 10:32:41,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 10:32:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 10:32:41,718 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 10:32:41,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-12-22 10:32:41,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 10:32:41 BasicIcfg [2020-12-22 10:32:41,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 10:32:41,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 10:32:41,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 10:32:41,723 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 10:32:41,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 10:31:55" (3/4) ... [2020-12-22 10:32:41,728 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 10:32:41,737 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2020-12-22 10:32:41,737 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2020-12-22 10:32:41,737 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2020-12-22 10:32:41,737 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2020-12-22 10:32:41,742 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 10:32:41,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 10:32:41,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 10:32:41,743 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 10:32:41,782 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/pthread/singleton_with-uninit-problems.i-witness.graphml [2020-12-22 10:32:41,783 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 10:32:41,784 INFO L168 Benchmark]: Toolchain (without parser) took 48435.17 ms. Allocated memory was 169.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 142.7 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2020-12-22 10:32:41,784 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 169.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 10:32:41,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 941.06 ms. Allocated memory is still 169.9 MB. Free memory was 142.4 MB in the beginning and 126.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 52.9 MB. Max. memory is 8.0 GB. [2020-12-22 10:32:41,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.52 ms. Allocated memory is still 169.9 MB. Free memory was 126.8 MB in the beginning and 124.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 10:32:41,785 INFO L168 Benchmark]: Boogie Preprocessor took 74.38 ms. Allocated memory is still 169.9 MB. Free memory was 124.7 MB in the beginning and 123.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 10:32:41,786 INFO L168 Benchmark]: RCFGBuilder took 657.41 ms. Allocated memory is still 169.9 MB. Free memory was 123.2 MB in the beginning and 95.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-12-22 10:32:41,786 INFO L168 Benchmark]: TraceAbstraction took 46624.87 ms. Allocated memory was 169.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 94.8 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. [2020-12-22 10:32:41,787 INFO L168 Benchmark]: Witness Printer took 59.54 ms. Allocated memory is still 2.9 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 10:32:41,789 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 169.9 MB. Free memory is still 143.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 941.06 ms. Allocated memory is still 169.9 MB. Free memory was 142.4 MB in the beginning and 126.8 MB in the end (delta: 15.6 MB). Peak memory consumption was 52.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 64.52 ms. Allocated memory is still 169.9 MB. Free memory was 126.8 MB in the beginning and 124.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 74.38 ms. Allocated memory is still 169.9 MB. Free memory was 124.7 MB in the beginning and 123.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 657.41 ms. Allocated memory is still 169.9 MB. Free memory was 123.2 MB in the beginning and 95.4 MB in the end (delta: 27.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 46624.87 ms. Allocated memory was 169.9 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 94.8 MB in the beginning and 1.8 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.0 GB. Max. memory is 8.0 GB. * Witness Printer took 59.54 ms. Allocated memory is still 2.9 GB. Free memory was 1.8 GB in the beginning and 1.8 GB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4085 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 46 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 1350 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.8s, 173 PlacesBefore, 95 PlacesAfterwards, 255 TransitionsBefore, 176 TransitionsAfterwards, 4982 CoEnabledTransitionPairs, 5 FixpointIterations, 27 TrivialSequentialCompositions, 51 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 87 TotalNumberOfCompositions, 55868 MoverChecksTotal - PositiveResult [Line: 1123]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 46.0s, OverallIterations: 58, TraceHistogramMax: 1, AutomataDifference: 22.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.0s, HoareTripleCheckerStatistics: 5215 SDtfs, 9488 SDslu, 14563 SDs, 0 SdLazy, 9094 SolverSat, 1447 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 697 GetRequests, 65 SyntacticMatches, 8 SemanticMatches, 624 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 13.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5288occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.1s AutomataMinimizationTime, 58 MinimizatonAttempts, 37400 StatesRemovedByMinimization, 49 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 1385 NumberOfCodeBlocks, 1385 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 1327 ConstructedInterpolants, 0 QuantifiedInterpolants, 479069 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 58 InterpolantComputations, 58 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...