/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 12:54:44,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 12:54:44,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 12:54:44,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 12:54:44,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 12:54:44,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 12:54:44,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 12:54:44,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 12:54:44,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 12:54:44,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 12:54:44,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 12:54:44,823 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 12:54:44,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 12:54:44,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 12:54:44,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 12:54:44,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 12:54:44,827 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 12:54:44,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 12:54:44,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 12:54:44,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 12:54:44,833 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 12:54:44,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 12:54:44,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 12:54:44,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 12:54:44,839 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 12:54:44,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 12:54:44,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 12:54:44,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 12:54:44,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 12:54:44,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 12:54:44,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 12:54:44,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 12:54:44,843 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 12:54:44,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 12:54:44,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 12:54:44,848 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 12:54:44,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 12:54:44,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 12:54:44,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 12:54:44,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 12:54:44,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 12:54:44,858 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 12:54:44,903 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 12:54:44,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 12:54:44,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 12:54:44,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 12:54:44,905 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 12:54:44,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 12:54:44,905 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 12:54:44,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 12:54:44,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 12:54:44,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 12:54:44,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 12:54:44,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 12:54:44,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 12:54:44,908 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 12:54:44,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 12:54:44,909 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 12:54:44,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 12:54:44,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 12:54:44,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 12:54:44,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 12:54:44,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 12:54:44,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:54:44,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 12:54:44,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 12:54:44,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 12:54:44,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 12:54:44,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 12:54:44,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 12:54:44,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 12:54:44,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 12:54:45,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 12:54:45,259 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 12:54:45,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 12:54:45,264 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 12:54:45,266 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 12:54:45,267 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-09 12:54:45,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f49708c8/e0df6ad7b8a94c999762fef472a03458/FLAG1dcec532c [2020-10-09 12:54:45,830 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 12:54:45,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2020-10-09 12:54:45,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f49708c8/e0df6ad7b8a94c999762fef472a03458/FLAG1dcec532c [2020-10-09 12:54:46,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f49708c8/e0df6ad7b8a94c999762fef472a03458 [2020-10-09 12:54:46,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 12:54:46,196 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 12:54:46,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 12:54:46,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 12:54:46,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 12:54:46,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ffe112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46, skipping insertion in model container [2020-10-09 12:54:46,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 12:54:46,267 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 12:54:46,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:54:46,743 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 12:54:46,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:54:46,864 INFO L208 MainTranslator]: Completed translation [2020-10-09 12:54:46,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46 WrapperNode [2020-10-09 12:54:46,865 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 12:54:46,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 12:54:46,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 12:54:46,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 12:54:46,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 12:54:46,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 12:54:46,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 12:54:46,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 12:54:46,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (1/1) ... [2020-10-09 12:54:46,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 12:54:46,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 12:54:46,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 12:54:46,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 12:54:46,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (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 [2020-10-09 12:54:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 12:54:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 12:54:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 12:54:47,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 12:54:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 12:54:47,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 12:54:47,029 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 12:54:47,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 12:54:47,031 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 12:54:47,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 12:54:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 12:54:47,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 12:54:47,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 12:54:47,035 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 12:54:47,401 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 12:54:47,402 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 12:54:47,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:54:47 BoogieIcfgContainer [2020-10-09 12:54:47,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 12:54:47,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 12:54:47,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 12:54:47,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 12:54:47,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 12:54:46" (1/3) ... [2020-10-09 12:54:47,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7700ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:54:47, skipping insertion in model container [2020-10-09 12:54:47,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:54:46" (2/3) ... [2020-10-09 12:54:47,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7700ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:54:47, skipping insertion in model container [2020-10-09 12:54:47,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:54:47" (3/3) ... [2020-10-09 12:54:47,413 INFO L111 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2020-10-09 12:54:47,425 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 12:54:47,426 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 12:54:47,433 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 12:54:47,434 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 12:54:47,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,464 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,465 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,466 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,467 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,467 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,472 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,472 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,473 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,481 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,482 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,482 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,484 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,485 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,485 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:54:47,500 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-09 12:54:47,520 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 12:54:47,521 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 12:54:47,521 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 12:54:47,521 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 12:54:47,521 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 12:54:47,521 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 12:54:47,522 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 12:54:47,522 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 12:54:47,536 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 12:54:47,539 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-09 12:54:47,542 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-09 12:54:47,544 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-09 12:54:47,588 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-09 12:54:47,589 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 12:54:47,594 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-09 12:54:47,597 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-09 12:54:48,879 INFO L132 LiptonReduction]: Checked pairs total: 2334 [2020-10-09 12:54:48,880 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-09 12:54:48,886 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-09 12:54:48,916 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-09 12:54:48,918 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-09 12:54:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-09 12:54:48,926 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:48,929 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:48,929 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:48,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:48,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1626400852, now seen corresponding path program 1 times [2020-10-09 12:54:48,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:48,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082871745] [2020-10-09 12:54:48,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:49,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082871745] [2020-10-09 12:54:49,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:49,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:54:49,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949706153] [2020-10-09 12:54:49,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-09 12:54:49,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:49,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-09 12:54:49,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 12:54:49,140 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-09 12:54:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:49,176 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-09 12:54:49,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-09 12:54:49,178 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-09 12:54:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:49,196 INFO L225 Difference]: With dead ends: 362 [2020-10-09 12:54:49,196 INFO L226 Difference]: Without dead ends: 298 [2020-10-09 12:54:49,198 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-09 12:54:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-09 12:54:49,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-09 12:54:49,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-09 12:54:49,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-09 12:54:49,271 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-09 12:54:49,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:49,272 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-09 12:54:49,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-09 12:54:49,272 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-09 12:54:49,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-09 12:54:49,274 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:49,274 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:49,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 12:54:49,275 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:49,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1121187596, now seen corresponding path program 1 times [2020-10-09 12:54:49,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:49,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989778880] [2020-10-09 12:54:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:49,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:49,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989778880] [2020-10-09 12:54:49,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:49,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:54:49,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692525982] [2020-10-09 12:54:49,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:54:49,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:49,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:54:49,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:54:49,467 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-09 12:54:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:49,521 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-09 12:54:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:54:49,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-09 12:54:49,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:49,529 INFO L225 Difference]: With dead ends: 330 [2020-10-09 12:54:49,529 INFO L226 Difference]: Without dead ends: 266 [2020-10-09 12:54:49,530 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:54:49,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-09 12:54:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-09 12:54:49,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-09 12:54:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-09 12:54:49,577 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-09 12:54:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:49,578 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-09 12:54:49,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:54:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-09 12:54:49,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-09 12:54:49,582 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:49,583 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:49,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 12:54:49,583 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:49,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:49,584 INFO L82 PathProgramCache]: Analyzing trace with hash -485254353, now seen corresponding path program 1 times [2020-10-09 12:54:49,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:49,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68642250] [2020-10-09 12:54:49,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:49,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:49,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:49,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68642250] [2020-10-09 12:54:49,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:49,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:54:49,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153191912] [2020-10-09 12:54:49,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:54:49,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:49,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:54:49,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:54:49,693 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-09 12:54:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:49,757 INFO L93 Difference]: Finished difference Result 290 states and 786 transitions. [2020-10-09 12:54:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 12:54:49,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-09 12:54:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:49,760 INFO L225 Difference]: With dead ends: 290 [2020-10-09 12:54:49,760 INFO L226 Difference]: Without dead ends: 242 [2020-10-09 12:54:49,761 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-09 12:54:49,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-10-09 12:54:49,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2020-10-09 12:54:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-10-09 12:54:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 670 transitions. [2020-10-09 12:54:49,791 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 670 transitions. Word has length 10 [2020-10-09 12:54:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:49,792 INFO L481 AbstractCegarLoop]: Abstraction has 242 states and 670 transitions. [2020-10-09 12:54:49,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:54:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 670 transitions. [2020-10-09 12:54:49,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:54:49,793 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:49,794 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:49,794 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 12:54:49,794 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:49,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:49,794 INFO L82 PathProgramCache]: Analyzing trace with hash 2136362745, now seen corresponding path program 1 times [2020-10-09 12:54:49,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:49,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310671303] [2020-10-09 12:54:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:49,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310671303] [2020-10-09 12:54:49,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:49,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:54:49,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268972944] [2020-10-09 12:54:49,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:54:49,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:49,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:54:49,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:54:49,862 INFO L87 Difference]: Start difference. First operand 242 states and 670 transitions. Second operand 5 states. [2020-10-09 12:54:49,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:49,902 INFO L93 Difference]: Finished difference Result 302 states and 803 transitions. [2020-10-09 12:54:49,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:54:49,903 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-09 12:54:49,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:49,904 INFO L225 Difference]: With dead ends: 302 [2020-10-09 12:54:49,904 INFO L226 Difference]: Without dead ends: 146 [2020-10-09 12:54:49,905 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-09 12:54:49,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-09 12:54:49,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-09 12:54:49,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-09 12:54:49,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 358 transitions. [2020-10-09 12:54:49,911 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 358 transitions. Word has length 11 [2020-10-09 12:54:49,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:49,911 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 358 transitions. [2020-10-09 12:54:49,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:54:49,911 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 358 transitions. [2020-10-09 12:54:49,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-09 12:54:49,913 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:49,913 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:49,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 12:54:49,913 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:49,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:49,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1939864517, now seen corresponding path program 1 times [2020-10-09 12:54:49,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:49,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271392278] [2020-10-09 12:54:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:49,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271392278] [2020-10-09 12:54:49,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:49,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-09 12:54:49,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863172673] [2020-10-09 12:54:49,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 12:54:49,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:49,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 12:54:49,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:54:49,981 INFO L87 Difference]: Start difference. First operand 146 states and 358 transitions. Second operand 6 states. [2020-10-09 12:54:50,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:50,077 INFO L93 Difference]: Finished difference Result 194 states and 465 transitions. [2020-10-09 12:54:50,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-09 12:54:50,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-10-09 12:54:50,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:50,082 INFO L225 Difference]: With dead ends: 194 [2020-10-09 12:54:50,082 INFO L226 Difference]: Without dead ends: 116 [2020-10-09 12:54:50,082 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-09 12:54:50,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-09 12:54:50,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-09 12:54:50,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-09 12:54:50,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 264 transitions. [2020-10-09 12:54:50,087 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 264 transitions. Word has length 13 [2020-10-09 12:54:50,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:50,088 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 264 transitions. [2020-10-09 12:54:50,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 12:54:50,088 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 264 transitions. [2020-10-09 12:54:50,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:54:50,093 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:50,093 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:50,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 12:54:50,093 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:50,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:50,094 INFO L82 PathProgramCache]: Analyzing trace with hash -471367565, now seen corresponding path program 1 times [2020-10-09 12:54:50,094 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:50,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965553496] [2020-10-09 12:54:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:50,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965553496] [2020-10-09 12:54:50,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:50,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:54:50,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263141605] [2020-10-09 12:54:50,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:54:50,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:50,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:54:50,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:54:50,185 INFO L87 Difference]: Start difference. First operand 116 states and 264 transitions. Second operand 5 states. [2020-10-09 12:54:50,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:50,239 INFO L93 Difference]: Finished difference Result 131 states and 289 transitions. [2020-10-09 12:54:50,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:54:50,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-09 12:54:50,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:50,241 INFO L225 Difference]: With dead ends: 131 [2020-10-09 12:54:50,241 INFO L226 Difference]: Without dead ends: 98 [2020-10-09 12:54:50,241 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-09 12:54:50,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-09 12:54:50,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-09 12:54:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-09 12:54:50,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-10-09 12:54:50,245 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 14 [2020-10-09 12:54:50,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:50,245 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-10-09 12:54:50,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:54:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-10-09 12:54:50,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:54:50,246 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:50,246 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:50,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 12:54:50,247 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:50,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:50,247 INFO L82 PathProgramCache]: Analyzing trace with hash -484565939, now seen corresponding path program 1 times [2020-10-09 12:54:50,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:50,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633002829] [2020-10-09 12:54:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:50,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:50,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633002829] [2020-10-09 12:54:50,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:50,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:54:50,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974190582] [2020-10-09 12:54:50,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:54:50,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:50,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:54:50,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:54:50,288 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 4 states. [2020-10-09 12:54:50,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:50,320 INFO L93 Difference]: Finished difference Result 109 states and 223 transitions. [2020-10-09 12:54:50,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:54:50,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-09 12:54:50,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:50,321 INFO L225 Difference]: With dead ends: 109 [2020-10-09 12:54:50,322 INFO L226 Difference]: Without dead ends: 87 [2020-10-09 12:54:50,322 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:54:50,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-09 12:54:50,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-09 12:54:50,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-09 12:54:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 180 transitions. [2020-10-09 12:54:50,326 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 180 transitions. Word has length 14 [2020-10-09 12:54:50,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:50,326 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 180 transitions. [2020-10-09 12:54:50,326 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:54:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 180 transitions. [2020-10-09 12:54:50,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-09 12:54:50,327 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:50,327 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:50,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-09 12:54:50,327 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:50,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1643108637, now seen corresponding path program 1 times [2020-10-09 12:54:50,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:50,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28128121] [2020-10-09 12:54:50,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:50,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28128121] [2020-10-09 12:54:50,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:50,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-09 12:54:50,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066900410] [2020-10-09 12:54:50,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:54:50,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:50,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:54:50,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:54:50,393 INFO L87 Difference]: Start difference. First operand 87 states and 180 transitions. Second operand 5 states. [2020-10-09 12:54:50,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:50,431 INFO L93 Difference]: Finished difference Result 83 states and 155 transitions. [2020-10-09 12:54:50,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:54:50,431 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-09 12:54:50,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:50,432 INFO L225 Difference]: With dead ends: 83 [2020-10-09 12:54:50,432 INFO L226 Difference]: Without dead ends: 68 [2020-10-09 12:54:50,433 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:54:50,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-09 12:54:50,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-09 12:54:50,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-09 12:54:50,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 125 transitions. [2020-10-09 12:54:50,435 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 125 transitions. Word has length 15 [2020-10-09 12:54:50,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:50,435 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 125 transitions. [2020-10-09 12:54:50,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:54:50,436 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 125 transitions. [2020-10-09 12:54:50,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-09 12:54:50,436 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:50,436 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:50,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-09 12:54:50,438 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:50,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:50,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1105925332, now seen corresponding path program 1 times [2020-10-09 12:54:50,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:50,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998471779] [2020-10-09 12:54:50,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:50,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998471779] [2020-10-09 12:54:50,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:50,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-09 12:54:50,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508271038] [2020-10-09 12:54:50,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 12:54:50,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:50,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 12:54:50,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:54:50,488 INFO L87 Difference]: Start difference. First operand 68 states and 125 transitions. Second operand 6 states. [2020-10-09 12:54:50,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:50,529 INFO L93 Difference]: Finished difference Result 61 states and 109 transitions. [2020-10-09 12:54:50,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 12:54:50,529 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-09 12:54:50,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:50,530 INFO L225 Difference]: With dead ends: 61 [2020-10-09 12:54:50,530 INFO L226 Difference]: Without dead ends: 55 [2020-10-09 12:54:50,530 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-09 12:54:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-09 12:54:50,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-09 12:54:50,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-09 12:54:50,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions. [2020-10-09 12:54:50,532 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 16 [2020-10-09 12:54:50,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:50,532 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions. [2020-10-09 12:54:50,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 12:54:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions. [2020-10-09 12:54:50,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-09 12:54:50,533 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:54:50,533 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:54:50,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-09 12:54:50,533 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:54:50,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:54:50,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1123595488, now seen corresponding path program 1 times [2020-10-09 12:54:50,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:54:50,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855121417] [2020-10-09 12:54:50,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:54:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:54:50,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:54:50,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855121417] [2020-10-09 12:54:50,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:54:50,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:54:50,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276711032] [2020-10-09 12:54:50,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:54:50,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:54:50,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:54:50,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:54:50,576 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states. [2020-10-09 12:54:50,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:54:50,586 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions. [2020-10-09 12:54:50,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:54:50,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-09 12:54:50,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:54:50,587 INFO L225 Difference]: With dead ends: 54 [2020-10-09 12:54:50,587 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 12:54:50,588 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:54:50,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 12:54:50,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 12:54:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 12:54:50,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 12:54:50,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-09 12:54:50,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:54:50,589 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 12:54:50,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:54:50,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 12:54:50,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 12:54:50,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-09 12:54:50,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 12:54:50 BasicIcfg [2020-10-09 12:54:50,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 12:54:50,596 INFO L168 Benchmark]: Toolchain (without parser) took 4398.85 ms. Allocated memory was 250.1 MB in the beginning and 370.1 MB in the end (delta: 120.1 MB). Free memory was 206.1 MB in the beginning and 222.5 MB in the end (delta: -16.5 MB). Peak memory consumption was 103.6 MB. Max. memory is 14.2 GB. [2020-10-09 12:54:50,596 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:54:50,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 667.94 ms. Allocated memory was 250.1 MB in the beginning and 312.0 MB in the end (delta: 61.9 MB). Free memory was 206.1 MB in the beginning and 265.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:54:50,598 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.30 ms. Allocated memory is still 312.0 MB. Free memory was 265.1 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 12:54:50,599 INFO L168 Benchmark]: Boogie Preprocessor took 32.32 ms. Allocated memory is still 312.0 MB. Free memory is still 262.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 12:54:50,599 INFO L168 Benchmark]: RCFGBuilder took 454.87 ms. Allocated memory is still 312.0 MB. Free memory was 262.6 MB in the beginning and 238.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-09 12:54:50,600 INFO L168 Benchmark]: TraceAbstraction took 3187.33 ms. Allocated memory was 312.0 MB in the beginning and 370.1 MB in the end (delta: 58.2 MB). Free memory was 238.3 MB in the beginning and 226.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 70.3 MB. Max. memory is 14.2 GB. [2020-10-09 12:54:50,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 667.94 ms. Allocated memory was 250.1 MB in the beginning and 312.0 MB in the end (delta: 61.9 MB). Free memory was 206.1 MB in the beginning and 265.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 30.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.30 ms. Allocated memory is still 312.0 MB. Free memory was 265.1 MB in the beginning and 262.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 32.32 ms. Allocated memory is still 312.0 MB. Free memory is still 262.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 454.87 ms. Allocated memory is still 312.0 MB. Free memory was 262.6 MB in the beginning and 238.3 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3187.33 ms. Allocated memory was 312.0 MB in the beginning and 370.1 MB in the end (delta: 58.2 MB). Free memory was 238.3 MB in the beginning and 226.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 70.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 833 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 87 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 78 PlacesBefore, 32 PlacesAfterwards, 70 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 56 TotalNumberOfCompositions, 2334 MoverChecksTotal - PositiveResult [Line: 7]: 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 194 SDtfs, 233 SDslu, 333 SDs, 0 SdLazy, 178 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 4582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...