/usr/bin/java -Xmx8000000000 -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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix053_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 00:47:12,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 00:47:12,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 00:47:12,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 00:47:12,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 00:47:12,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 00:47:12,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 00:47:12,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 00:47:12,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 00:47:12,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 00:47:12,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 00:47:12,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 00:47:12,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 00:47:12,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 00:47:12,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 00:47:12,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 00:47:12,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 00:47:12,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 00:47:12,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 00:47:12,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 00:47:12,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 00:47:12,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 00:47:12,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 00:47:12,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 00:47:12,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-06 00:47:12,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 00:47:12,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 00:47:12,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 00:47:12,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 00:47:12,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 00:47:12,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 00:47:12,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 00:47:12,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 00:47:12,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 00:47:12,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 00:47:12,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 00:47:12,905 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-WP.epf [2020-10-06 00:47:12,945 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 00:47:12,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 00:47:12,947 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 00:47:12,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 00:47:12,948 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 00:47:12,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 00:47:12,948 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 00:47:12,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 00:47:12,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 00:47:12,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 00:47:12,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 00:47:12,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 00:47:12,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 00:47:12,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 00:47:12,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 00:47:12,951 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 00:47:12,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 00:47:12,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 00:47:12,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 00:47:12,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 00:47:12,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 00:47:12,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 00:47:12,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 00:47:12,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 00:47:12,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 00:47:12,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 00:47:12,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 00:47:12,954 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 00:47:12,954 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 00:47:12,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 00:47:12,954 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 00:47:13,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 00:47:13,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 00:47:13,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 00:47:13,250 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 00:47:13,252 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 00:47:13,253 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix053_power.opt.i [2020-10-06 00:47:13,309 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c68daed/f3eb5ee3b56842088a44010b533589d6/FLAG40fbd5609 [2020-10-06 00:47:13,912 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 00:47:13,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053_power.opt.i [2020-10-06 00:47:13,938 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c68daed/f3eb5ee3b56842088a44010b533589d6/FLAG40fbd5609 [2020-10-06 00:47:14,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6c68daed/f3eb5ee3b56842088a44010b533589d6 [2020-10-06 00:47:14,175 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 00:47:14,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 00:47:14,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 00:47:14,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 00:47:14,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 00:47:14,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:14,186 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56b95ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14, skipping insertion in model container [2020-10-06 00:47:14,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:14,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 00:47:14,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 00:47:14,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:47:14,824 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 00:47:14,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 00:47:14,962 INFO L208 MainTranslator]: Completed translation [2020-10-06 00:47:14,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14 WrapperNode [2020-10-06 00:47:14,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 00:47:14,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 00:47:14,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 00:47:14,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 00:47:14,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:14,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 00:47:15,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 00:47:15,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 00:47:15,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 00:47:15,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (1/1) ... [2020-10-06 00:47:15,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 00:47:15,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 00:47:15,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 00:47:15,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 00:47:15,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (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 [2020-10-06 00:47:15,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 00:47:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 00:47:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 00:47:15,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 00:47:15,157 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 00:47:15,157 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 00:47:15,158 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 00:47:15,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 00:47:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 00:47:15,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 00:47:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-06 00:47:15,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-06 00:47:15,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 00:47:15,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 00:47:15,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 00:47:15,162 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 00:47:16,901 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 00:47:16,902 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 00:47:16,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:47:16 BoogieIcfgContainer [2020-10-06 00:47:16,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 00:47:16,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 00:47:16,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 00:47:16,909 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 00:47:16,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 12:47:14" (1/3) ... [2020-10-06 00:47:16,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b956c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:47:16, skipping insertion in model container [2020-10-06 00:47:16,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 12:47:14" (2/3) ... [2020-10-06 00:47:16,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@489b956c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 12:47:16, skipping insertion in model container [2020-10-06 00:47:16,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 12:47:16" (3/3) ... [2020-10-06 00:47:16,913 INFO L109 eAbstractionObserver]: Analyzing ICFG mix053_power.opt.i [2020-10-06 00:47:16,924 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 00:47:16,924 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 00:47:16,932 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 00:47:16,933 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 00:47:16,966 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,967 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,967 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,968 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,970 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,970 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,971 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,973 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,974 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,975 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,976 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,977 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,979 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,979 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,980 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,980 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,980 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,981 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,981 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,981 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,981 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,982 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,982 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,982 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,982 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,982 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,983 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,984 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,988 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,989 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,990 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,993 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,996 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,996 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,996 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,996 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,997 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,997 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,997 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,997 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,998 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,998 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,998 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:16,998 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,000 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,001 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,006 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,007 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,007 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,007 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 00:47:17,022 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-06 00:47:17,044 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 00:47:17,044 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 00:47:17,045 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 00:47:17,045 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 00:47:17,045 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 00:47:17,045 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 00:47:17,045 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 00:47:17,045 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 00:47:17,062 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 107 transitions, 234 flow [2020-10-06 00:47:17,064 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 234 flow [2020-10-06 00:47:17,115 INFO L129 PetriNetUnfolder]: 2/103 cut-off events. [2020-10-06 00:47:17,115 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:47:17,120 INFO L80 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-06 00:47:17,124 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 118 places, 107 transitions, 234 flow [2020-10-06 00:47:17,150 INFO L129 PetriNetUnfolder]: 2/103 cut-off events. [2020-10-06 00:47:17,150 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 00:47:17,154 INFO L80 FinitePrefix]: Finished finitePrefix Result has 116 conditions, 103 events. 2/103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 68 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-06 00:47:17,156 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2248 [2020-10-06 00:47:17,157 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 00:47:17,452 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-10-06 00:47:17,994 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 00:47:18,724 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-10-06 00:47:19,656 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-06 00:47:19,812 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-06 00:47:19,915 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-10-06 00:47:19,955 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4626 [2020-10-06 00:47:19,956 INFO L214 etLargeBlockEncoding]: Total number of compositions: 83 [2020-10-06 00:47:19,961 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 30 transitions, 80 flow [2020-10-06 00:47:20,141 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2090 states. [2020-10-06 00:47:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states. [2020-10-06 00:47:20,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 00:47:20,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:20,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:20,157 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:20,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:20,164 INFO L82 PathProgramCache]: Analyzing trace with hash -543229691, now seen corresponding path program 1 times [2020-10-06 00:47:20,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:20,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326738138] [2020-10-06 00:47:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:20,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:20,474 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326738138] [2020-10-06 00:47:20,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:20,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:47:20,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1118744601] [2020-10-06 00:47:20,477 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:20,480 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:20,497 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 00:47:20,497 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:20,502 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:20,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:47:20,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:20,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:47:20,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:47:20,521 INFO L87 Difference]: Start difference. First operand 2090 states. Second operand 3 states. [2020-10-06 00:47:20,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:20,594 INFO L93 Difference]: Finished difference Result 1770 states and 6672 transitions. [2020-10-06 00:47:20,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:47:20,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 00:47:20,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:20,631 INFO L225 Difference]: With dead ends: 1770 [2020-10-06 00:47:20,631 INFO L226 Difference]: Without dead ends: 1450 [2020-10-06 00:47:20,633 INFO L675 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 [2020-10-06 00:47:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2020-10-06 00:47:20,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1450. [2020-10-06 00:47:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2020-10-06 00:47:20,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 5376 transitions. [2020-10-06 00:47:20,786 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 5376 transitions. Word has length 9 [2020-10-06 00:47:20,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:20,787 INFO L479 AbstractCegarLoop]: Abstraction has 1450 states and 5376 transitions. [2020-10-06 00:47:20,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:47:20,787 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 5376 transitions. [2020-10-06 00:47:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 00:47:20,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:20,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:20,793 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 00:47:20,793 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:20,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:20,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1942314390, now seen corresponding path program 1 times [2020-10-06 00:47:20,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:20,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084907266] [2020-10-06 00:47:20,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:20,913 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084907266] [2020-10-06 00:47:20,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:20,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:47:20,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [997890978] [2020-10-06 00:47:20,914 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:20,916 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:20,917 INFO L258 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-06 00:47:20,918 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:20,918 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:20,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:47:20,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:20,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:47:20,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:47:20,920 INFO L87 Difference]: Start difference. First operand 1450 states and 5376 transitions. Second operand 3 states. [2020-10-06 00:47:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:20,941 INFO L93 Difference]: Finished difference Result 1410 states and 5194 transitions. [2020-10-06 00:47:20,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:47:20,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-06 00:47:20,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:20,954 INFO L225 Difference]: With dead ends: 1410 [2020-10-06 00:47:20,954 INFO L226 Difference]: Without dead ends: 1410 [2020-10-06 00:47:20,955 INFO L675 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 [2020-10-06 00:47:21,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2020-10-06 00:47:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1410. [2020-10-06 00:47:21,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1410 states. [2020-10-06 00:47:21,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 5194 transitions. [2020-10-06 00:47:21,078 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 5194 transitions. Word has length 11 [2020-10-06 00:47:21,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:21,079 INFO L479 AbstractCegarLoop]: Abstraction has 1410 states and 5194 transitions. [2020-10-06 00:47:21,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:47:21,079 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 5194 transitions. [2020-10-06 00:47:21,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 00:47:21,082 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:21,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:21,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 00:47:21,083 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:21,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:21,083 INFO L82 PathProgramCache]: Analyzing trace with hash 82203517, now seen corresponding path program 1 times [2020-10-06 00:47:21,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:21,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99536560] [2020-10-06 00:47:21,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:21,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:21,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99536560] [2020-10-06 00:47:21,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:21,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 00:47:21,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [288574278] [2020-10-06 00:47:21,138 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:21,139 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:21,142 INFO L258 McrAutomatonBuilder]: Finished intersection with 17 states and 20 transitions. [2020-10-06 00:47:21,142 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:21,224 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:21,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:47:21,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:21,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:47:21,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:47:21,225 INFO L87 Difference]: Start difference. First operand 1410 states and 5194 transitions. Second operand 3 states. [2020-10-06 00:47:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:21,251 INFO L93 Difference]: Finished difference Result 1380 states and 5060 transitions. [2020-10-06 00:47:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:47:21,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-06 00:47:21,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:21,265 INFO L225 Difference]: With dead ends: 1380 [2020-10-06 00:47:21,265 INFO L226 Difference]: Without dead ends: 1380 [2020-10-06 00:47:21,266 INFO L675 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 [2020-10-06 00:47:21,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2020-10-06 00:47:21,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1380. [2020-10-06 00:47:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1380 states. [2020-10-06 00:47:21,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 5060 transitions. [2020-10-06 00:47:21,334 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 5060 transitions. Word has length 12 [2020-10-06 00:47:21,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:21,334 INFO L479 AbstractCegarLoop]: Abstraction has 1380 states and 5060 transitions. [2020-10-06 00:47:21,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:47:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 5060 transitions. [2020-10-06 00:47:21,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:47:21,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:21,341 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:21,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 00:47:21,341 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:21,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:21,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1886679985, now seen corresponding path program 1 times [2020-10-06 00:47:21,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:21,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913260836] [2020-10-06 00:47:21,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:21,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:21,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913260836] [2020-10-06 00:47:21,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:21,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 00:47:21,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2106402685] [2020-10-06 00:47:21,401 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:21,403 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:21,406 INFO L258 McrAutomatonBuilder]: Finished intersection with 26 states and 37 transitions. [2020-10-06 00:47:21,407 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:21,408 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 00:47:21,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 00:47:21,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:21,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 00:47:21,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:47:21,410 INFO L87 Difference]: Start difference. First operand 1380 states and 5060 transitions. Second operand 3 states. [2020-10-06 00:47:21,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:21,438 INFO L93 Difference]: Finished difference Result 1868 states and 6582 transitions. [2020-10-06 00:47:21,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 00:47:21,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-06 00:47:21,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:21,450 INFO L225 Difference]: With dead ends: 1868 [2020-10-06 00:47:21,451 INFO L226 Difference]: Without dead ends: 1460 [2020-10-06 00:47:21,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 00:47:21,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2020-10-06 00:47:21,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1340. [2020-10-06 00:47:21,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2020-10-06 00:47:21,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 4694 transitions. [2020-10-06 00:47:21,500 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 4694 transitions. Word has length 13 [2020-10-06 00:47:21,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:21,500 INFO L479 AbstractCegarLoop]: Abstraction has 1340 states and 4694 transitions. [2020-10-06 00:47:21,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 00:47:21,500 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 4694 transitions. [2020-10-06 00:47:21,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 00:47:21,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 00:47:21,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 00:47:21,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 00:47:21,503 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 00:47:21,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 00:47:21,503 INFO L82 PathProgramCache]: Analyzing trace with hash -538429830, now seen corresponding path program 1 times [2020-10-06 00:47:21,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 00:47:21,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835959674] [2020-10-06 00:47:21,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 00:47:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 00:47:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 00:47:21,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835959674] [2020-10-06 00:47:21,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 00:47:21,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 00:47:21,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1542952351] [2020-10-06 00:47:21,569 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 00:47:21,570 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 00:47:21,573 INFO L258 McrAutomatonBuilder]: Finished intersection with 29 states and 47 transitions. [2020-10-06 00:47:21,573 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 00:47:21,651 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:47:21,697 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 00:47:21,720 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-06 00:47:21,720 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-06 00:47:21,745 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [21905#(= (mod ~main$tmp_guard0~0 256) 0)] [2020-10-06 00:47:21,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-06 00:47:21,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 00:47:21,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-06 00:47:21,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-06 00:47:21,747 INFO L87 Difference]: Start difference. First operand 1340 states and 4694 transitions. Second operand 5 states. [2020-10-06 00:47:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 00:47:21,782 INFO L93 Difference]: Finished difference Result 1022 states and 3148 transitions. [2020-10-06 00:47:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 00:47:21,783 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-06 00:47:21,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 00:47:21,783 INFO L225 Difference]: With dead ends: 1022 [2020-10-06 00:47:21,783 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 00:47:21,784 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-06 00:47:21,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 00:47:21,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 00:47:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 00:47:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 00:47:21,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-06 00:47:21,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 00:47:21,785 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 00:47:21,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-06 00:47:21,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 00:47:21,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 00:47:21,786 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 00:47:21,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 12:47:21 BasicIcfg [2020-10-06 00:47:21,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 00:47:21,792 INFO L168 Benchmark]: Toolchain (without parser) took 7615.22 ms. Allocated memory was 147.8 MB in the beginning and 308.8 MB in the end (delta: 161.0 MB). Free memory was 101.3 MB in the beginning and 128.8 MB in the end (delta: -27.5 MB). Peak memory consumption was 133.5 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:21,792 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-06 00:47:21,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 785.98 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 101.1 MB in the beginning and 160.7 MB in the end (delta: -59.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:21,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.58 ms. Allocated memory is still 207.1 MB. Free memory was 160.7 MB in the beginning and 158.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:21,795 INFO L168 Benchmark]: Boogie Preprocessor took 38.68 ms. Allocated memory is still 207.1 MB. Free memory was 158.1 MB in the beginning and 155.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:21,796 INFO L168 Benchmark]: RCFGBuilder took 1839.58 ms. Allocated memory was 207.1 MB in the beginning and 244.3 MB in the end (delta: 37.2 MB). Free memory was 155.5 MB in the beginning and 205.8 MB in the end (delta: -50.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:21,797 INFO L168 Benchmark]: TraceAbstraction took 4884.12 ms. Allocated memory was 244.3 MB in the beginning and 308.8 MB in the end (delta: 64.5 MB). Free memory was 204.1 MB in the beginning and 128.8 MB in the end (delta: 75.3 MB). Peak memory consumption was 139.8 MB. Max. memory is 7.1 GB. [2020-10-06 00:47:21,801 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 147.8 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 785.98 ms. Allocated memory was 147.8 MB in the beginning and 207.1 MB in the end (delta: 59.2 MB). Free memory was 101.1 MB in the beginning and 160.7 MB in the end (delta: -59.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 61.58 ms. Allocated memory is still 207.1 MB. Free memory was 160.7 MB in the beginning and 158.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.68 ms. Allocated memory is still 207.1 MB. Free memory was 158.1 MB in the beginning and 155.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1839.58 ms. Allocated memory was 207.1 MB in the beginning and 244.3 MB in the end (delta: 37.2 MB). Free memory was 155.5 MB in the beginning and 205.8 MB in the end (delta: -50.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4884.12 ms. Allocated memory was 244.3 MB in the beginning and 308.8 MB in the end (delta: 64.5 MB). Free memory was 204.1 MB in the beginning and 128.8 MB in the end (delta: 75.3 MB). Peak memory consumption was 139.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.8s, 118 ProgramPointsBefore, 43 ProgramPointsAfterwards, 107 TransitionsBefore, 30 TransitionsAfterwards, 2248 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 1089 VarBasedMoverChecksPositive, 28 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4626 CheckedPairsTotal, 83 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 106 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 127 SDtfs, 89 SDslu, 97 SDs, 0 SdLazy, 28 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2090occurred 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 120 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1551 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...