/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/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-21 22:06:37,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-21 22:06:37,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-21 22:06:37,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-21 22:06:37,099 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-21 22:06:37,102 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-21 22:06:37,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-21 22:06:37,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-21 22:06:37,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-21 22:06:37,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-21 22:06:37,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-21 22:06:37,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-21 22:06:37,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-21 22:06:37,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-21 22:06:37,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-21 22:06:37,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-21 22:06:37,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-21 22:06:37,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-21 22:06:37,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-21 22:06:37,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-21 22:06:37,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-21 22:06:37,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-21 22:06:37,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-21 22:06:37,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-21 22:06:37,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-21 22:06:37,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-21 22:06:37,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-21 22:06:37,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-21 22:06:37,158 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 22:06:37,195 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-21 22:06:37,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-21 22:06:37,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-21 22:06:37,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-21 22:06:37,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-21 22:06:37,198 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-21 22:06:37,198 INFO L138 SettingsManager]: * Use SBE=true [2021-05-21 22:06:37,199 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-21 22:06:37,199 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-21 22:06:37,199 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-21 22:06:37,200 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-21 22:06:37,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-21 22:06:37,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-21 22:06:37,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-21 22:06:37,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-21 22:06:37,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-21 22:06:37,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-21 22:06:37,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-21 22:06:37,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-21 22:06:37,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-21 22:06:37,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-21 22:06:37,201 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-21 22:06:37,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-21 22:06:37,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-21 22:06:37,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-21 22:06:37,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-21 22:06:37,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-21 22:06:37,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-21 22:06:37,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-21 22:06:37,202 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-21 22:06:37,202 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-21 22:06:37,202 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-21 22:06:37,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-21 22:06:37,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-21 22:06:37,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-21 22:06:37,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-21 22:06:37,485 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-21 22:06:37,485 INFO L275 PluginConnector]: CDTParser initialized [2021-05-21 22:06:37,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-05-21 22:06:37,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3969f934/e16a9b50b5f543d699de8d4187320110/FLAG20f9ecc9f [2021-05-21 22:06:37,992 INFO L306 CDTParser]: Found 1 translation units. [2021-05-21 22:06:37,998 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-05-21 22:06:38,020 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3969f934/e16a9b50b5f543d699de8d4187320110/FLAG20f9ecc9f [2021-05-21 22:06:38,521 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3969f934/e16a9b50b5f543d699de8d4187320110 [2021-05-21 22:06:38,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-21 22:06:38,524 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-21 22:06:38,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-21 22:06:38,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-21 22:06:38,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-21 22:06:38,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:06:38" (1/1) ... [2021-05-21 22:06:38,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e3138f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:38, skipping insertion in model container [2021-05-21 22:06:38,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.05 10:06:38" (1/1) ... [2021-05-21 22:06:38,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-21 22:06:38,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-21 22:06:38,773 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:06:38,958 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/szymanski.i[31505,31518] [2021-05-21 22:06:38,975 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/szymanski.i[32915,32928] [2021-05-21 22:06:38,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:06:38,990 INFO L203 MainTranslator]: Completed pre-run [2021-05-21 22:06:38,998 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-05-21 22:06:39,014 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/szymanski.i[31505,31518] [2021-05-21 22:06:39,017 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/szymanski.i[32915,32928] [2021-05-21 22:06:39,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-21 22:06:39,074 INFO L208 MainTranslator]: Completed translation [2021-05-21 22:06:39,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39 WrapperNode [2021-05-21 22:06:39,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-21 22:06:39,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-21 22:06:39,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-21 22:06:39,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-21 22:06:39,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-21 22:06:39,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-21 22:06:39,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-21 22:06:39,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-21 22:06:39,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (1/1) ... [2021-05-21 22:06:39,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-21 22:06:39,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-21 22:06:39,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-21 22:06:39,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-21 22:06:39,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (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 22:06:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-21 22:06:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-05-21 22:06:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-05-21 22:06:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-05-21 22:06:39,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-05-21 22:06:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-21 22:06:39,193 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-05-21 22:06:39,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-21 22:06:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-21 22:06:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-21 22:06:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-05-21 22:06:39,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-21 22:06:39,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-21 22:06:39,197 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 22:06:39,634 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-21 22:06:39,635 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-05-21 22:06:39,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:06:39 BoogieIcfgContainer [2021-05-21 22:06:39,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-21 22:06:39,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-21 22:06:39,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-21 22:06:39,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-21 22:06:39,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.05 10:06:38" (1/3) ... [2021-05-21 22:06:39,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e4a54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:06:39, skipping insertion in model container [2021-05-21 22:06:39,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.05 10:06:39" (2/3) ... [2021-05-21 22:06:39,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e4a54e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.05 10:06:39, skipping insertion in model container [2021-05-21 22:06:39,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.05 10:06:39" (3/3) ... [2021-05-21 22:06:39,644 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-05-21 22:06:39,651 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-21 22:06:39,651 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-21 22:06:39,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-05-21 22:06:39,652 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-21 22:06:39,695 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,695 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,695 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,695 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,696 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,696 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,696 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,696 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,696 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,696 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,697 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,698 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,699 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,699 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,699 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,700 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,700 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,700 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,700 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,701 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,701 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,701 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,701 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,701 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,701 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,702 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,702 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,703 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,703 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,703 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,703 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,704 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,704 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,705 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,705 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,705 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,705 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,705 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,706 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,706 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,709 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,709 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,710 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,710 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,710 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,710 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,710 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,711 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,711 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,711 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,712 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,713 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,713 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,713 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,714 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,715 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,716 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,717 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,717 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,718 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,718 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,718 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,718 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,719 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,719 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,719 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,719 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,719 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,719 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,720 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,720 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,720 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,720 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,720 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,721 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,721 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,722 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,723 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,733 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,738 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,739 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,739 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,739 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,739 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-21 22:06:39,748 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-21 22:06:39,769 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-21 22:06:39,788 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:06:39,788 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:06:39,788 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:06:39,788 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:06:39,788 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:06:39,788 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:06:39,789 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:06:39,789 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-21 22:06:39,802 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 115 transitions, 252 flow [2021-05-21 22:06:39,950 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 0 states have call successors, (0), 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 22:06:39,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 0 states have call successors, (0), 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 22:06:39,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-21 22:06:39,976 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:06:39,977 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] [2021-05-21 22:06:39,977 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:06:39,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:06:39,983 INFO L82 PathProgramCache]: Analyzing trace with hash -1929720339, now seen corresponding path program 1 times [2021-05-21 22:06:39,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:06:39,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181800296] [2021-05-21 22:06:39,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:06:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:06:40,138 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 22:06:40,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:06:40,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181800296] [2021-05-21 22:06:40,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181800296] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:06:40,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:06:40,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-05-21 22:06:40,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939381422] [2021-05-21 22:06:40,143 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-05-21 22:06:40,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:06:40,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-05-21 22:06:40,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-05-21 22:06:40,163 INFO L87 Difference]: Start difference. First operand has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 0 states have call successors, (0), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:06:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:06:40,220 INFO L93 Difference]: Finished difference Result 3267 states and 9607 transitions. [2021-05-21 22:06:40,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-21 22:06:40,221 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-05-21 22:06:40,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:06:40,250 INFO L225 Difference]: With dead ends: 3267 [2021-05-21 22:06:40,250 INFO L226 Difference]: Without dead ends: 3020 [2021-05-21 22:06:40,251 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 22:06:40,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2021-05-21 22:06:40,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 3020. [2021-05-21 22:06:40,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3017 states have (on average 2.9539277427908517) internal successors, (8912), 3019 states have internal predecessors, (8912), 0 states have call successors, (0), 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 22:06:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 8912 transitions. [2021-05-21 22:06:40,407 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 8912 transitions. Word has length 31 [2021-05-21 22:06:40,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:06:40,408 INFO L482 AbstractCegarLoop]: Abstraction has 3020 states and 8912 transitions. [2021-05-21 22:06:40,408 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:06:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 8912 transitions. [2021-05-21 22:06:40,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-05-21 22:06:40,415 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:06:40,415 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] [2021-05-21 22:06:40,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-21 22:06:40,415 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:06:40,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:06:40,418 INFO L82 PathProgramCache]: Analyzing trace with hash -2126204053, now seen corresponding path program 1 times [2021-05-21 22:06:40,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:06:40,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761026434] [2021-05-21 22:06:40,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:06:40,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:06:40,518 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 22:06:40,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:06:40,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761026434] [2021-05-21 22:06:40,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761026434] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:06:40,519 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:06:40,519 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:06:40,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302164051] [2021-05-21 22:06:40,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:06:40,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:06:40,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:06:40,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:06:40,521 INFO L87 Difference]: Start difference. First operand 3020 states and 8912 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:06:40,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:06:40,594 INFO L93 Difference]: Finished difference Result 3008 states and 8781 transitions. [2021-05-21 22:06:40,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:06:40,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-05-21 22:06:40,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:06:40,609 INFO L225 Difference]: With dead ends: 3008 [2021-05-21 22:06:40,609 INFO L226 Difference]: Without dead ends: 2450 [2021-05-21 22:06:40,610 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:06:40,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2450 states. [2021-05-21 22:06:40,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2450 to 2357. [2021-05-21 22:06:40,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2357 states, 2354 states have (on average 2.9345794392523366) internal successors, (6908), 2356 states have internal predecessors, (6908), 0 states have call successors, (0), 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 22:06:40,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2357 states to 2357 states and 6908 transitions. [2021-05-21 22:06:40,682 INFO L78 Accepts]: Start accepts. Automaton has 2357 states and 6908 transitions. Word has length 31 [2021-05-21 22:06:40,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:06:40,683 INFO L482 AbstractCegarLoop]: Abstraction has 2357 states and 6908 transitions. [2021-05-21 22:06:40,683 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:06:40,683 INFO L276 IsEmpty]: Start isEmpty. Operand 2357 states and 6908 transitions. [2021-05-21 22:06:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-05-21 22:06:40,685 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:06:40,685 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] [2021-05-21 22:06:40,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-21 22:06:40,686 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:06:40,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:06:40,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1906086302, now seen corresponding path program 1 times [2021-05-21 22:06:40,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:06:40,686 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135015005] [2021-05-21 22:06:40,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:06:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:06:40,809 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 22:06:40,809 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:06:40,809 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135015005] [2021-05-21 22:06:40,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135015005] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:06:40,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:06:40,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-21 22:06:40,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424209841] [2021-05-21 22:06:40,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-21 22:06:40,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:06:40,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-21 22:06:40,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:06:40,811 INFO L87 Difference]: Start difference. First operand 2357 states and 6908 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:06:40,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:06:40,840 INFO L93 Difference]: Finished difference Result 2228 states and 6484 transitions. [2021-05-21 22:06:40,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-21 22:06:40,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-05-21 22:06:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:06:40,854 INFO L225 Difference]: With dead ends: 2228 [2021-05-21 22:06:40,854 INFO L226 Difference]: Without dead ends: 1628 [2021-05-21 22:06:40,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-21 22:06:40,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2021-05-21 22:06:40,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1628. [2021-05-21 22:06:40,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1626 states have (on average 2.9145141451414514) internal successors, (4739), 1627 states have internal predecessors, (4739), 0 states have call successors, (0), 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 22:06:40,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 4739 transitions. [2021-05-21 22:06:40,898 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 4739 transitions. Word has length 37 [2021-05-21 22:06:40,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:06:40,899 INFO L482 AbstractCegarLoop]: Abstraction has 1628 states and 4739 transitions. [2021-05-21 22:06:40,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-21 22:06:40,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 4739 transitions. [2021-05-21 22:06:40,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 22:06:40,904 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:06:40,904 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] [2021-05-21 22:06:40,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-21 22:06:40,905 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:06:40,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:06:40,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1950418830, now seen corresponding path program 1 times [2021-05-21 22:06:40,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:06:40,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262885740] [2021-05-21 22:06:40,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:06:40,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:06:40,989 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 22:06:40,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:06:40,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262885740] [2021-05-21 22:06:40,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262885740] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:06:40,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:06:40,990 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:06:40,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342208520] [2021-05-21 22:06:40,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:06:40,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:06:40,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:06:40,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:06:40,992 INFO L87 Difference]: Start difference. First operand 1628 states and 4739 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:06:41,092 INFO L93 Difference]: Finished difference Result 1892 states and 5472 transitions. [2021-05-21 22:06:41,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:06:41,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-21 22:06:41,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:06:41,099 INFO L225 Difference]: With dead ends: 1892 [2021-05-21 22:06:41,099 INFO L226 Difference]: Without dead ends: 1432 [2021-05-21 22:06:41,099 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:06:41,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2021-05-21 22:06:41,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1316. [2021-05-21 22:06:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1314 states have (on average 2.840943683409437) internal successors, (3733), 1315 states have internal predecessors, (3733), 0 states have call successors, (0), 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 22:06:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 3733 transitions. [2021-05-21 22:06:41,133 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 3733 transitions. Word has length 48 [2021-05-21 22:06:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:06:41,135 INFO L482 AbstractCegarLoop]: Abstraction has 1316 states and 3733 transitions. [2021-05-21 22:06:41,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 3733 transitions. [2021-05-21 22:06:41,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 22:06:41,138 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:06:41,138 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] [2021-05-21 22:06:41,138 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-21 22:06:41,138 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:06:41,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:06:41,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1068051064, now seen corresponding path program 1 times [2021-05-21 22:06:41,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:06:41,139 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802341946] [2021-05-21 22:06:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:06:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:06:41,186 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 22:06:41,186 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:06:41,186 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802341946] [2021-05-21 22:06:41,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802341946] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:06:41,187 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:06:41,187 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:06:41,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396654991] [2021-05-21 22:06:41,187 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:06:41,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:06:41,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:06:41,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:06:41,188 INFO L87 Difference]: Start difference. First operand 1316 states and 3733 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:06:41,290 INFO L93 Difference]: Finished difference Result 1724 states and 4826 transitions. [2021-05-21 22:06:41,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:06:41,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-21 22:06:41,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:06:41,298 INFO L225 Difference]: With dead ends: 1724 [2021-05-21 22:06:41,298 INFO L226 Difference]: Without dead ends: 1612 [2021-05-21 22:06:41,302 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:06:41,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2021-05-21 22:06:41,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1404. [2021-05-21 22:06:41,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1404 states, 1402 states have (on average 2.7924393723252496) internal successors, (3915), 1403 states have internal predecessors, (3915), 0 states have call successors, (0), 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 22:06:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 3915 transitions. [2021-05-21 22:06:41,338 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 3915 transitions. Word has length 48 [2021-05-21 22:06:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:06:41,338 INFO L482 AbstractCegarLoop]: Abstraction has 1404 states and 3915 transitions. [2021-05-21 22:06:41,338 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 3915 transitions. [2021-05-21 22:06:41,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 22:06:41,341 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:06:41,341 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] [2021-05-21 22:06:41,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-21 22:06:41,342 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:06:41,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:06:41,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1786413486, now seen corresponding path program 2 times [2021-05-21 22:06:41,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:06:41,343 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791616462] [2021-05-21 22:06:41,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:06:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:06:41,374 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 22:06:41,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:06:41,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791616462] [2021-05-21 22:06:41,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791616462] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:06:41,375 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:06:41,375 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:06:41,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219647020] [2021-05-21 22:06:41,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:06:41,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:06:41,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:06:41,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:06:41,376 INFO L87 Difference]: Start difference. First operand 1404 states and 3915 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:06:41,480 INFO L93 Difference]: Finished difference Result 1989 states and 5478 transitions. [2021-05-21 22:06:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:06:41,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-21 22:06:41,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:06:41,493 INFO L225 Difference]: With dead ends: 1989 [2021-05-21 22:06:41,493 INFO L226 Difference]: Without dead ends: 1989 [2021-05-21 22:06:41,494 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:06:41,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1989 states. [2021-05-21 22:06:41,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1989 to 1576. [2021-05-21 22:06:41,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1574 states have (on average 2.8030495552731893) internal successors, (4412), 1575 states have internal predecessors, (4412), 0 states have call successors, (0), 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 22:06:41,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 4412 transitions. [2021-05-21 22:06:41,543 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 4412 transitions. Word has length 48 [2021-05-21 22:06:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:06:41,545 INFO L482 AbstractCegarLoop]: Abstraction has 1576 states and 4412 transitions. [2021-05-21 22:06:41,545 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 4412 transitions. [2021-05-21 22:06:41,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-21 22:06:41,551 INFO L513 BasicCegarLoop]: Found error trace [2021-05-21 22:06:41,551 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] [2021-05-21 22:06:41,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-21 22:06:41,552 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-21 22:06:41,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-21 22:06:41,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1180464832, now seen corresponding path program 3 times [2021-05-21 22:06:41,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-21 22:06:41,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660527874] [2021-05-21 22:06:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-21 22:06:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-21 22:06:41,605 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 22:06:41,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-21 22:06:41,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660527874] [2021-05-21 22:06:41,607 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660527874] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-21 22:06:41,607 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-21 22:06:41,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-21 22:06:41,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522025031] [2021-05-21 22:06:41,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-21 22:06:41,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-21 22:06:41,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-21 22:06:41,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-21 22:06:41,609 INFO L87 Difference]: Start difference. First operand 1576 states and 4412 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-21 22:06:41,670 INFO L93 Difference]: Finished difference Result 1374 states and 3884 transitions. [2021-05-21 22:06:41,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-21 22:06:41,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-21 22:06:41,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-21 22:06:41,671 INFO L225 Difference]: With dead ends: 1374 [2021-05-21 22:06:41,671 INFO L226 Difference]: Without dead ends: 0 [2021-05-21 22:06:41,672 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-21 22:06:41,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-21 22:06:41,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-21 22:06:41,672 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 22:06:41,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-21 22:06:41,673 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-05-21 22:06:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-21 22:06:41,673 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-21 22:06:41,673 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 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 22:06:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-21 22:06:41,673 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:06:41,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-21 22:06:41,674 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-21 22:06:41,676 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-21 22:06:41,677 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-21 22:06:41,677 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-21 22:06:41,677 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-21 22:06:41,677 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-21 22:06:41,677 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-21 22:06:41,677 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-21 22:06:41,677 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-21 22:06:41,678 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-21 22:06:41,681 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 100 places, 115 transitions, 252 flow [2021-05-21 22:06:41,759 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 0 states have call successors, (0), 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 22:06:41,765 INFO L276 IsEmpty]: Start isEmpty. Operand has 3267 states, 3263 states have (on average 3.2935948513637756) internal successors, (10747), 3266 states have internal predecessors, (10747), 0 states have call successors, (0), 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 22:06:41,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-21 22:06:41,778 INFO L315 ceAbstractionStarter]: Result for error location InUseError was SAFE (2/2) [2021-05-21 22:06:41,778 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-05-21 22:06:41,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.05 10:06:41 BasicIcfg [2021-05-21 22:06:41,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-21 22:06:41,784 INFO L168 Benchmark]: Toolchain (without parser) took 3258.53 ms. Allocated memory was 343.9 MB in the beginning and 455.1 MB in the end (delta: 111.1 MB). Free memory was 306.9 MB in the beginning and 344.5 MB in the end (delta: -37.6 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.0 GB. [2021-05-21 22:06:41,785 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 343.9 MB. Free memory was 325.2 MB in the beginning and 325.1 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:06:41,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 549.53 ms. Allocated memory is still 343.9 MB. Free memory was 306.7 MB in the beginning and 306.6 MB in the end (delta: 88.8 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. [2021-05-21 22:06:41,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.84 ms. Allocated memory is still 343.9 MB. Free memory was 306.6 MB in the beginning and 304.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-21 22:06:41,786 INFO L168 Benchmark]: Boogie Preprocessor took 36.63 ms. Allocated memory is still 343.9 MB. Free memory was 304.5 MB in the beginning and 303.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-21 22:06:41,787 INFO L168 Benchmark]: RCFGBuilder took 493.84 ms. Allocated memory is still 343.9 MB. Free memory was 302.4 MB in the beginning and 275.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-05-21 22:06:41,787 INFO L168 Benchmark]: TraceAbstraction took 2143.01 ms. Allocated memory was 343.9 MB in the beginning and 455.1 MB in the end (delta: 111.1 MB). Free memory was 275.2 MB in the beginning and 344.5 MB in the end (delta: -69.4 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.0 GB. [2021-05-21 22:06:41,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 343.9 MB. Free memory was 325.2 MB in the beginning and 325.1 MB in the end (delta: 71.8 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 549.53 ms. Allocated memory is still 343.9 MB. Free memory was 306.7 MB in the beginning and 306.6 MB in the end (delta: 88.8 kB). Peak memory consumption was 8.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.84 ms. Allocated memory is still 343.9 MB. Free memory was 306.6 MB in the beginning and 304.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.63 ms. Allocated memory is still 343.9 MB. Free memory was 304.5 MB in the beginning and 303.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 493.84 ms. Allocated memory is still 343.9 MB. Free memory was 302.4 MB in the beginning and 275.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2143.01 ms. Allocated memory was 343.9 MB in the beginning and 455.1 MB in the end (delta: 111.1 MB). Free memory was 275.2 MB in the beginning and 344.5 MB in the end (delta: -69.4 MB). Peak memory consumption was 43.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 802]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 745]: 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, 150 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1887.5ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 50.2ms, AutomataDifference: 643.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 161.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 842 SDtfs, 453 SDslu, 737 SDs, 0 SdLazy, 221 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 236.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3267occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 378.0ms AutomataMinimizationTime, 7 MinimizatonAttempts, 830 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 31.3ms SsaConstructionTime, 104.7ms SatisfiabilityAnalysisTime, 324.5ms InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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, 150 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 100.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 18.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 81.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3267occurred 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...