/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 09:37:52,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 09:37:52,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 09:37:52,722 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 09:37:52,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 09:37:52,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 09:37:52,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 09:37:52,726 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 09:37:52,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 09:37:52,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 09:37:52,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 09:37:52,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 09:37:52,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 09:37:52,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 09:37:52,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 09:37:52,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 09:37:52,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 09:37:52,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 09:37:52,736 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 09:37:52,738 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 09:37:52,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 09:37:52,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 09:37:52,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 09:37:52,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 09:37:52,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 09:37:52,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 09:37:52,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 09:37:52,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 09:37:52,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 09:37:52,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 09:37:52,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 09:37:52,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 09:37:52,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 09:37:52,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 09:37:52,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 09:37:52,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 09:37:52,756 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-SemanticLbe.epf [2021-03-11 09:37:52,784 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 09:37:52,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 09:37:52,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 09:37:52,788 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 09:37:52,788 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 09:37:52,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 09:37:52,788 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 09:37:52,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 09:37:52,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 09:37:52,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 09:37:52,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 09:37:52,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 09:37:52,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 09:37:52,790 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 09:37:52,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 09:37:52,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 09:37:52,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 09:37:52,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 09:37:52,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 09:37:52,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 09:37:52,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 09:37:52,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 09:37:52,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 09:37:52,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 09:37:52,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 09:37:52,791 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 09:37:52,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 09:37:52,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 09:37:52,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 09:37:53,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 09:37:53,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 09:37:53,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 09:37:53,133 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-11 09:37:53,134 INFO L275 PluginConnector]: CDTParser initialized [2021-03-11 09:37:53,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-03-11 09:37:53,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c8af8ff/d5bca8bfe8cd443c80f3adc6f85de488/FLAG93e4cb5f7 [2021-03-11 09:37:53,724 INFO L306 CDTParser]: Found 1 translation units. [2021-03-11 09:37:53,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2021-03-11 09:37:53,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c8af8ff/d5bca8bfe8cd443c80f3adc6f85de488/FLAG93e4cb5f7 [2021-03-11 09:37:54,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0c8af8ff/d5bca8bfe8cd443c80f3adc6f85de488 [2021-03-11 09:37:54,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 09:37:54,018 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-11 09:37:54,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-11 09:37:54,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-11 09:37:54,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-11 09:37:54,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf164f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54, skipping insertion in model container [2021-03-11 09:37:54,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-11 09:37:54,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-11 09:37:54,203 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 09:37:54,352 WARN L226 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] [2021-03-11 09:37:54,360 WARN L226 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] [2021-03-11 09:37:54,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:37:54,412 INFO L203 MainTranslator]: Completed pre-run [2021-03-11 09:37:54,442 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-11 09:37:54,468 WARN L226 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] [2021-03-11 09:37:54,481 WARN L226 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] [2021-03-11 09:37:54,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-11 09:37:54,555 INFO L208 MainTranslator]: Completed translation [2021-03-11 09:37:54,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54 WrapperNode [2021-03-11 09:37:54,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-11 09:37:54,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 09:37:54,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 09:37:54,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 09:37:54,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 09:37:54,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 09:37:54,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 09:37:54,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 09:37:54,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... [2021-03-11 09:37:54,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 09:37:54,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 09:37:54,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 09:37:54,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 09:37:54,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 09:37:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-11 09:37:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-03-11 09:37:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-03-11 09:37:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-03-11 09:37:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-03-11 09:37:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-11 09:37:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-11 09:37:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-11 09:37:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-11 09:37:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-11 09:37:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-11 09:37:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 09:37:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 09:37:54,743 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 09:37:55,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 09:37:55,165 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-03-11 09:37:55,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:37:55 BoogieIcfgContainer [2021-03-11 09:37:55,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 09:37:55,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 09:37:55,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 09:37:55,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 09:37:55,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.03 09:37:54" (1/3) ... [2021-03-11 09:37:55,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576c18ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:37:55, skipping insertion in model container [2021-03-11 09:37:55,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.03 09:37:54" (2/3) ... [2021-03-11 09:37:55,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576c18ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 09:37:55, skipping insertion in model container [2021-03-11 09:37:55,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 09:37:55" (3/3) ... [2021-03-11 09:37:55,175 INFO L111 eAbstractionObserver]: Analyzing ICFG szymanski.i [2021-03-11 09:37:55,180 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 09:37:55,181 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 09:37:55,185 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-03-11 09:37:55,185 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 09:37:55,212 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,212 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,212 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,212 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,213 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,213 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,213 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,213 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,213 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,213 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,214 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,215 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,216 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,218 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,219 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,220 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,221 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,221 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,222 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,223 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,224 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,225 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,226 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,227 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,228 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,228 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f21~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,236 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,236 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f12~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,236 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-11 09:37:55,242 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-11 09:37:55,257 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-03-11 09:37:55,273 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 09:37:55,274 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 09:37:55,274 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 09:37:55,274 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 09:37:55,274 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 09:37:55,274 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 09:37:55,274 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 09:37:55,274 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 09:37:55,286 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 09:37:55,295 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 109 transitions, 240 flow [2021-03-11 09:37:55,297 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 109 transitions, 240 flow [2021-03-11 09:37:55,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 94 places, 109 transitions, 240 flow [2021-03-11 09:37:55,350 INFO L129 PetriNetUnfolder]: 21/109 cut-off events. [2021-03-11 09:37:55,350 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-11 09:37:55,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120 conditions, 109 events. 21/109 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 160 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2021-03-11 09:37:55,358 INFO L116 LiptonReduction]: Number of co-enabled transitions 3528 [2021-03-11 09:37:57,504 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-11 09:37:57,730 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2021-03-11 09:37:57,810 INFO L131 LiptonReduction]: Checked pairs total: 9278 [2021-03-11 09:37:57,810 INFO L133 LiptonReduction]: Total number of compositions: 72 [2021-03-11 09:37:57,817 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 53 transitions, 128 flow [2021-03-11 09:37:57,850 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 575 states, 571 states have (on average 2.8774080560420314) internal successors, (1643), 574 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 575 states, 571 states have (on average 2.8774080560420314) internal successors, (1643), 574 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:57,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 09:37:57,861 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:37:57,862 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:37:57,862 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:37:57,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:37:57,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1055252369, now seen corresponding path program 1 times [2021-03-11 09:37:57,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:37:57,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076760123] [2021-03-11 09:37:57,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:37:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:37:58,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:37:58,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:37:58,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076760123] [2021-03-11 09:37:58,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:37:58,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 09:37:58,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111522221] [2021-03-11 09:37:58,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:37:58,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:37:58,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:37:58,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:37:58,028 INFO L87 Difference]: Start difference. First operand has 575 states, 571 states have (on average 2.8774080560420314) internal successors, (1643), 574 states have internal predecessors, (1643), 0 states have call successors, (0), 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 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:37:58,089 INFO L93 Difference]: Finished difference Result 623 states and 1713 transitions. [2021-03-11 09:37:58,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:37:58,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2021-03-11 09:37:58,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:37:58,117 INFO L225 Difference]: With dead ends: 623 [2021-03-11 09:37:58,118 INFO L226 Difference]: Without dead ends: 446 [2021-03-11 09:37:58,119 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:37:58,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-03-11 09:37:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 428. [2021-03-11 09:37:58,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 424 states have (on average 2.8632075471698113) internal successors, (1214), 427 states have internal predecessors, (1214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 1214 transitions. [2021-03-11 09:37:58,207 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 1214 transitions. Word has length 10 [2021-03-11 09:37:58,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:37:58,207 INFO L480 AbstractCegarLoop]: Abstraction has 428 states and 1214 transitions. [2021-03-11 09:37:58,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,208 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 1214 transitions. [2021-03-11 09:37:58,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-03-11 09:37:58,211 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:37:58,211 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:37:58,211 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 09:37:58,211 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:37:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:37:58,212 INFO L82 PathProgramCache]: Analyzing trace with hash -512880611, now seen corresponding path program 1 times [2021-03-11 09:37:58,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:37:58,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469141889] [2021-03-11 09:37:58,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:37:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:37:58,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 09:37:58,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:37:58,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469141889] [2021-03-11 09:37:58,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:37:58,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-11 09:37:58,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181641059] [2021-03-11 09:37:58,292 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:37:58,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:37:58,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:37:58,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:37:58,295 INFO L87 Difference]: Start difference. First operand 428 states and 1214 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:37:58,321 INFO L93 Difference]: Finished difference Result 413 states and 1158 transitions. [2021-03-11 09:37:58,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:37:58,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 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 12 [2021-03-11 09:37:58,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:37:58,324 INFO L225 Difference]: With dead ends: 413 [2021-03-11 09:37:58,325 INFO L226 Difference]: Without dead ends: 308 [2021-03-11 09:37:58,325 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:37:58,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-03-11 09:37:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2021-03-11 09:37:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 304 states have (on average 2.848684210526316) internal successors, (866), 307 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 866 transitions. [2021-03-11 09:37:58,333 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 866 transitions. Word has length 12 [2021-03-11 09:37:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:37:58,334 INFO L480 AbstractCegarLoop]: Abstraction has 308 states and 866 transitions. [2021-03-11 09:37:58,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,334 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 866 transitions. [2021-03-11 09:37:58,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:37:58,339 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:37:58,339 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:37:58,340 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 09:37:58,340 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:37:58,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:37:58,348 INFO L82 PathProgramCache]: Analyzing trace with hash 596325589, now seen corresponding path program 1 times [2021-03-11 09:37:58,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:37:58,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016986127] [2021-03-11 09:37:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:37:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:37:58,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:37:58,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-11 09:37:58,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:37:58,435 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016986127] [2021-03-11 09:37:58,435 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:37:58,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 09:37:58,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566454672] [2021-03-11 09:37:58,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 09:37:58,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:37:58,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 09:37:58,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 09:37:58,437 INFO L87 Difference]: Start difference. First operand 308 states and 866 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:37:58,513 INFO L93 Difference]: Finished difference Result 362 states and 996 transitions. [2021-03-11 09:37:58,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:37:58,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-03-11 09:37:58,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:37:58,515 INFO L225 Difference]: With dead ends: 362 [2021-03-11 09:37:58,515 INFO L226 Difference]: Without dead ends: 272 [2021-03-11 09:37:58,515 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 09:37:58,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-03-11 09:37:58,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 254. [2021-03-11 09:37:58,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 250 states have (on average 2.668) internal successors, (667), 253 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 667 transitions. [2021-03-11 09:37:58,523 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 667 transitions. Word has length 19 [2021-03-11 09:37:58,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:37:58,523 INFO L480 AbstractCegarLoop]: Abstraction has 254 states and 667 transitions. [2021-03-11 09:37:58,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 667 transitions. [2021-03-11 09:37:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:37:58,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:37:58,524 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:37:58,524 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 09:37:58,525 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:37:58,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:37:58,526 INFO L82 PathProgramCache]: Analyzing trace with hash -146786077, now seen corresponding path program 1 times [2021-03-11 09:37:58,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:37:58,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666695686] [2021-03-11 09:37:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:37:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:37:58,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,575 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:37:58,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:37:58,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:37:58,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666695686] [2021-03-11 09:37:58,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:37:58,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 09:37:58,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124375992] [2021-03-11 09:37:58,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 09:37:58,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:37:58,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 09:37:58,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 09:37:58,586 INFO L87 Difference]: Start difference. First operand 254 states and 667 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:37:58,663 INFO L93 Difference]: Finished difference Result 328 states and 851 transitions. [2021-03-11 09:37:58,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:37:58,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-03-11 09:37:58,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:37:58,665 INFO L225 Difference]: With dead ends: 328 [2021-03-11 09:37:58,665 INFO L226 Difference]: Without dead ends: 284 [2021-03-11 09:37:58,666 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 09:37:58,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-03-11 09:37:58,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 252. [2021-03-11 09:37:58,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 248 states have (on average 2.620967741935484) internal successors, (650), 251 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 650 transitions. [2021-03-11 09:37:58,672 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 650 transitions. Word has length 19 [2021-03-11 09:37:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:37:58,673 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 650 transitions. [2021-03-11 09:37:58,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 650 transitions. [2021-03-11 09:37:58,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:37:58,674 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:37:58,674 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:37:58,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 09:37:58,674 INFO L428 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:37:58,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:37:58,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1484292747, now seen corresponding path program 2 times [2021-03-11 09:37:58,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:37:58,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358936486] [2021-03-11 09:37:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:37:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:37:58,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:37:58,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:37:58,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358936486] [2021-03-11 09:37:58,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:37:58,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 09:37:58,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643383429] [2021-03-11 09:37:58,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 09:37:58,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:37:58,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 09:37:58,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:37:58,731 INFO L87 Difference]: Start difference. First operand 252 states and 650 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:37:58,763 INFO L93 Difference]: Finished difference Result 252 states and 646 transitions. [2021-03-11 09:37:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 09:37:58,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-03-11 09:37:58,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:37:58,765 INFO L225 Difference]: With dead ends: 252 [2021-03-11 09:37:58,765 INFO L226 Difference]: Without dead ends: 252 [2021-03-11 09:37:58,766 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 09:37:58,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-03-11 09:37:58,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-03-11 09:37:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 248 states have (on average 2.6048387096774195) internal successors, (646), 251 states have internal predecessors, (646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 646 transitions. [2021-03-11 09:37:58,772 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 646 transitions. Word has length 19 [2021-03-11 09:37:58,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:37:58,773 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 646 transitions. [2021-03-11 09:37:58,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,774 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 646 transitions. [2021-03-11 09:37:58,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-03-11 09:37:58,775 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 09:37:58,776 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 09:37:58,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 09:37:58,783 INFO L428 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-11 09:37:58,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 09:37:58,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1612078091, now seen corresponding path program 3 times [2021-03-11 09:37:58,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 09:37:58,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426739062] [2021-03-11 09:37:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 09:37:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 09:37:58,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:37:58,824 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 09:37:58,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 09:37:58,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 09:37:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 09:37:58,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426739062] [2021-03-11 09:37:58,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 09:37:58,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 09:37:58,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936755911] [2021-03-11 09:37:58,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-11 09:37:58,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 09:37:58,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-11 09:37:58,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-11 09:37:58,831 INFO L87 Difference]: Start difference. First operand 252 states and 646 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 09:37:58,883 INFO L93 Difference]: Finished difference Result 230 states and 619 transitions. [2021-03-11 09:37:58,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 09:37:58,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2021-03-11 09:37:58,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 09:37:58,883 INFO L225 Difference]: With dead ends: 230 [2021-03-11 09:37:58,883 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 09:37:58,884 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-03-11 09:37:58,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 09:37:58,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 09:37:58,884 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) [2021-03-11 09:37:58,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 09:37:58,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-03-11 09:37:58,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 09:37:58,885 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 09:37:58,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 09:37:58,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 09:37:58,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 09:37:58,885 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 09:37:58,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 09:37:58 BasicIcfg [2021-03-11 09:37:58,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 09:37:58,889 INFO L168 Benchmark]: Toolchain (without parser) took 4874.32 ms. Allocated memory was 255.9 MB in the beginning and 442.5 MB in the end (delta: 186.6 MB). Free memory was 233.4 MB in the beginning and 416.7 MB in the end (delta: -183.3 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. [2021-03-11 09:37:58,890 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:37:58,890 INFO L168 Benchmark]: CACSL2BoogieTranslator took 541.53 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.8 MB in the beginning and 325.9 MB in the end (delta: -93.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-11 09:37:58,890 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 360.7 MB. Free memory was 325.9 MB in the beginning and 323.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 09:37:58,891 INFO L168 Benchmark]: Boogie Preprocessor took 36.65 ms. Allocated memory is still 360.7 MB. Free memory was 323.8 MB in the beginning and 322.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:37:58,891 INFO L168 Benchmark]: RCFGBuilder took 515.22 ms. Allocated memory is still 360.7 MB. Free memory was 322.4 MB in the beginning and 297.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-03-11 09:37:58,891 INFO L168 Benchmark]: TraceAbstraction took 3718.50 ms. Allocated memory was 360.7 MB in the beginning and 442.5 MB in the end (delta: 81.8 MB). Free memory was 296.5 MB in the beginning and 416.7 MB in the end (delta: -120.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 09:37:58,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 541.53 ms. Allocated memory was 255.9 MB in the beginning and 360.7 MB in the end (delta: 104.9 MB). Free memory was 232.8 MB in the beginning and 325.9 MB in the end (delta: -93.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 53.36 ms. Allocated memory is still 360.7 MB. Free memory was 325.9 MB in the beginning and 323.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 36.65 ms. Allocated memory is still 360.7 MB. Free memory was 323.8 MB in the beginning and 322.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 515.22 ms. Allocated memory is still 360.7 MB. Free memory was 322.4 MB in the beginning and 297.2 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3718.50 ms. Allocated memory was 360.7 MB in the beginning and 442.5 MB in the end (delta: 81.8 MB). Free memory was 296.5 MB in the beginning and 416.7 MB in the end (delta: -120.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2513.8ms, 94 PlacesBefore, 48 PlacesAfterwards, 109 TransitionsBefore, 53 TransitionsAfterwards, 3528 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 10 ChoiceCompositions, 72 TotalNumberOfCompositions, 9278 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4701, positive: 4470, positive conditional: 0, positive unconditional: 4470, negative: 231, negative conditional: 0, negative unconditional: 231, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2138, positive: 2086, positive conditional: 0, positive unconditional: 2086, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2138, positive: 2080, positive conditional: 0, positive unconditional: 2080, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 58, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 52, negative conditional: 0, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 12, positive conditional: 0, positive unconditional: 12, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4701, positive: 2384, positive conditional: 0, positive unconditional: 2384, negative: 179, negative conditional: 0, negative unconditional: 179, unknown: 2138, unknown conditional: 0, unknown unconditional: 2138] , Statistics on independence cache: Total cache size (in pairs): 356, Positive cache size: 319, Positive conditional cache size: 0, Positive unconditional cache size: 319, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37 - 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 88 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3614.1ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 22.2ms, AutomataDifference: 387.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2575.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 362 SDtfs, 220 SDslu, 249 SDs, 0 SdLazy, 161 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 154.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=575occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 100.9ms AutomataMinimizationTime, 6 MinimizatonAttempts, 68 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 13.2ms SsaConstructionTime, 74.8ms SatisfiabilityAnalysisTime, 252.6ms InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...