/usr/bin/java -Xmx8000000000 -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-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 16:50:34,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 16:50:34,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 16:50:34,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 16:50:34,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 16:50:34,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 16:50:34,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 16:50:34,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 16:50:34,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 16:50:34,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 16:50:34,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 16:50:34,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 16:50:34,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 16:50:34,842 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 16:50:34,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 16:50:34,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 16:50:34,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 16:50:34,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 16:50:34,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 16:50:34,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 16:50:34,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 16:50:34,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 16:50:34,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 16:50:34,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 16:50:34,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-21 16:50:34,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 16:50:34,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 16:50:34,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 16:50:34,859 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-Delay.epf [2021-08-21 16:50:34,875 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 16:50:34,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 16:50:34,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 16:50:34,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 16:50:34,876 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 16:50:34,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 16:50:34,876 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 16:50:34,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 16:50:34,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 16:50:34,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 16:50:34,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 16:50:34,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 16:50:34,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 16:50:34,879 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 16:50:34,879 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 16:50:35,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 16:50:35,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 16:50:35,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 16:50:35,178 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 16:50:35,179 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 16:50:35,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-08-21 16:50:35,237 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f908dfd1f/cd8415baa3cc472390c93807f193c6a0/FLAG1dd3adb69 [2021-08-21 16:50:35,732 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 16:50:35,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-08-21 16:50:35,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f908dfd1f/cd8415baa3cc472390c93807f193c6a0/FLAG1dd3adb69 [2021-08-21 16:50:35,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f908dfd1f/cd8415baa3cc472390c93807f193c6a0 [2021-08-21 16:50:35,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 16:50:35,767 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 16:50:35,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 16:50:35,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 16:50:35,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 16:50:35,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:50:35" (1/1) ... [2021-08-21 16:50:35,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec1790f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:35, skipping insertion in model container [2021-08-21 16:50:35,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 04:50:35" (1/1) ... [2021-08-21 16:50:35,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 16:50:35,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 16:50:35,968 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-21 16:50:36,115 WARN L228 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] [2021-08-21 16:50:36,120 WARN L228 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] [2021-08-21 16:50:36,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 16:50:36,134 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 16:50:36,148 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-08-21 16:50:36,157 WARN L228 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] [2021-08-21 16:50:36,159 WARN L228 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] [2021-08-21 16:50:36,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 16:50:36,197 INFO L208 MainTranslator]: Completed translation [2021-08-21 16:50:36,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36 WrapperNode [2021-08-21 16:50:36,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 16:50:36,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 16:50:36,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 16:50:36,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 16:50:36,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 16:50:36,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 16:50:36,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 16:50:36,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 16:50:36,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,268 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 16:50:36,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 16:50:36,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 16:50:36,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 16:50:36,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (1/1) ... [2021-08-21 16:50:36,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 16:50:36,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 16:50:36,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 16:50:36,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 16:50:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-21 16:50:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-08-21 16:50:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-08-21 16:50:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-08-21 16:50:36,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-08-21 16:50:36,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 16:50:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 16:50:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 16:50:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 16:50:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 16:50:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 16:50:36,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 16:50:36,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 16:50:36,341 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 16:50:36,719 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 16:50:36,719 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 16:50:36,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:50:36 BoogieIcfgContainer [2021-08-21 16:50:36,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 16:50:36,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 16:50:36,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 16:50:36,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 16:50:36,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 04:50:35" (1/3) ... [2021-08-21 16:50:36,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234c4ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:50:36, skipping insertion in model container [2021-08-21 16:50:36,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 04:50:36" (2/3) ... [2021-08-21 16:50:36,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234c4ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 04:50:36, skipping insertion in model container [2021-08-21 16:50:36,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 04:50:36" (3/3) ... [2021-08-21 16:50:36,727 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-08-21 16:50:36,731 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 16:50:36,732 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 16:50:36,732 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-21 16:50:36,732 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 16:50:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,767 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,767 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,768 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,768 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,768 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,768 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,768 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,768 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,769 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,770 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,770 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,771 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,772 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,773 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,774 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,775 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,776 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,777 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,778 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,779 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,780 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,780 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,780 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,780 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,780 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,781 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,781 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,782 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,784 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,785 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,785 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,785 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,787 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,788 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,789 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,790 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,791 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,792 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,794 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,799 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,800 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,800 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,800 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,800 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,804 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,805 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,805 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,805 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,805 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,810 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,810 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,810 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 16:50:36,817 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-21 16:50:36,843 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 16:50:36,847 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 16:50:36,848 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-21 16:50:37,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 2960 states, 2911 states have (on average 2.4840261078667125) internal successors, (7231), 2959 states have internal predecessors, (7231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 16:50:37,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-21 16:50:37,241 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 16:50:37,242 INFO L512 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] [2021-08-21 16:50:37,242 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 16:50:37,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 16:50:37,248 INFO L82 PathProgramCache]: Analyzing trace with hash -1899804265, now seen corresponding path program 1 times [2021-08-21 16:50:37,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 16:50:37,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147103093] [2021-08-21 16:50:37,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 16:50:37,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 16:50:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 16:50:37,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 16:50:37,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 16:50:37,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147103093] [2021-08-21 16:50:37,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147103093] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 16:50:37,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 16:50:37,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 16:50:37,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289817287] [2021-08-21 16:50:37,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-21 16:50:37,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 16:50:37,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-21 16:50:37,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-21 16:50:37,450 INFO L87 Difference]: Start difference. First operand has 2960 states, 2911 states have (on average 2.4840261078667125) internal successors, (7231), 2959 states have internal predecessors, (7231), 0 states have call successors, (0), 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) [2021-08-21 16:50:37,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 16:50:37,490 INFO L93 Difference]: Finished difference Result 2960 states and 6273 transitions. [2021-08-21 16:50:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-21 16:50:37,492 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 [2021-08-21 16:50:37,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 16:50:37,518 INFO L225 Difference]: With dead ends: 2960 [2021-08-21 16:50:37,518 INFO L226 Difference]: Without dead ends: 2840 [2021-08-21 16:50:37,519 INFO L781 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 [2021-08-21 16:50:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2021-08-21 16:50:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2840. [2021-08-21 16:50:37,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2819 states have (on average 2.17949627527492) internal successors, (6144), 2839 states have internal predecessors, (6144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 16:50:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 6144 transitions. [2021-08-21 16:50:37,644 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 6144 transitions. Word has length 31 [2021-08-21 16:50:37,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 16:50:37,645 INFO L470 AbstractCegarLoop]: Abstraction has 2840 states and 6144 transitions. [2021-08-21 16:50:37,645 INFO L471 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) [2021-08-21 16:50:37,646 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 6144 transitions. [2021-08-21 16:50:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-21 16:50:37,652 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 16:50:37,652 INFO L512 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] [2021-08-21 16:50:37,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 16:50:37,654 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 16:50:37,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 16:50:37,656 INFO L82 PathProgramCache]: Analyzing trace with hash -2096287979, now seen corresponding path program 1 times [2021-08-21 16:50:37,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 16:50:37,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108612150] [2021-08-21 16:50:37,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 16:50:37,657 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 16:50:37,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 16:50:37,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 16:50:37,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 16:50:37,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108612150] [2021-08-21 16:50:37,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108612150] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 16:50:37,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 16:50:37,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 16:50:37,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739123548] [2021-08-21 16:50:37,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 16:50:37,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 16:50:37,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 16:50:37,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 16:50:37,741 INFO L87 Difference]: Start difference. First operand 2840 states and 6144 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) [2021-08-21 16:50:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 16:50:37,781 INFO L93 Difference]: Finished difference Result 2819 states and 6027 transitions. [2021-08-21 16:50:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 16:50:37,782 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 [2021-08-21 16:50:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 16:50:37,790 INFO L225 Difference]: With dead ends: 2819 [2021-08-21 16:50:37,790 INFO L226 Difference]: Without dead ends: 2258 [2021-08-21 16:50:37,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 16:50:37,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2021-08-21 16:50:37,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2171. [2021-08-21 16:50:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2171 states, 2155 states have (on average 2.17122969837587) internal successors, (4679), 2170 states have internal predecessors, (4679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 16:50:37,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2171 states to 2171 states and 4679 transitions. [2021-08-21 16:50:37,833 INFO L78 Accepts]: Start accepts. Automaton has 2171 states and 4679 transitions. Word has length 31 [2021-08-21 16:50:37,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 16:50:37,833 INFO L470 AbstractCegarLoop]: Abstraction has 2171 states and 4679 transitions. [2021-08-21 16:50:37,833 INFO L471 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) [2021-08-21 16:50:37,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2171 states and 4679 transitions. [2021-08-21 16:50:37,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-08-21 16:50:37,835 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 16:50:37,835 INFO L512 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] [2021-08-21 16:50:37,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 16:50:37,835 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 16:50:37,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 16:50:37,841 INFO L82 PathProgramCache]: Analyzing trace with hash -426793321, now seen corresponding path program 1 times [2021-08-21 16:50:37,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 16:50:37,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555205378] [2021-08-21 16:50:37,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 16:50:37,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 16:50:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 16:50:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 16:50:37,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 16:50:37,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555205378] [2021-08-21 16:50:37,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555205378] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 16:50:37,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 16:50:37,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 16:50:37,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808090681] [2021-08-21 16:50:37,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 16:50:37,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 16:50:37,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 16:50:37,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 16:50:37,896 INFO L87 Difference]: Start difference. First operand 2171 states and 4679 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) [2021-08-21 16:50:37,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 16:50:37,921 INFO L93 Difference]: Finished difference Result 2039 states and 4359 transitions. [2021-08-21 16:50:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 16:50:37,922 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 [2021-08-21 16:50:37,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 16:50:37,927 INFO L225 Difference]: With dead ends: 2039 [2021-08-21 16:50:37,927 INFO L226 Difference]: Without dead ends: 1456 [2021-08-21 16:50:37,928 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 16:50:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-08-21 16:50:37,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2021-08-21 16:50:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 1448 states have (on average 2.167817679558011) internal successors, (3139), 1455 states have internal predecessors, (3139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 16:50:37,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 3139 transitions. [2021-08-21 16:50:37,952 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 3139 transitions. Word has length 37 [2021-08-21 16:50:37,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 16:50:37,952 INFO L470 AbstractCegarLoop]: Abstraction has 1456 states and 3139 transitions. [2021-08-21 16:50:37,952 INFO L471 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) [2021-08-21 16:50:37,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 3139 transitions. [2021-08-21 16:50:37,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 16:50:37,956 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 16:50:37,956 INFO L512 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] [2021-08-21 16:50:37,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 16:50:37,956 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 16:50:37,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 16:50:37,957 INFO L82 PathProgramCache]: Analyzing trace with hash -753748269, now seen corresponding path program 1 times [2021-08-21 16:50:37,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 16:50:37,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706412471] [2021-08-21 16:50:37,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 16:50:37,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 16:50:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 16:50:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 16:50:38,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 16:50:38,039 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706412471] [2021-08-21 16:50:38,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706412471] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 16:50:38,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 16:50:38,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 16:50:38,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852846015] [2021-08-21 16:50:38,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 16:50:38,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 16:50:38,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 16:50:38,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 16:50:38,041 INFO L87 Difference]: Start difference. First operand 1456 states and 3139 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) [2021-08-21 16:50:38,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 16:50:38,158 INFO L93 Difference]: Finished difference Result 1710 states and 3653 transitions. [2021-08-21 16:50:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 16:50:38,159 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 [2021-08-21 16:50:38,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 16:50:38,163 INFO L225 Difference]: With dead ends: 1710 [2021-08-21 16:50:38,164 INFO L226 Difference]: Without dead ends: 1270 [2021-08-21 16:50:38,164 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 16:50:38,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2021-08-21 16:50:38,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1164. [2021-08-21 16:50:38,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 1156 states have (on average 2.0856401384083045) internal successors, (2411), 1163 states have internal predecessors, (2411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 16:50:38,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 2411 transitions. [2021-08-21 16:50:38,191 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 2411 transitions. Word has length 48 [2021-08-21 16:50:38,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 16:50:38,192 INFO L470 AbstractCegarLoop]: Abstraction has 1164 states and 2411 transitions. [2021-08-21 16:50:38,192 INFO L471 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) [2021-08-21 16:50:38,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 2411 transitions. [2021-08-21 16:50:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 16:50:38,195 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 16:50:38,195 INFO L512 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] [2021-08-21 16:50:38,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 16:50:38,196 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 16:50:38,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 16:50:38,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1136562323, now seen corresponding path program 1 times [2021-08-21 16:50:38,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 16:50:38,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659251167] [2021-08-21 16:50:38,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 16:50:38,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 16:50:38,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 16:50:38,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 16:50:38,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 16:50:38,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659251167] [2021-08-21 16:50:38,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659251167] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 16:50:38,250 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 16:50:38,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 16:50:38,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78135592] [2021-08-21 16:50:38,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 16:50:38,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 16:50:38,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 16:50:38,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 16:50:38,251 INFO L87 Difference]: Start difference. First operand 1164 states and 2411 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) [2021-08-21 16:50:38,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 16:50:38,351 INFO L93 Difference]: Finished difference Result 1558 states and 3173 transitions. [2021-08-21 16:50:38,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 16:50:38,352 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 [2021-08-21 16:50:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 16:50:38,358 INFO L225 Difference]: With dead ends: 1558 [2021-08-21 16:50:38,358 INFO L226 Difference]: Without dead ends: 1450 [2021-08-21 16:50:38,358 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 16:50:38,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2021-08-21 16:50:38,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1252. [2021-08-21 16:50:38,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1244 states have (on average 2.034565916398714) internal successors, (2531), 1251 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 16:50:38,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 2531 transitions. [2021-08-21 16:50:38,389 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 2531 transitions. Word has length 48 [2021-08-21 16:50:38,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 16:50:38,389 INFO L470 AbstractCegarLoop]: Abstraction has 1252 states and 2531 transitions. [2021-08-21 16:50:38,389 INFO L471 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) [2021-08-21 16:50:38,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 2531 transitions. [2021-08-21 16:50:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 16:50:38,391 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 16:50:38,391 INFO L512 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] [2021-08-21 16:50:38,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 16:50:38,392 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 16:50:38,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 16:50:38,393 INFO L82 PathProgramCache]: Analyzing trace with hash 272928481, now seen corresponding path program 2 times [2021-08-21 16:50:38,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 16:50:38,393 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112768821] [2021-08-21 16:50:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 16:50:38,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 16:50:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 16:50:38,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 16:50:38,441 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 16:50:38,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112768821] [2021-08-21 16:50:38,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112768821] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 16:50:38,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 16:50:38,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 16:50:38,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597412189] [2021-08-21 16:50:38,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 16:50:38,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 16:50:38,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 16:50:38,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 16:50:38,443 INFO L87 Difference]: Start difference. First operand 1252 states and 2531 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) [2021-08-21 16:50:38,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 16:50:38,506 INFO L93 Difference]: Finished difference Result 1828 states and 3647 transitions. [2021-08-21 16:50:38,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 16:50:38,507 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 [2021-08-21 16:50:38,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 16:50:38,512 INFO L225 Difference]: With dead ends: 1828 [2021-08-21 16:50:38,512 INFO L226 Difference]: Without dead ends: 1828 [2021-08-21 16:50:38,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 16:50:38,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2021-08-21 16:50:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1424. [2021-08-21 16:50:38,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1416 states have (on average 2.047316384180791) internal successors, (2899), 1423 states have internal predecessors, (2899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 16:50:38,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2899 transitions. [2021-08-21 16:50:38,538 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2899 transitions. Word has length 48 [2021-08-21 16:50:38,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 16:50:38,539 INFO L470 AbstractCegarLoop]: Abstraction has 1424 states and 2899 transitions. [2021-08-21 16:50:38,539 INFO L471 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) [2021-08-21 16:50:38,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2899 transitions. [2021-08-21 16:50:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 16:50:38,541 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 16:50:38,541 INFO L512 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] [2021-08-21 16:50:38,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 16:50:38,542 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION (and 2 more)] === [2021-08-21 16:50:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 16:50:38,542 INFO L82 PathProgramCache]: Analyzing trace with hash 841528747, now seen corresponding path program 3 times [2021-08-21 16:50:38,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 16:50:38,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297471581] [2021-08-21 16:50:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 16:50:38,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 16:50:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 16:50:38,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 16:50:38,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 16:50:38,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297471581] [2021-08-21 16:50:38,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297471581] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 16:50:38,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 16:50:38,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-21 16:50:38,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094216961] [2021-08-21 16:50:38,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-21 16:50:38,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 16:50:38,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-21 16:50:38,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-21 16:50:38,574 INFO L87 Difference]: Start difference. First operand 1424 states and 2899 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) [2021-08-21 16:50:38,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 16:50:38,617 INFO L93 Difference]: Finished difference Result 1237 states and 2536 transitions. [2021-08-21 16:50:38,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 16:50:38,618 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 [2021-08-21 16:50:38,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 16:50:38,618 INFO L225 Difference]: With dead ends: 1237 [2021-08-21 16:50:38,618 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 16:50:38,619 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-21 16:50:38,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 16:50:38,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 16:50:38,619 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) [2021-08-21 16:50:38,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 16:50:38,619 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2021-08-21 16:50:38,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 16:50:38,619 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 16:50:38,619 INFO L471 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) [2021-08-21 16:50:38,620 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 16:50:38,620 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 16:50:38,621 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 16:50:38,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 16:50:38,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 16:50:38,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 16:50:38,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 16:50:38,622 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 16:50:38,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 16:50:38,625 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 16:50:38,626 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 16:50:38,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 04:50:38 BasicIcfg [2021-08-21 16:50:38,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 16:50:38,628 INFO L168 Benchmark]: Toolchain (without parser) took 2860.70 ms. Allocated memory was 213.9 MB in the beginning and 294.6 MB in the end (delta: 80.7 MB). Free memory was 178.0 MB in the beginning and 178.2 MB in the end (delta: -163.7 kB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2021-08-21 16:50:38,628 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 213.9 MB. Free memory is still 195.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 16:50:38,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.84 ms. Allocated memory is still 213.9 MB. Free memory was 177.8 MB in the beginning and 187.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-08-21 16:50:38,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.32 ms. Allocated memory is still 213.9 MB. Free memory was 187.3 MB in the beginning and 185.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 16:50:38,629 INFO L168 Benchmark]: Boogie Preprocessor took 18.63 ms. Allocated memory is still 213.9 MB. Free memory was 185.4 MB in the beginning and 183.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 16:50:38,629 INFO L168 Benchmark]: RCFGBuilder took 444.96 ms. Allocated memory is still 213.9 MB. Free memory was 183.9 MB in the beginning and 157.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-08-21 16:50:38,629 INFO L168 Benchmark]: TraceAbstraction took 1904.07 ms. Allocated memory was 213.9 MB in the beginning and 294.6 MB in the end (delta: 80.7 MB). Free memory was 157.1 MB in the beginning and 178.2 MB in the end (delta: -21.0 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. [2021-08-21 16:50:38,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 213.9 MB. Free memory is still 195.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 436.84 ms. Allocated memory is still 213.9 MB. Free memory was 177.8 MB in the beginning and 187.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.32 ms. Allocated memory is still 213.9 MB. Free memory was 187.3 MB in the beginning and 185.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 18.63 ms. Allocated memory is still 213.9 MB. Free memory was 185.4 MB in the beginning and 183.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 444.96 ms. Allocated memory is still 213.9 MB. Free memory was 183.9 MB in the beginning and 157.7 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1904.07 ms. Allocated memory was 213.9 MB in the beginning and 294.6 MB in the end (delta: 80.7 MB). Free memory was 157.1 MB in the beginning and 178.2 MB in the end (delta: -21.0 MB). Peak memory consumption was 61.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 13342, positive: 10028, positive conditional: 10028, positive unconditional: 0, negative: 3314, negative conditional: 3314, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10384, positive: 10028, positive conditional: 0, positive unconditional: 10028, negative: 356, negative conditional: 0, negative unconditional: 356, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1831, positive: 1742, positive conditional: 0, positive unconditional: 1742, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1831, positive: 1740, positive conditional: 0, positive unconditional: 1740, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 91, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 103, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 102, negative conditional: 0, negative unconditional: 102, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 10384, positive: 8286, positive conditional: 0, positive unconditional: 8286, negative: 267, negative conditional: 0, negative unconditional: 267, unknown: 1831, unknown conditional: 0, unknown unconditional: 1831] , Statistics on independence cache: Total cache size (in pairs): 1831, Positive cache size: 1742, Positive conditional cache size: 0, Positive unconditional cache size: 1742, Negative cache size: 89, Negative conditional cache size: 0, Negative unconditional cache size: 89, Independence queries for same thread: 2958 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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. OverallTime: 1782.3ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 37.2ms, AutomataDifference: 527.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 374.2ms, PartialOrderReductionTime: 362.2ms, HoareTripleCheckerStatistics: 767 SDtfs, 408 SDslu, 682 SDs, 0 SdLazy, 221 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 208.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2960occurred 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: 265.0ms AutomataMinimizationTime, 7 MinimizatonAttempts, 795 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.9ms SsaConstructionTime, 96.4ms SatisfiabilityAnalysisTime, 286.6ms InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 16:50:38,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...