/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:05:42,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:05:42,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:05:42,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:05:42,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:05:42,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:05:42,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:05:42,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:05:42,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:05:42,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:05:42,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:05:42,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:05:42,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:05:42,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:05:42,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:05:42,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:05:42,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:05:42,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:05:42,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:05:42,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:05:42,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:05:42,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:05:42,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:05:42,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:05:42,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:05:42,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:05:42,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:05:42,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:05:42,789 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:05:42,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:05:42,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:05:42,795 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:05:42,796 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:05:42,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:05:42,798 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:05:42,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:05:42,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:05:42,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:05:42,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:05:42,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:05:42,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:05:42,805 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:05:42,837 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:05:42,837 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:05:42,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:05:42,840 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:05:42,840 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:05:42,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:05:42,841 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:05:42,841 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:05:42,841 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:05:42,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:05:42,842 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:05:42,842 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:05:42,842 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:05:42,842 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:05:42,843 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:05:42,843 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:05:42,843 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:05:42,844 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:05:42,844 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:05:42,844 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:05:42,844 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:05:42,845 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:05:42,845 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:05:42,845 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:05:42,845 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:05:42,846 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:05:42,846 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:05:42,846 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:05:42,846 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:05:42,847 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:05:42,847 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:05:43,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:05:43,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:05:43,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:05:43,340 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:05:43,341 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:05:43,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2020-11-09 17:05:43,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f710af1/a590156567484b86897abcd52a8bba06/FLAG114af160a [2020-11-09 17:05:44,171 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:05:44,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2020-11-09 17:05:44,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f710af1/a590156567484b86897abcd52a8bba06/FLAG114af160a [2020-11-09 17:05:44,457 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53f710af1/a590156567484b86897abcd52a8bba06 [2020-11-09 17:05:44,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:05:44,468 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:05:44,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:05:44,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:05:44,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:05:44,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:05:44" (1/1) ... [2020-11-09 17:05:44,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7e0418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:44, skipping insertion in model container [2020-11-09 17:05:44,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:05:44" (1/1) ... [2020-11-09 17:05:44,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:05:44,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:05:44,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:05:44,952 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:05:45,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:05:45,136 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:05:45,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45 WrapperNode [2020-11-09 17:05:45,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:05:45,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:05:45,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:05:45,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:05:45,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:05:45,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:05:45,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:05:45,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:05:45,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... [2020-11-09 17:05:45,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:05:45,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:05:45,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:05:45,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:05:45,220 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:05:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:05:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:05:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:05:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:05:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:05:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:05:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:05:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:05:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:05:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:05:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:05:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:05:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:05:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:05:45,322 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:05:45,829 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:05:45,830 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:05:45,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:05:45 BoogieIcfgContainer [2020-11-09 17:05:45,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:05:45,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:05:45,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:05:45,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:05:45,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:05:44" (1/3) ... [2020-11-09 17:05:45,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539b842e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:05:45, skipping insertion in model container [2020-11-09 17:05:45,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:05:45" (2/3) ... [2020-11-09 17:05:45,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539b842e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:05:45, skipping insertion in model container [2020-11-09 17:05:45,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:05:45" (3/3) ... [2020-11-09 17:05:45,842 INFO L111 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2020-11-09 17:05:45,858 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:05:45,859 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:05:45,863 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:05:45,863 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:05:45,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,896 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,896 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,897 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,897 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,898 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,899 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,899 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,899 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,899 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,900 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,900 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,901 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,902 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,902 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,902 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,902 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,902 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,903 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,903 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,903 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,904 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,907 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,907 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,908 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,931 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,931 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,932 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,941 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,941 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:05:45,949 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:05:45,961 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:05:45,984 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:05:45,984 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:05:45,984 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:05:45,984 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:05:45,984 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:05:45,984 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:05:45,984 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:05:45,985 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:05:45,996 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:05:45,997 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:05:46,000 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:05:46,001 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 17:05:46,049 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 17:05:46,049 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:05:46,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-09 17:05:46,057 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 17:05:48,488 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-11-09 17:05:48,623 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-11-09 17:05:49,221 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 26 [2020-11-09 17:05:49,578 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-11-09 17:05:49,780 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-11-09 17:05:49,931 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:05:50,036 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:05:50,147 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 17:05:50,486 WARN L194 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 17:05:50,610 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 17:05:50,874 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2020-11-09 17:05:50,978 INFO L131 LiptonReduction]: Checked pairs total: 2774 [2020-11-09 17:05:50,978 INFO L133 LiptonReduction]: Total number of compositions: 73 [2020-11-09 17:05:50,988 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-09 17:05:51,042 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-11-09 17:05:51,045 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-11-09 17:05:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:05:51,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:51,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:51,056 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:51,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:51,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1189021961, now seen corresponding path program 1 times [2020-11-09 17:05:51,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:51,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154664799] [2020-11-09 17:05:51,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:51,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154664799] [2020-11-09 17:05:51,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:51,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:05:51,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [30386422] [2020-11-09 17:05:51,461 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:51,466 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:51,482 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:05:51,486 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:51,492 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:51,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:05:51,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:51,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:05:51,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:51,522 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-11-09 17:05:51,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:51,590 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-11-09 17:05:51,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:05:51,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 17:05:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:51,606 INFO L225 Difference]: With dead ends: 282 [2020-11-09 17:05:51,606 INFO L226 Difference]: Without dead ends: 218 [2020-11-09 17:05:51,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:51,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-11-09 17:05:51,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-11-09 17:05:51,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-09 17:05:51,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-11-09 17:05:51,678 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-11-09 17:05:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:51,679 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-11-09 17:05:51,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:05:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-11-09 17:05:51,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:05:51,681 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:51,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:51,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:05:51,681 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:51,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:51,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1771488223, now seen corresponding path program 1 times [2020-11-09 17:05:51,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:51,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47145871] [2020-11-09 17:05:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:51,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47145871] [2020-11-09 17:05:51,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:51,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:05:51,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1926756009] [2020-11-09 17:05:51,749 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:51,750 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:51,753 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 15 transitions. [2020-11-09 17:05:51,753 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:51,774 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:51,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:05:51,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:51,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:05:51,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:51,777 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 3 states. [2020-11-09 17:05:51,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:51,803 INFO L93 Difference]: Finished difference Result 202 states and 544 transitions. [2020-11-09 17:05:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:05:51,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 17:05:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:51,809 INFO L225 Difference]: With dead ends: 202 [2020-11-09 17:05:51,809 INFO L226 Difference]: Without dead ends: 202 [2020-11-09 17:05:51,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:51,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-09 17:05:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-09 17:05:51,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-09 17:05:51,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 544 transitions. [2020-11-09 17:05:51,839 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 544 transitions. Word has length 9 [2020-11-09 17:05:51,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:51,839 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 544 transitions. [2020-11-09 17:05:51,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:05:51,839 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 544 transitions. [2020-11-09 17:05:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:05:51,846 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:51,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:51,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:05:51,847 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:51,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:51,847 INFO L82 PathProgramCache]: Analyzing trace with hash -918442191, now seen corresponding path program 1 times [2020-11-09 17:05:51,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:51,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728009221] [2020-11-09 17:05:51,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:51,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728009221] [2020-11-09 17:05:51,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:51,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:05:51,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1351169529] [2020-11-09 17:05:51,957 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:51,958 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:51,962 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 22 transitions. [2020-11-09 17:05:51,962 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:52,022 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:52,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:05:52,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:52,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:05:52,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:52,024 INFO L87 Difference]: Start difference. First operand 202 states and 544 transitions. Second operand 3 states. [2020-11-09 17:05:52,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:52,032 INFO L93 Difference]: Finished difference Result 194 states and 518 transitions. [2020-11-09 17:05:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:05:52,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 17:05:52,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:52,035 INFO L225 Difference]: With dead ends: 194 [2020-11-09 17:05:52,035 INFO L226 Difference]: Without dead ends: 194 [2020-11-09 17:05:52,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:52,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-11-09 17:05:52,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-11-09 17:05:52,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-11-09 17:05:52,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 518 transitions. [2020-11-09 17:05:52,053 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 518 transitions. Word has length 10 [2020-11-09 17:05:52,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:52,053 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 518 transitions. [2020-11-09 17:05:52,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:05:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 518 transitions. [2020-11-09 17:05:52,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:05:52,055 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:52,055 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:52,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:05:52,056 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:52,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:52,056 INFO L82 PathProgramCache]: Analyzing trace with hash 1592271914, now seen corresponding path program 1 times [2020-11-09 17:05:52,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:52,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316726387] [2020-11-09 17:05:52,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:52,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316726387] [2020-11-09 17:05:52,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:52,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:05:52,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [720414201] [2020-11-09 17:05:52,107 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:52,109 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:52,111 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 21 transitions. [2020-11-09 17:05:52,111 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:52,137 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:52,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:05:52,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:52,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:05:52,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:05:52,139 INFO L87 Difference]: Start difference. First operand 194 states and 518 transitions. Second operand 4 states. [2020-11-09 17:05:52,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:52,192 INFO L93 Difference]: Finished difference Result 266 states and 704 transitions. [2020-11-09 17:05:52,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:05:52,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 17:05:52,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:52,195 INFO L225 Difference]: With dead ends: 266 [2020-11-09 17:05:52,195 INFO L226 Difference]: Without dead ends: 194 [2020-11-09 17:05:52,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:05:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2020-11-09 17:05:52,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2020-11-09 17:05:52,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-11-09 17:05:52,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 510 transitions. [2020-11-09 17:05:52,212 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 510 transitions. Word has length 11 [2020-11-09 17:05:52,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:52,212 INFO L481 AbstractCegarLoop]: Abstraction has 194 states and 510 transitions. [2020-11-09 17:05:52,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:05:52,212 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 510 transitions. [2020-11-09 17:05:52,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 17:05:52,214 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:52,214 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:52,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:05:52,215 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:52,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:52,215 INFO L82 PathProgramCache]: Analyzing trace with hash 1593061484, now seen corresponding path program 2 times [2020-11-09 17:05:52,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:52,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985136830] [2020-11-09 17:05:52,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:52,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985136830] [2020-11-09 17:05:52,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:52,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:05:52,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1703782224] [2020-11-09 17:05:52,275 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:52,277 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:52,279 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 17:05:52,279 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:52,336 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:52,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:05:52,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:52,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:05:52,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:52,338 INFO L87 Difference]: Start difference. First operand 194 states and 510 transitions. Second operand 3 states. [2020-11-09 17:05:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:52,354 INFO L93 Difference]: Finished difference Result 192 states and 503 transitions. [2020-11-09 17:05:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:05:52,354 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-11-09 17:05:52,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:52,356 INFO L225 Difference]: With dead ends: 192 [2020-11-09 17:05:52,356 INFO L226 Difference]: Without dead ends: 192 [2020-11-09 17:05:52,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-11-09 17:05:52,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-11-09 17:05:52,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-11-09 17:05:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 503 transitions. [2020-11-09 17:05:52,384 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 503 transitions. Word has length 11 [2020-11-09 17:05:52,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:52,384 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 503 transitions. [2020-11-09 17:05:52,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:05:52,384 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 503 transitions. [2020-11-09 17:05:52,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:05:52,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:52,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:52,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:05:52,386 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:52,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:52,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2140263678, now seen corresponding path program 1 times [2020-11-09 17:05:52,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:52,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112947265] [2020-11-09 17:05:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:52,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112947265] [2020-11-09 17:05:52,419 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:52,419 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:05:52,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [217643954] [2020-11-09 17:05:52,420 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:52,421 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:52,424 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-11-09 17:05:52,424 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:52,428 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:52,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:05:52,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:52,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:05:52,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:52,430 INFO L87 Difference]: Start difference. First operand 192 states and 503 transitions. Second operand 3 states. [2020-11-09 17:05:52,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:52,441 INFO L93 Difference]: Finished difference Result 248 states and 627 transitions. [2020-11-09 17:05:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:05:52,442 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 17:05:52,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:52,444 INFO L225 Difference]: With dead ends: 248 [2020-11-09 17:05:52,444 INFO L226 Difference]: Without dead ends: 200 [2020-11-09 17:05:52,445 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:05:52,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-11-09 17:05:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 188. [2020-11-09 17:05:52,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-11-09 17:05:52,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 467 transitions. [2020-11-09 17:05:52,453 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 467 transitions. Word has length 12 [2020-11-09 17:05:52,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:52,453 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 467 transitions. [2020-11-09 17:05:52,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:05:52,453 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 467 transitions. [2020-11-09 17:05:52,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 17:05:52,454 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:52,455 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:52,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:05:52,455 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:52,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:52,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2140264484, now seen corresponding path program 1 times [2020-11-09 17:05:52,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:52,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252692226] [2020-11-09 17:05:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:52,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:52,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252692226] [2020-11-09 17:05:52,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:52,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:05:52,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [260798150] [2020-11-09 17:05:52,561 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:52,567 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:52,573 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 63 transitions. [2020-11-09 17:05:52,574 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:52,605 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:52,677 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:52,708 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:52,747 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:52,797 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:52,853 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:52,912 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:52,958 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [4470#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 17:05:52,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:05:52,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:52,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:05:52,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:05:52,960 INFO L87 Difference]: Start difference. First operand 188 states and 467 transitions. Second operand 5 states. [2020-11-09 17:05:53,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:53,021 INFO L93 Difference]: Finished difference Result 186 states and 435 transitions. [2020-11-09 17:05:53,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:05:53,021 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 17:05:53,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:53,023 INFO L225 Difference]: With dead ends: 186 [2020-11-09 17:05:53,023 INFO L226 Difference]: Without dead ends: 122 [2020-11-09 17:05:53,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:05:53,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-11-09 17:05:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-11-09 17:05:53,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-11-09 17:05:53,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 253 transitions. [2020-11-09 17:05:53,028 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 253 transitions. Word has length 12 [2020-11-09 17:05:53,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:53,029 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 253 transitions. [2020-11-09 17:05:53,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:05:53,029 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 253 transitions. [2020-11-09 17:05:53,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-09 17:05:53,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:53,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:53,030 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 17:05:53,030 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:53,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:53,031 INFO L82 PathProgramCache]: Analyzing trace with hash 2125100997, now seen corresponding path program 1 times [2020-11-09 17:05:53,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:53,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258508571] [2020-11-09 17:05:53,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:53,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:53,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258508571] [2020-11-09 17:05:53,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:53,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:05:53,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [600178030] [2020-11-09 17:05:53,107 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:53,109 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:53,115 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 75 transitions. [2020-11-09 17:05:53,115 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:53,125 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:05:53,186 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 4 new interpolants: [4912#(not (= ~__unbuffered_cnt~0 2)), 4913#(not (= ~__unbuffered_cnt~0 1)), 4914#(<= ~__unbuffered_cnt~0 0), 4911#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 17:05:53,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-09 17:05:53,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:53,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-09 17:05:53,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-11-09 17:05:53,188 INFO L87 Difference]: Start difference. First operand 122 states and 253 transitions. Second operand 10 states. [2020-11-09 17:05:53,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:53,244 INFO L93 Difference]: Finished difference Result 118 states and 243 transitions. [2020-11-09 17:05:53,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:05:53,245 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-11-09 17:05:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:53,246 INFO L225 Difference]: With dead ends: 118 [2020-11-09 17:05:53,246 INFO L226 Difference]: Without dead ends: 54 [2020-11-09 17:05:53,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2020-11-09 17:05:53,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-09 17:05:53,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-11-09 17:05:53,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-11-09 17:05:53,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 97 transitions. [2020-11-09 17:05:53,249 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 97 transitions. Word has length 15 [2020-11-09 17:05:53,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:53,249 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 97 transitions. [2020-11-09 17:05:53,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-09 17:05:53,249 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 97 transitions. [2020-11-09 17:05:53,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:05:53,250 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:53,250 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:53,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 17:05:53,250 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:53,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:53,251 INFO L82 PathProgramCache]: Analyzing trace with hash 2097589764, now seen corresponding path program 1 times [2020-11-09 17:05:53,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:53,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956958936] [2020-11-09 17:05:53,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:53,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:53,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956958936] [2020-11-09 17:05:53,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:53,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:05:53,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [112290939] [2020-11-09 17:05:53,287 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:53,289 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:53,298 INFO L252 McrAutomatonBuilder]: Finished intersection with 54 states and 97 transitions. [2020-11-09 17:05:53,298 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:53,349 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:53,349 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:05:53,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:53,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:05:53,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:05:53,350 INFO L87 Difference]: Start difference. First operand 54 states and 97 transitions. Second operand 4 states. [2020-11-09 17:05:53,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:53,367 INFO L93 Difference]: Finished difference Result 63 states and 110 transitions. [2020-11-09 17:05:53,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:05:53,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:05:53,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:53,369 INFO L225 Difference]: With dead ends: 63 [2020-11-09 17:05:53,369 INFO L226 Difference]: Without dead ends: 35 [2020-11-09 17:05:53,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:05:53,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-09 17:05:53,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-09 17:05:53,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-09 17:05:53,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 56 transitions. [2020-11-09 17:05:53,371 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 56 transitions. Word has length 17 [2020-11-09 17:05:53,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:53,372 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 56 transitions. [2020-11-09 17:05:53,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:05:53,372 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 56 transitions. [2020-11-09 17:05:53,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:05:53,372 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:53,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:53,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 17:05:53,373 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:53,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:53,373 INFO L82 PathProgramCache]: Analyzing trace with hash -281731452, now seen corresponding path program 2 times [2020-11-09 17:05:53,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:53,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902156180] [2020-11-09 17:05:53,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:53,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:53,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902156180] [2020-11-09 17:05:53,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:53,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:05:53,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [172974289] [2020-11-09 17:05:53,450 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:53,452 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:53,460 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 49 transitions. [2020-11-09 17:05:53,460 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:53,477 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:53,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:05:53,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:53,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:05:53,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:05:53,479 INFO L87 Difference]: Start difference. First operand 35 states and 56 transitions. Second operand 4 states. [2020-11-09 17:05:53,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:53,498 INFO L93 Difference]: Finished difference Result 48 states and 77 transitions. [2020-11-09 17:05:53,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 17:05:53,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:05:53,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:53,499 INFO L225 Difference]: With dead ends: 48 [2020-11-09 17:05:53,499 INFO L226 Difference]: Without dead ends: 30 [2020-11-09 17:05:53,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:05:53,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-09 17:05:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-09 17:05:53,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-09 17:05:53,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 44 transitions. [2020-11-09 17:05:53,501 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 44 transitions. Word has length 17 [2020-11-09 17:05:53,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:53,502 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 44 transitions. [2020-11-09 17:05:53,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:05:53,502 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-09 17:05:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-09 17:05:53,502 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:05:53,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:05:53,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-09 17:05:53,503 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:05:53,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:05:53,504 INFO L82 PathProgramCache]: Analyzing trace with hash -766877882, now seen corresponding path program 3 times [2020-11-09 17:05:53,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:05:53,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016097772] [2020-11-09 17:05:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:05:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:05:53,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:05:53,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016097772] [2020-11-09 17:05:53,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:05:53,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:05:53,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1417805829] [2020-11-09 17:05:53,552 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:05:53,554 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:05:53,561 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 53 transitions. [2020-11-09 17:05:53,561 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:05:53,573 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:05:53,574 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:05:53,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:05:53,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:05:53,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:05:53,575 INFO L87 Difference]: Start difference. First operand 30 states and 44 transitions. Second operand 4 states. [2020-11-09 17:05:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:05:53,590 INFO L93 Difference]: Finished difference Result 29 states and 43 transitions. [2020-11-09 17:05:53,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:05:53,590 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-09 17:05:53,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:05:53,591 INFO L225 Difference]: With dead ends: 29 [2020-11-09 17:05:53,591 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:05:53,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:05:53,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:05:53,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:05:53,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:05:53,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:05:53,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-09 17:05:53,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:05:53,594 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:05:53,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:05:53,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:05:53,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:05:53,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-09 17:05:53,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:05:53 BasicIcfg [2020-11-09 17:05:53,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:05:53,604 INFO L168 Benchmark]: Toolchain (without parser) took 9138.95 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 140.8 MB in the beginning and 135.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 40.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:53,608 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 125.8 MB. Free memory is still 104.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:05:53,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.14 ms. Allocated memory is still 165.7 MB. Free memory was 140.1 MB in the beginning and 136.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:53,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.13 ms. Allocated memory is still 165.7 MB. Free memory was 136.7 MB in the beginning and 134.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:53,613 INFO L168 Benchmark]: Boogie Preprocessor took 30.63 ms. Allocated memory is still 165.7 MB. Free memory was 134.8 MB in the beginning and 133.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:53,613 INFO L168 Benchmark]: RCFGBuilder took 613.46 ms. Allocated memory is still 165.7 MB. Free memory was 133.1 MB in the beginning and 111.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:53,614 INFO L168 Benchmark]: TraceAbstraction took 7765.81 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 111.1 MB in the beginning and 135.3 MB in the end (delta: -24.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. [2020-11-09 17:05:53,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 125.8 MB. Free memory is still 104.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 667.14 ms. Allocated memory is still 165.7 MB. Free memory was 140.1 MB in the beginning and 136.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 49.13 ms. Allocated memory is still 165.7 MB. Free memory was 136.7 MB in the beginning and 134.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.63 ms. Allocated memory is still 165.7 MB. Free memory was 134.8 MB in the beginning and 133.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 613.46 ms. Allocated memory is still 165.7 MB. Free memory was 133.1 MB in the beginning and 111.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7765.81 ms. Allocated memory was 165.7 MB in the beginning and 199.2 MB in the end (delta: 33.6 MB). Free memory was 111.1 MB in the beginning and 135.3 MB in the end (delta: -24.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 780 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.9s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2774 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.6s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 223 SDtfs, 144 SDslu, 241 SDs, 0 SdLazy, 129 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 86 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 139 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 128 ConstructedInterpolants, 0 QuantifiedInterpolants, 4100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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...