/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/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 15:03:31,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 15:03:31,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 15:03:31,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 15:03:31,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 15:03:31,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 15:03:31,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 15:03:31,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 15:03:31,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 15:03:31,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 15:03:31,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 15:03:31,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 15:03:31,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 15:03:31,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 15:03:31,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 15:03:31,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 15:03:31,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 15:03:31,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 15:03:31,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 15:03:31,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 15:03:31,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 15:03:31,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 15:03:31,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 15:03:31,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 15:03:31,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 15:03:31,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 15:03:31,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 15:03:31,920 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 15:03:31,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 15:03:31,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 15:03:31,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 15:03:31,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 15:03:31,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 15:03:31,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 15:03:31,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 15:03:31,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 15:03:31,926 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 15:03:31,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 15:03:31,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 15:03:31,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 15:03:31,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 15:03:31,937 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 [2020-10-11 15:03:31,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 15:03:31,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 15:03:31,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 15:03:31,978 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 15:03:31,978 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 15:03:31,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 15:03:31,979 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 15:03:31,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 15:03:31,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 15:03:31,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 15:03:31,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 15:03:31,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 15:03:31,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 15:03:31,981 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 15:03:31,981 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 15:03:31,981 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 15:03:31,981 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 15:03:31,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 15:03:31,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 15:03:31,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 15:03:31,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 15:03:31,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 15:03:31,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 15:03:31,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 15:03:31,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 15:03:31,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 15:03:31,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 15:03:31,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-11 15:03:31,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-11 15:03:31,984 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 15:03:32,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 15:03:32,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 15:03:32,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 15:03:32,297 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 15:03:32,297 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 15:03:32,298 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-10-11 15:03:32,356 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d0e318a2/82cdd543ea624333a1768837d12667cd/FLAGf5f1c1c2f [2020-10-11 15:03:32,819 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 15:03:32,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2020-10-11 15:03:32,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d0e318a2/82cdd543ea624333a1768837d12667cd/FLAGf5f1c1c2f [2020-10-11 15:03:33,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d0e318a2/82cdd543ea624333a1768837d12667cd [2020-10-11 15:03:33,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 15:03:33,180 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 15:03:33,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 15:03:33,182 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 15:03:33,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 15:03:33,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122f49bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33, skipping insertion in model container [2020-10-11 15:03:33,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 15:03:33,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 15:03:33,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:03:33,698 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 15:03:33,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 15:03:33,827 INFO L208 MainTranslator]: Completed translation [2020-10-11 15:03:33,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33 WrapperNode [2020-10-11 15:03:33,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 15:03:33,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 15:03:33,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 15:03:33,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 15:03:33,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 15:03:33,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 15:03:33,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 15:03:33,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 15:03:33,884 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (1/1) ... [2020-10-11 15:03:33,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 15:03:33,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 15:03:33,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 15:03:33,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 15:03:33,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (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 [2020-10-11 15:03:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 15:03:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 15:03:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 15:03:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 15:03:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 15:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 15:03:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 15:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 15:03:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 15:03:33,962 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 15:03:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 15:03:33,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 15:03:33,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 15:03:33,964 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 15:03:34,326 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 15:03:34,327 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 15:03:34,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:03:34 BoogieIcfgContainer [2020-10-11 15:03:34,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 15:03:34,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 15:03:34,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 15:03:34,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 15:03:34,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 03:03:33" (1/3) ... [2020-10-11 15:03:34,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e3d431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:03:34, skipping insertion in model container [2020-10-11 15:03:34,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 03:03:33" (2/3) ... [2020-10-11 15:03:34,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33e3d431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 03:03:34, skipping insertion in model container [2020-10-11 15:03:34,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 03:03:34" (3/3) ... [2020-10-11 15:03:34,337 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2020-10-11 15:03:34,348 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-11 15:03:34,348 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 15:03:34,355 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 15:03:34,356 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 15:03:34,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,384 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,384 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,384 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,385 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,386 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,386 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,387 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,387 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,388 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,388 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,388 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,389 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,392 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,393 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,393 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,402 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,402 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,403 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,403 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,405 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,406 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 15:03:34,421 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 15:03:34,441 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 15:03:34,441 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-11 15:03:34,441 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 15:03:34,442 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 15:03:34,442 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 15:03:34,442 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 15:03:34,442 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 15:03:34,442 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 15:03:34,455 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-11 15:03:34,458 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-11 15:03:34,460 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 68 transitions, 151 flow [2020-10-11 15:03:34,462 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 68 transitions, 151 flow [2020-10-11 15:03:34,504 INFO L129 PetriNetUnfolder]: 2/65 cut-off events. [2020-10-11 15:03:34,504 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 15:03:34,509 INFO L80 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 65 events. 2/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-10-11 15:03:34,511 INFO L117 LiptonReduction]: Number of co-enabled transitions 1186 [2020-10-11 15:03:35,861 INFO L132 LiptonReduction]: Checked pairs total: 2093 [2020-10-11 15:03:35,862 INFO L134 LiptonReduction]: Total number of compositions: 56 [2020-10-11 15:03:35,868 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-10-11 15:03:35,890 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 234 states. [2020-10-11 15:03:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states. [2020-10-11 15:03:35,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-11 15:03:35,899 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:35,900 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:35,901 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:35,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:35,906 INFO L82 PathProgramCache]: Analyzing trace with hash 364476878, now seen corresponding path program 1 times [2020-10-11 15:03:35,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:35,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609426766] [2020-10-11 15:03:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:36,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609426766] [2020-10-11 15:03:36,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:36,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:03:36,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19943515] [2020-10-11 15:03:36,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:36,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:36,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:36,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:36,159 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 3 states. [2020-10-11 15:03:36,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:36,202 INFO L93 Difference]: Finished difference Result 222 states and 615 transitions. [2020-10-11 15:03:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:36,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-11 15:03:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:36,219 INFO L225 Difference]: With dead ends: 222 [2020-10-11 15:03:36,219 INFO L226 Difference]: Without dead ends: 174 [2020-10-11 15:03:36,220 INFO L673 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 [2020-10-11 15:03:36,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2020-10-11 15:03:36,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2020-10-11 15:03:36,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-10-11 15:03:36,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 463 transitions. [2020-10-11 15:03:36,279 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 463 transitions. Word has length 8 [2020-10-11 15:03:36,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:36,280 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 463 transitions. [2020-10-11 15:03:36,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:36,281 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 463 transitions. [2020-10-11 15:03:36,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-11 15:03:36,282 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:36,282 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:36,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 15:03:36,283 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:36,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:36,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1586119381, now seen corresponding path program 1 times [2020-10-11 15:03:36,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:36,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164968243] [2020-10-11 15:03:36,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:36,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:36,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164968243] [2020-10-11 15:03:36,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:36,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:36,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898239355] [2020-10-11 15:03:36,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:36,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:36,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:36,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:36,371 INFO L87 Difference]: Start difference. First operand 174 states and 463 transitions. Second operand 4 states. [2020-10-11 15:03:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:36,414 INFO L93 Difference]: Finished difference Result 204 states and 513 transitions. [2020-10-11 15:03:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:03:36,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-11 15:03:36,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:36,418 INFO L225 Difference]: With dead ends: 204 [2020-10-11 15:03:36,418 INFO L226 Difference]: Without dead ends: 108 [2020-10-11 15:03:36,419 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 [2020-10-11 15:03:36,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-10-11 15:03:36,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-10-11 15:03:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-11 15:03:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 253 transitions. [2020-10-11 15:03:36,431 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 253 transitions. Word has length 9 [2020-10-11 15:03:36,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:36,436 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 253 transitions. [2020-10-11 15:03:36,436 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:36,437 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 253 transitions. [2020-10-11 15:03:36,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-11 15:03:36,438 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:36,438 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:36,438 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 15:03:36,438 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:36,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:36,439 INFO L82 PathProgramCache]: Analyzing trace with hash 409264718, now seen corresponding path program 1 times [2020-10-11 15:03:36,439 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:36,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810006678] [2020-10-11 15:03:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:36,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:36,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810006678] [2020-10-11 15:03:36,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:36,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-11 15:03:36,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129870266] [2020-10-11 15:03:36,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:36,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:36,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:36,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:36,497 INFO L87 Difference]: Start difference. First operand 108 states and 253 transitions. Second operand 3 states. [2020-10-11 15:03:36,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:36,506 INFO L93 Difference]: Finished difference Result 106 states and 246 transitions. [2020-10-11 15:03:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:36,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-11 15:03:36,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:36,507 INFO L225 Difference]: With dead ends: 106 [2020-10-11 15:03:36,508 INFO L226 Difference]: Without dead ends: 106 [2020-10-11 15:03:36,508 INFO L673 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 [2020-10-11 15:03:36,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-11 15:03:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-10-11 15:03:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-11 15:03:36,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 246 transitions. [2020-10-11 15:03:36,517 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 246 transitions. Word has length 11 [2020-10-11 15:03:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:36,517 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 246 transitions. [2020-10-11 15:03:36,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 246 transitions. [2020-10-11 15:03:36,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:03:36,522 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:36,522 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:36,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 15:03:36,522 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:36,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:36,523 INFO L82 PathProgramCache]: Analyzing trace with hash -197699224, now seen corresponding path program 1 times [2020-10-11 15:03:36,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:36,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278816376] [2020-10-11 15:03:36,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:36,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:36,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:36,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278816376] [2020-10-11 15:03:36,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:36,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:36,600 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277462400] [2020-10-11 15:03:36,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:36,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:36,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:36,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:36,602 INFO L87 Difference]: Start difference. First operand 106 states and 246 transitions. Second operand 4 states. [2020-10-11 15:03:36,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:36,620 INFO L93 Difference]: Finished difference Result 138 states and 314 transitions. [2020-10-11 15:03:36,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-11 15:03:36,621 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:03:36,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:36,622 INFO L225 Difference]: With dead ends: 138 [2020-10-11 15:03:36,622 INFO L226 Difference]: Without dead ends: 60 [2020-10-11 15:03:36,623 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 [2020-10-11 15:03:36,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-11 15:03:36,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-11 15:03:36,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-11 15:03:36,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 129 transitions. [2020-10-11 15:03:36,627 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 129 transitions. Word has length 12 [2020-10-11 15:03:36,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:36,628 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 129 transitions. [2020-10-11 15:03:36,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 129 transitions. [2020-10-11 15:03:36,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-11 15:03:36,629 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:36,629 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:36,629 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 15:03:36,629 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:36,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:36,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1143893480, now seen corresponding path program 2 times [2020-10-11 15:03:36,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:36,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975750937] [2020-10-11 15:03:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:36,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:36,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975750937] [2020-10-11 15:03:36,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:36,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:36,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090565629] [2020-10-11 15:03:36,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-11 15:03:36,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:36,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-11 15:03:36,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-11 15:03:36,722 INFO L87 Difference]: Start difference. First operand 60 states and 129 transitions. Second operand 4 states. [2020-10-11 15:03:36,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:36,757 INFO L93 Difference]: Finished difference Result 73 states and 142 transitions. [2020-10-11 15:03:36,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-11 15:03:36,758 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-11 15:03:36,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:36,758 INFO L225 Difference]: With dead ends: 73 [2020-10-11 15:03:36,759 INFO L226 Difference]: Without dead ends: 52 [2020-10-11 15:03:36,759 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 [2020-10-11 15:03:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-11 15:03:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-11 15:03:36,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-11 15:03:36,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 101 transitions. [2020-10-11 15:03:36,763 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 101 transitions. Word has length 12 [2020-10-11 15:03:36,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:36,764 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 101 transitions. [2020-10-11 15:03:36,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-11 15:03:36,764 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 101 transitions. [2020-10-11 15:03:36,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-11 15:03:36,765 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:36,765 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:36,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 15:03:36,765 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:36,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:36,766 INFO L82 PathProgramCache]: Analyzing trace with hash -1190230917, now seen corresponding path program 1 times [2020-10-11 15:03:36,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:36,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121117561] [2020-10-11 15:03:36,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:36,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121117561] [2020-10-11 15:03:36,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:36,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-11 15:03:36,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634504642] [2020-10-11 15:03:36,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-11 15:03:36,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:36,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-11 15:03:36,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-11 15:03:36,844 INFO L87 Difference]: Start difference. First operand 52 states and 101 transitions. Second operand 5 states. [2020-10-11 15:03:36,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:36,894 INFO L93 Difference]: Finished difference Result 53 states and 91 transitions. [2020-10-11 15:03:36,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 15:03:36,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-11 15:03:36,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:36,895 INFO L225 Difference]: With dead ends: 53 [2020-10-11 15:03:36,895 INFO L226 Difference]: Without dead ends: 38 [2020-10-11 15:03:36,896 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:03:36,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-11 15:03:36,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-11 15:03:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-11 15:03:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2020-10-11 15:03:36,899 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 61 transitions. Word has length 13 [2020-10-11 15:03:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:36,900 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 61 transitions. [2020-10-11 15:03:36,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-11 15:03:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 61 transitions. [2020-10-11 15:03:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-11 15:03:36,901 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:36,901 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:36,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 15:03:36,901 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:36,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:36,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1757733921, now seen corresponding path program 1 times [2020-10-11 15:03:36,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:36,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293553582] [2020-10-11 15:03:36,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:36,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293553582] [2020-10-11 15:03:36,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:36,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-11 15:03:36,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377612644] [2020-10-11 15:03:36,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 15:03:36,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:36,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 15:03:36,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-11 15:03:36,973 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. Second operand 6 states. [2020-10-11 15:03:37,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:37,030 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2020-10-11 15:03:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 15:03:37,031 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-10-11 15:03:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:37,032 INFO L225 Difference]: With dead ends: 35 [2020-10-11 15:03:37,032 INFO L226 Difference]: Without dead ends: 29 [2020-10-11 15:03:37,032 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-11 15:03:37,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-11 15:03:37,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-11 15:03:37,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-11 15:03:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-10-11 15:03:37,037 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 14 [2020-10-11 15:03:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:37,037 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-10-11 15:03:37,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 15:03:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-10-11 15:03:37,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-11 15:03:37,038 INFO L413 BasicCegarLoop]: Found error trace [2020-10-11 15:03:37,038 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 15:03:37,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 15:03:37,039 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 15:03:37,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 15:03:37,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1250665313, now seen corresponding path program 1 times [2020-10-11 15:03:37,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 15:03:37,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030389319] [2020-10-11 15:03:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 15:03:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 15:03:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 15:03:37,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030389319] [2020-10-11 15:03:37,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 15:03:37,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 15:03:37,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947095382] [2020-10-11 15:03:37,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 15:03:37,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 15:03:37,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 15:03:37,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:37,090 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2020-10-11 15:03:37,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-11 15:03:37,096 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2020-10-11 15:03:37,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 15:03:37,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-10-11 15:03:37,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-11 15:03:37,098 INFO L225 Difference]: With dead ends: 28 [2020-10-11 15:03:37,098 INFO L226 Difference]: Without dead ends: 0 [2020-10-11 15:03:37,098 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 15:03:37,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-11 15:03:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-11 15:03:37,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-11 15:03:37,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-11 15:03:37,099 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-11 15:03:37,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-11 15:03:37,100 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-11 15:03:37,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 15:03:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-11 15:03:37,100 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-11 15:03:37,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 15:03:37,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 03:03:37 BasicIcfg [2020-10-11 15:03:37,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 15:03:37,113 INFO L168 Benchmark]: Toolchain (without parser) took 3928.98 ms. Allocated memory was 252.7 MB in the beginning and 372.2 MB in the end (delta: 119.5 MB). Free memory was 207.9 MB in the beginning and 264.6 MB in the end (delta: -56.8 MB). Peak memory consumption was 62.7 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:37,117 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 15:03:37,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.51 ms. Allocated memory was 252.7 MB in the beginning and 318.8 MB in the end (delta: 66.1 MB). Free memory was 207.9 MB in the beginning and 272.1 MB in the end (delta: -64.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:37,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.53 ms. Allocated memory is still 318.8 MB. Free memory was 272.1 MB in the beginning and 269.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:37,121 INFO L168 Benchmark]: Boogie Preprocessor took 24.99 ms. Allocated memory is still 318.8 MB. Free memory was 269.6 MB in the beginning and 267.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:37,121 INFO L168 Benchmark]: RCFGBuilder took 428.76 ms. Allocated memory is still 318.8 MB. Free memory was 267.1 MB in the beginning and 245.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:37,122 INFO L168 Benchmark]: TraceAbstraction took 2776.76 ms. Allocated memory was 318.8 MB in the beginning and 372.2 MB in the end (delta: 53.5 MB). Free memory was 245.2 MB in the beginning and 264.6 MB in the end (delta: -19.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 14.2 GB. [2020-10-11 15:03:37,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 646.51 ms. Allocated memory was 252.7 MB in the beginning and 318.8 MB in the end (delta: 66.1 MB). Free memory was 207.9 MB in the beginning and 272.1 MB in the end (delta: -64.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.53 ms. Allocated memory is still 318.8 MB. Free memory was 272.1 MB in the beginning and 269.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 24.99 ms. Allocated memory is still 318.8 MB. Free memory was 269.6 MB in the beginning and 267.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 428.76 ms. Allocated memory is still 318.8 MB. Free memory was 267.1 MB in the beginning and 245.2 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2776.76 ms. Allocated memory was 318.8 MB in the beginning and 372.2 MB in the end (delta: 53.5 MB). Free memory was 245.2 MB in the beginning and 264.6 MB in the end (delta: -19.5 MB). Peak memory consumption was 34.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 7 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 76 PlacesBefore, 30 PlacesAfterwards, 68 TransitionsBefore, 20 TransitionsAfterwards, 1186 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 56 TotalNumberOfCompositions, 2093 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, 67 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 125 SDtfs, 102 SDslu, 132 SDs, 0 SdLazy, 102 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred 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: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 3039 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...