/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 22:05:06,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 22:05:06,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 22:05:06,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-21 22:05:06,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-21 22:05:06,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-21 22:05:06,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-21 22:05:06,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-21 22:05:06,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-21 22:05:06,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-21 22:05:06,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-21 22:05:06,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-21 22:05:06,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 22:05:06,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 22:05:06,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 22:05:06,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 22:05:06,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 22:05:06,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 22:05:06,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 22:05:06,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 22:05:06,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 22:05:06,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 22:05:06,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 22:05:06,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 22:05:06,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 22:05:06,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 22:05:06,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 22:05:06,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 22:05:06,768 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-05-21 22:05:06,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 22:05:06,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 22:05:06,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 22:05:06,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 22:05:06,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 22:05:06,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 22:05:06,809 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 22:05:06,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 22:05:06,810 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 22:05:06,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 22:05:06,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 22:05:06,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 22:05:06,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 22:05:06,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 22:05:06,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 22:05:06,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 22:05:06,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 22:05:06,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 22:05:06,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 22:05:06,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 22:05:06,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 22:05:06,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 22:05:06,813 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 22:05:06,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 22:05:06,813 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 22:05:06,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 22:05:07,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 22:05:07,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 22:05:07,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 22:05:07,097 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 22:05:07,097 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 22:05:07,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2021-05-21 22:05:07,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a794d010d/8a4418db172644ebbc62198f6b2b9912/FLAGed5fea2ff [2021-05-21 22:05:07,668 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 22:05:07,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2021-05-21 22:05:07,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a794d010d/8a4418db172644ebbc62198f6b2b9912/FLAGed5fea2ff [2021-05-21 22:05:07,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a794d010d/8a4418db172644ebbc62198f6b2b9912 [2021-05-21 22:05:07,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 22:05:07,968 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 22:05:07,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 22:05:07,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 22:05:07,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 22:05:07,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:05:07" (1/1) ... [2021-05-21 22:05:07,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e733cd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:07, skipping insertion in model container [2021-05-21 22:05:07,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:05:07" (1/1) ... [2021-05-21 22:05:07,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 22:05:08,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 22:05:08,211 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:05:08,348 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-05-21 22:05:08,359 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-05-21 22:05:08,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:05:08,375 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 22:05:08,395 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:05:08,418 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[32156,32169] [2021-05-21 22:05:08,421 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i[34083,34096] [2021-05-21 22:05:08,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:05:08,490 INFO L208 MainTranslator]: Completed translation [2021-05-21 22:05:08,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08 WrapperNode [2021-05-21 22:05:08,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 22:05:08,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 22:05:08,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 22:05:08,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 22:05:08,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 22:05:08,544 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 22:05:08,544 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 22:05:08,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 22:05:08,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (1/1) ... [2021-05-21 22:05:08,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 22:05:08,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 22:05:08,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 22:05:08,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 22:05:08,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (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 [2021-05-21 22:05:08,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 22:05:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-05-21 22:05:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-05-21 22:05:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-05-21 22:05:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-05-21 22:05:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 22:05:08,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 22:05:08,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 22:05:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 22:05:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 22:05:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 22:05:08,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 22:05:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 22:05:08,671 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-21 22:05:09,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 22:05:09,113 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-05-21 22:05:09,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:05:09 BoogieIcfgContainer [2021-05-21 22:05:09,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 22:05:09,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 22:05:09,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 22:05:09,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 22:05:09,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 10:05:07" (1/3) ... [2021-05-21 22:05:09,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc1dcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:05:09, skipping insertion in model container [2021-05-21 22:05:09,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:05:08" (2/3) ... [2021-05-21 22:05:09,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc1dcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:05:09, skipping insertion in model container [2021-05-21 22:05:09,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:05:09" (3/3) ... [2021-05-21 22:05:09,122 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.i [2021-05-21 22:05:09,127 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 22:05:09,127 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 22:05:09,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-05-21 22:05:09,128 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 22:05:09,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,164 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,164 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,165 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,165 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,165 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,168 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,170 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,171 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,171 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,172 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,172 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,172 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,173 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,174 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,175 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,176 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,176 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,176 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,177 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,177 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,177 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,177 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,177 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,177 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,178 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,179 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,180 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,181 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,181 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,182 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,183 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,184 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,184 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,185 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,186 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,187 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,188 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,189 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,190 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,191 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,193 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,197 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,197 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,198 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,199 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~y2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,201 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,202 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~x2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,202 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~b12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,202 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,207 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~b21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~y1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~x1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:05:09,235 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-21 22:05:09,254 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 22:05:09,283 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:05:09,284 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:05:09,284 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:05:09,284 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:05:09,284 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:05:09,284 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:05:09,284 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:05:09,285 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 22:05:09,298 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 131 transitions, 284 flow [2021-05-21 22:05:09,472 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4509 states, 4505 states have (on average 3.331853496115427) internal successors, (15010), 4508 states have internal predecessors, (15010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:09,487 INFO L276 IsEmpty]: Start isEmpty. Operand has 4509 states, 4505 states have (on average 3.331853496115427) internal successors, (15010), 4508 states have internal predecessors, (15010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-05-21 22:05:09,500 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:09,500 INFO L521 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] [2021-05-21 22:05:09,501 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:09,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1915636410, now seen corresponding path program 1 times [2021-05-21 22:05:09,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:09,512 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237906940] [2021-05-21 22:05:09,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:09,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:09,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:09,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:09,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237906940] [2021-05-21 22:05:09,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237906940] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:09,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:09,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 22:05:09,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554576675] [2021-05-21 22:05:09,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 22:05:09,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:09,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 22:05:09,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 22:05:09,735 INFO L87 Difference]: Start difference. First operand has 4509 states, 4505 states have (on average 3.331853496115427) internal successors, (15010), 4508 states have internal predecessors, (15010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:09,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:09,813 INFO L93 Difference]: Finished difference Result 4509 states and 13402 transitions. [2021-05-21 22:05:09,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 22:05:09,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-05-21 22:05:09,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:09,850 INFO L225 Difference]: With dead ends: 4509 [2021-05-21 22:05:09,850 INFO L226 Difference]: Without dead ends: 4370 [2021-05-21 22:05:09,851 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 22:05:09,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2021-05-21 22:05:10,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 4370. [2021-05-21 22:05:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4370 states, 4367 states have (on average 2.9899244332493704) internal successors, (13057), 4369 states have internal predecessors, (13057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4370 states to 4370 states and 13057 transitions. [2021-05-21 22:05:10,094 INFO L78 Accepts]: Start accepts. Automaton has 4370 states and 13057 transitions. Word has length 25 [2021-05-21 22:05:10,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:10,095 INFO L482 AbstractCegarLoop]: Abstraction has 4370 states and 13057 transitions. [2021-05-21 22:05:10,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 4370 states and 13057 transitions. [2021-05-21 22:05:10,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-05-21 22:05:10,102 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:10,102 INFO L521 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, 1, 1, 1] [2021-05-21 22:05:10,102 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 22:05:10,102 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash -977585031, now seen corresponding path program 1 times [2021-05-21 22:05:10,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:10,105 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67785908] [2021-05-21 22:05:10,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:10,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:10,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67785908] [2021-05-21 22:05:10,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67785908] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:10,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:10,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:05:10,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282592644] [2021-05-21 22:05:10,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:05:10,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:10,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:05:10,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:10,255 INFO L87 Difference]: Start difference. First operand 4370 states and 13057 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:10,319 INFO L93 Difference]: Finished difference Result 4270 states and 12668 transitions. [2021-05-21 22:05:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:05:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-05-21 22:05:10,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:10,338 INFO L225 Difference]: With dead ends: 4270 [2021-05-21 22:05:10,338 INFO L226 Difference]: Without dead ends: 3695 [2021-05-21 22:05:10,339 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:10,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3695 states. [2021-05-21 22:05:10,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3695 to 3626. [2021-05-21 22:05:10,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3626 states, 3623 states have (on average 3.004140215291195) internal successors, (10884), 3625 states have internal predecessors, (10884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3626 states to 3626 states and 10884 transitions. [2021-05-21 22:05:10,446 INFO L78 Accepts]: Start accepts. Automaton has 3626 states and 10884 transitions. Word has length 33 [2021-05-21 22:05:10,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:10,447 INFO L482 AbstractCegarLoop]: Abstraction has 3626 states and 10884 transitions. [2021-05-21 22:05:10,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3626 states and 10884 transitions. [2021-05-21 22:05:10,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-05-21 22:05:10,452 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:10,452 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:10,452 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 22:05:10,452 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:10,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1653746266, now seen corresponding path program 1 times [2021-05-21 22:05:10,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:10,462 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101713129] [2021-05-21 22:05:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:10,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:10,494 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:10,494 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101713129] [2021-05-21 22:05:10,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101713129] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:10,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:10,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:05:10,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307935348] [2021-05-21 22:05:10,495 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:05:10,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:10,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:05:10,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:10,496 INFO L87 Difference]: Start difference. First operand 3626 states and 10884 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:10,529 INFO L93 Difference]: Finished difference Result 3433 states and 10272 transitions. [2021-05-21 22:05:10,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:05:10,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-05-21 22:05:10,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:10,544 INFO L225 Difference]: With dead ends: 3433 [2021-05-21 22:05:10,544 INFO L226 Difference]: Without dead ends: 2828 [2021-05-21 22:05:10,544 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:05:10,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2021-05-21 22:05:10,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2828. [2021-05-21 22:05:10,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2828 states, 2826 states have (on average 3.034677990092003) internal successors, (8576), 2827 states have internal predecessors, (8576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2828 states to 2828 states and 8576 transitions. [2021-05-21 22:05:10,653 INFO L78 Accepts]: Start accepts. Automaton has 2828 states and 8576 transitions. Word has length 39 [2021-05-21 22:05:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:10,654 INFO L482 AbstractCegarLoop]: Abstraction has 2828 states and 8576 transitions. [2021-05-21 22:05:10,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2828 states and 8576 transitions. [2021-05-21 22:05:10,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 22:05:10,662 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:10,662 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:10,662 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 22:05:10,662 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:10,663 INFO L82 PathProgramCache]: Analyzing trace with hash 300629937, now seen corresponding path program 1 times [2021-05-21 22:05:10,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:10,663 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638717211] [2021-05-21 22:05:10,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:10,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:10,740 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:10,741 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638717211] [2021-05-21 22:05:10,741 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638717211] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:10,741 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:10,741 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:05:10,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079773415] [2021-05-21 22:05:10,742 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:05:10,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:10,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:05:10,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:10,742 INFO L87 Difference]: Start difference. First operand 2828 states and 8576 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:10,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:10,919 INFO L93 Difference]: Finished difference Result 5896 states and 18121 transitions. [2021-05-21 22:05:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 22:05:10,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-05-21 22:05:10,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:10,937 INFO L225 Difference]: With dead ends: 5896 [2021-05-21 22:05:10,937 INFO L226 Difference]: Without dead ends: 3412 [2021-05-21 22:05:10,937 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:10,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2021-05-21 22:05:11,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3092. [2021-05-21 22:05:11,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3092 states, 3090 states have (on average 3.005177993527508) internal successors, (9286), 3091 states have internal predecessors, (9286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3092 states to 3092 states and 9286 transitions. [2021-05-21 22:05:11,032 INFO L78 Accepts]: Start accepts. Automaton has 3092 states and 9286 transitions. Word has length 50 [2021-05-21 22:05:11,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:11,037 INFO L482 AbstractCegarLoop]: Abstraction has 3092 states and 9286 transitions. [2021-05-21 22:05:11,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,037 INFO L276 IsEmpty]: Start isEmpty. Operand 3092 states and 9286 transitions. [2021-05-21 22:05:11,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 22:05:11,041 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:11,042 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:11,042 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 22:05:11,042 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:11,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:11,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1631964529, now seen corresponding path program 2 times [2021-05-21 22:05:11,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:11,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316548042] [2021-05-21 22:05:11,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:11,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:11,076 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316548042] [2021-05-21 22:05:11,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316548042] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:11,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:11,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:05:11,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079736027] [2021-05-21 22:05:11,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:05:11,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:11,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:05:11,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:11,077 INFO L87 Difference]: Start difference. First operand 3092 states and 9286 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:11,170 INFO L93 Difference]: Finished difference Result 8806 states and 26659 transitions. [2021-05-21 22:05:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:05:11,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-05-21 22:05:11,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:11,212 INFO L225 Difference]: With dead ends: 8806 [2021-05-21 22:05:11,213 INFO L226 Difference]: Without dead ends: 8806 [2021-05-21 22:05:11,216 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:11,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8806 states. [2021-05-21 22:05:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8806 to 3440. [2021-05-21 22:05:11,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3440 states, 3438 states have (on average 3.0072716695753345) internal successors, (10339), 3439 states have internal predecessors, (10339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3440 states to 3440 states and 10339 transitions. [2021-05-21 22:05:11,352 INFO L78 Accepts]: Start accepts. Automaton has 3440 states and 10339 transitions. Word has length 50 [2021-05-21 22:05:11,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:11,352 INFO L482 AbstractCegarLoop]: Abstraction has 3440 states and 10339 transitions. [2021-05-21 22:05:11,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3440 states and 10339 transitions. [2021-05-21 22:05:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 22:05:11,359 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:11,359 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:11,359 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 22:05:11,360 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:11,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:11,360 INFO L82 PathProgramCache]: Analyzing trace with hash 519178271, now seen corresponding path program 3 times [2021-05-21 22:05:11,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:11,361 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675699392] [2021-05-21 22:05:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:11,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:11,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675699392] [2021-05-21 22:05:11,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675699392] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:11,410 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:11,410 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:05:11,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243618070] [2021-05-21 22:05:11,410 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:05:11,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:11,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:05:11,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:11,411 INFO L87 Difference]: Start difference. First operand 3440 states and 10339 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:11,473 INFO L93 Difference]: Finished difference Result 8264 states and 24682 transitions. [2021-05-21 22:05:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:05:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-05-21 22:05:11,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:11,498 INFO L225 Difference]: With dead ends: 8264 [2021-05-21 22:05:11,498 INFO L226 Difference]: Without dead ends: 7988 [2021-05-21 22:05:11,498 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:11,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7988 states. [2021-05-21 22:05:11,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7988 to 3756. [2021-05-21 22:05:11,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3756 states, 3754 states have (on average 3.003729355354289) internal successors, (11276), 3755 states have internal predecessors, (11276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3756 states to 3756 states and 11276 transitions. [2021-05-21 22:05:11,658 INFO L78 Accepts]: Start accepts. Automaton has 3756 states and 11276 transitions. Word has length 50 [2021-05-21 22:05:11,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:11,659 INFO L482 AbstractCegarLoop]: Abstraction has 3756 states and 11276 transitions. [2021-05-21 22:05:11,659 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 3756 states and 11276 transitions. [2021-05-21 22:05:11,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-21 22:05:11,664 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:11,665 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:11,666 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 22:05:11,666 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:11,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:11,666 INFO L82 PathProgramCache]: Analyzing trace with hash 2031652929, now seen corresponding path program 1 times [2021-05-21 22:05:11,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:11,667 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966515932] [2021-05-21 22:05:11,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:11,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:11,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:11,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966515932] [2021-05-21 22:05:11,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966515932] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:11,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:11,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:05:11,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626587000] [2021-05-21 22:05:11,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:05:11,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:11,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:05:11,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:11,728 INFO L87 Difference]: Start difference. First operand 3756 states and 11276 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:11,873 INFO L93 Difference]: Finished difference Result 5592 states and 16576 transitions. [2021-05-21 22:05:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 22:05:11,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-05-21 22:05:11,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:11,880 INFO L225 Difference]: With dead ends: 5592 [2021-05-21 22:05:11,880 INFO L226 Difference]: Without dead ends: 2442 [2021-05-21 22:05:11,880 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:11,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2442 states. [2021-05-21 22:05:11,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2442 to 2206. [2021-05-21 22:05:11,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 2204 states have (on average 2.7132486388384756) internal successors, (5980), 2205 states have internal predecessors, (5980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 5980 transitions. [2021-05-21 22:05:11,928 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 5980 transitions. Word has length 50 [2021-05-21 22:05:11,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:11,928 INFO L482 AbstractCegarLoop]: Abstraction has 2206 states and 5980 transitions. [2021-05-21 22:05:11,928 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 5980 transitions. [2021-05-21 22:05:11,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 22:05:11,932 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:11,932 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:11,932 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 22:05:11,932 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:11,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:11,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1737423522, now seen corresponding path program 1 times [2021-05-21 22:05:11,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:11,933 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477185976] [2021-05-21 22:05:11,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:11,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:11,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:11,968 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477185976] [2021-05-21 22:05:11,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477185976] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:11,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:11,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:05:11,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036218877] [2021-05-21 22:05:11,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:05:11,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:11,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:05:11,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:11,970 INFO L87 Difference]: Start difference. First operand 2206 states and 5980 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:11,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:11,999 INFO L93 Difference]: Finished difference Result 2087 states and 5483 transitions. [2021-05-21 22:05:11,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 22:05:11,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-05-21 22:05:11,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:12,003 INFO L225 Difference]: With dead ends: 2087 [2021-05-21 22:05:12,004 INFO L226 Difference]: Without dead ends: 1895 [2021-05-21 22:05:12,004 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1895 states. [2021-05-21 22:05:12,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1895 to 1758. [2021-05-21 22:05:12,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1758 states, 1756 states have (on average 2.6697038724373576) internal successors, (4688), 1757 states have internal predecessors, (4688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:12,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1758 states to 1758 states and 4688 transitions. [2021-05-21 22:05:12,042 INFO L78 Accepts]: Start accepts. Automaton has 1758 states and 4688 transitions. Word has length 55 [2021-05-21 22:05:12,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:12,042 INFO L482 AbstractCegarLoop]: Abstraction has 1758 states and 4688 transitions. [2021-05-21 22:05:12,043 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:12,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1758 states and 4688 transitions. [2021-05-21 22:05:12,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-05-21 22:05:12,046 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:05:12,046 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-21 22:05:12,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-21 22:05:12,046 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:05:12,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:05:12,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1749463747, now seen corresponding path program 1 times [2021-05-21 22:05:12,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:05:12,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425933356] [2021-05-21 22:05:12,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:05:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:05:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-21 22:05:12,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:05:12,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425933356] [2021-05-21 22:05:12,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425933356] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:05:12,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:05:12,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:05:12,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745171704] [2021-05-21 22:05:12,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:05:12,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:05:12,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:05:12,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:05:12,108 INFO L87 Difference]: Start difference. First operand 1758 states and 4688 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:05:12,126 INFO L93 Difference]: Finished difference Result 928 states and 2509 transitions. [2021-05-21 22:05:12,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-21 22:05:12,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-05-21 22:05:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:05:12,126 INFO L225 Difference]: With dead ends: 928 [2021-05-21 22:05:12,126 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 22:05:12,127 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:05:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 22:05:12,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 22:05:12,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:12,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 22:05:12,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2021-05-21 22:05:12,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:05:12,127 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 22:05:12,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:12,128 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 22:05:12,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:05:12,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-21 22:05:12,128 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 22:05:12,130 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 22:05:12,131 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:05:12,131 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:05:12,131 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:05:12,131 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:05:12,131 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:05:12,131 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:05:12,132 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:05:12,132 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 22:05:12,137 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 131 transitions, 284 flow [2021-05-21 22:05:12,266 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4509 states, 4505 states have (on average 3.331853496115427) internal successors, (15010), 4508 states have internal predecessors, (15010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 4509 states, 4505 states have (on average 3.331853496115427) internal successors, (15010), 4508 states have internal predecessors, (15010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:05:12,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:05:12,288 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 22:05:12,288 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 22:05:12,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 10:05:12 BasicIcfg [2021-05-21 22:05:12,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 22:05:12,292 INFO L168 Benchmark]: Toolchain (without parser) took 4323.47 ms. Allocated memory was 373.3 MB in the beginning and 771.8 MB in the end (delta: 398.5 MB). Free memory was 335.1 MB in the beginning and 687.6 MB in the end (delta: -352.5 MB). Peak memory consumption was 47.9 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:12,293 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 373.3 MB. Free memory was 353.5 MB in the beginning and 353.4 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:05:12,293 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.32 ms. Allocated memory is still 373.3 MB. Free memory was 334.9 MB in the beginning and 335.1 MB in the end (delta: -182.5 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:12,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 373.3 MB. Free memory was 335.1 MB in the beginning and 333.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:12,294 INFO L168 Benchmark]: Boogie Preprocessor took 42.54 ms. Allocated memory is still 373.3 MB. Free memory was 333.0 MB in the beginning and 332.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:12,296 INFO L168 Benchmark]: RCFGBuilder took 529.01 ms. Allocated memory is still 373.3 MB. Free memory was 330.9 MB in the beginning and 302.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:12,296 INFO L168 Benchmark]: TraceAbstraction took 3173.63 ms. Allocated memory was 373.3 MB in the beginning and 771.8 MB in the end (delta: 398.5 MB). Free memory was 302.6 MB in the beginning and 687.6 MB in the end (delta: -385.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.0 GB. [2021-05-21 22:05:12,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 373.3 MB. Free memory was 353.5 MB in the beginning and 353.4 MB in the end (delta: 70.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 521.32 ms. Allocated memory is still 373.3 MB. Free memory was 334.9 MB in the beginning and 335.1 MB in the end (delta: -182.5 kB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 51.41 ms. Allocated memory is still 373.3 MB. Free memory was 335.1 MB in the beginning and 333.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 42.54 ms. Allocated memory is still 373.3 MB. Free memory was 333.0 MB in the beginning and 332.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 529.01 ms. Allocated memory is still 373.3 MB. Free memory was 330.9 MB in the beginning and 302.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3173.63 ms. Allocated memory was 373.3 MB in the beginning and 771.8 MB in the end (delta: 398.5 MB). Free memory was 302.6 MB in the beginning and 687.6 MB in the end (delta: -385.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 764]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 834]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2846.9ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 68.9ms, AutomataDifference: 905.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 187.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1378 SDtfs, 826 SDslu, 1515 SDs, 0 SdLazy, 219 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 217.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 84.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4509occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 919.5ms AutomataMinimizationTime, 9 MinimizatonAttempts, 10360 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.6ms SsaConstructionTime, 113.5ms SatisfiabilityAnalysisTime, 357.0ms InterpolantComputationTime, 407 NumberOfCodeBlocks, 407 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 398 ConstructedInterpolants, 0 QuantifiedInterpolants, 518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 172 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 156.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 21.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 134.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4509occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...