/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-bf4350c [2020-09-17 01:38:52,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-17 01:38:52,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-17 01:38:52,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-17 01:38:52,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-17 01:38:52,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-17 01:38:52,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-17 01:38:52,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-17 01:38:52,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-17 01:38:52,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-17 01:38:52,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-17 01:38:52,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-17 01:38:52,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-17 01:38:52,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-17 01:38:52,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-17 01:38:52,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-17 01:38:52,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-17 01:38:52,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-17 01:38:52,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-17 01:38:52,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-17 01:38:52,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-17 01:38:52,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-17 01:38:52,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-17 01:38:52,893 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-17 01:38:52,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-17 01:38:52,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-17 01:38:52,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-17 01:38:52,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-17 01:38:52,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-17 01:38:52,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-17 01:38:52,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-17 01:38:52,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-17 01:38:52,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-17 01:38:52,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-17 01:38:52,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-17 01:38:52,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-17 01:38:52,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-17 01:38:52,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-17 01:38:52,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-17 01:38:52,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-17 01:38:52,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-17 01:38:52,910 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 [2020-09-17 01:38:52,956 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-17 01:38:52,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-17 01:38:52,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-17 01:38:52,959 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-17 01:38:52,959 INFO L138 SettingsManager]: * Use SBE=true [2020-09-17 01:38:52,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-17 01:38:52,959 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-17 01:38:52,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-17 01:38:52,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-17 01:38:52,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-17 01:38:52,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-17 01:38:52,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-17 01:38:52,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-17 01:38:52,962 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-17 01:38:52,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-17 01:38:52,964 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-17 01:38:52,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-17 01:38:52,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-17 01:38:52,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-17 01:38:52,964 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-17 01:38:52,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-17 01:38:52,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-17 01:38:52,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-17 01:38:52,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-17 01:38:52,966 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-17 01:38:52,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-17 01:38:52,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-17 01:38:52,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-17 01:38:52,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-17 01:38:52,967 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-17 01:38:53,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-17 01:38:53,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-17 01:38:53,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-17 01:38:53,495 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-17 01:38:53,495 INFO L275 PluginConnector]: CDTParser initialized [2020-09-17 01:38:53,497 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-17 01:38:53,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c9dbe0f0/f6a0bf08a15c4acaa985299eff95308f/FLAG39c0ecb7e [2020-09-17 01:38:54,252 INFO L306 CDTParser]: Found 1 translation units. [2020-09-17 01:38:54,253 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin002_tso.oepc.i [2020-09-17 01:38:54,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c9dbe0f0/f6a0bf08a15c4acaa985299eff95308f/FLAG39c0ecb7e [2020-09-17 01:38:54,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c9dbe0f0/f6a0bf08a15c4acaa985299eff95308f [2020-09-17 01:38:54,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-17 01:38:54,468 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-17 01:38:54,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-17 01:38:54,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-17 01:38:54,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-17 01:38:54,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:38:54" (1/1) ... [2020-09-17 01:38:54,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52697317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:54, skipping insertion in model container [2020-09-17 01:38:54,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.09 01:38:54" (1/1) ... [2020-09-17 01:38:54,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-17 01:38:54,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-17 01:38:55,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:38:55,053 INFO L203 MainTranslator]: Completed pre-run [2020-09-17 01:38:55,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-17 01:38:55,210 INFO L208 MainTranslator]: Completed translation [2020-09-17 01:38:55,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55 WrapperNode [2020-09-17 01:38:55,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-17 01:38:55,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-17 01:38:55,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-17 01:38:55,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-17 01:38:55,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-17 01:38:55,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-17 01:38:55,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-17 01:38:55,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-17 01:38:55,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (1/1) ... [2020-09-17 01:38:55,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-17 01:38:55,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-17 01:38:55,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-17 01:38:55,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-17 01:38:55,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (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 [2020-09-17 01:38:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-17 01:38:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-17 01:38:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-17 01:38:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-17 01:38:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-17 01:38:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-17 01:38:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-17 01:38:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-17 01:38:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-17 01:38:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-17 01:38:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-17 01:38:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-17 01:38:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-17 01:38:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-17 01:38:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-17 01:38:55,385 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-17 01:38:55,774 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-17 01:38:55,774 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-17 01:38:55,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:38:55 BoogieIcfgContainer [2020-09-17 01:38:55,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-17 01:38:55,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-17 01:38:55,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-17 01:38:55,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-17 01:38:55,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.09 01:38:54" (1/3) ... [2020-09-17 01:38:55,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c1c6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:38:55, skipping insertion in model container [2020-09-17 01:38:55,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.09 01:38:55" (2/3) ... [2020-09-17 01:38:55,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c1c6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.09 01:38:55, skipping insertion in model container [2020-09-17 01:38:55,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.09 01:38:55" (3/3) ... [2020-09-17 01:38:55,796 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_tso.oepc.i [2020-09-17 01:38:55,805 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-17 01:38:55,805 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-17 01:38:55,814 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-17 01:38:55,815 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-17 01:38:55,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,849 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,850 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,851 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,851 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,852 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,853 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,853 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,854 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,854 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,854 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,855 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,855 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,855 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,856 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,856 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,856 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,861 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,861 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,862 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,862 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,878 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,879 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,879 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,889 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,889 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,891 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,891 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,892 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,892 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-17 01:38:55,913 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-17 01:38:55,939 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-17 01:38:55,939 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-17 01:38:55,939 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-17 01:38:55,940 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-17 01:38:55,940 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-17 01:38:55,940 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-17 01:38:55,940 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-17 01:38:55,940 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-17 01:38:55,960 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-09-17 01:38:55,963 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-17 01:38:56,023 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-17 01:38:56,023 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:38:56,030 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-17 01:38:56,034 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-17 01:38:56,062 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-17 01:38:56,063 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-17 01:38:56,064 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-17 01:38:56,067 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-09-17 01:38:56,069 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-17 01:38:57,882 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-09-17 01:38:57,953 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-09-17 01:38:57,953 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-09-17 01:38:57,958 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-09-17 01:38:58,054 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-09-17 01:38:58,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-17 01:38:58,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-17 01:38:58,070 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:58,071 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:58,071 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:58,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:58,079 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-09-17 01:38:58,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:58,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173679129] [2020-09-17 01:38:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:58,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:58,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173679129] [2020-09-17 01:38:58,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:58,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:38:58,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536454419] [2020-09-17 01:38:58,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-17 01:38:58,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:58,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-17 01:38:58,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:38:58,382 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-09-17 01:38:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:58,485 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-09-17 01:38:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-17 01:38:58,487 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-17 01:38:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:58,524 INFO L225 Difference]: With dead ends: 1450 [2020-09-17 01:38:58,524 INFO L226 Difference]: Without dead ends: 1194 [2020-09-17 01:38:58,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-17 01:38:58,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-09-17 01:38:58,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-09-17 01:38:58,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-09-17 01:38:58,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-09-17 01:38:58,671 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-09-17 01:38:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:58,672 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-09-17 01:38:58,673 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-17 01:38:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-09-17 01:38:58,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-17 01:38:58,679 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:58,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:58,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-17 01:38:58,680 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:58,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:58,680 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-09-17 01:38:58,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:58,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038703328] [2020-09-17 01:38:58,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:58,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:58,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:58,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038703328] [2020-09-17 01:38:58,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:58,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:38:58,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542631634] [2020-09-17 01:38:58,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:38:58,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:58,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:38:58,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:38:58,878 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-09-17 01:38:58,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:58,925 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-09-17 01:38:58,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:38:58,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-17 01:38:58,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:58,936 INFO L225 Difference]: With dead ends: 1322 [2020-09-17 01:38:58,936 INFO L226 Difference]: Without dead ends: 1066 [2020-09-17 01:38:58,937 INFO L675 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 [2020-09-17 01:38:58,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-09-17 01:38:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-09-17 01:38:58,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-09-17 01:38:58,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-09-17 01:38:58,978 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-09-17 01:38:58,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:58,978 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-09-17 01:38:58,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:38:58,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-09-17 01:38:58,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-17 01:38:58,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:58,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:58,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-17 01:38:58,982 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:58,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1585408540, now seen corresponding path program 1 times [2020-09-17 01:38:58,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:58,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740914864] [2020-09-17 01:38:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:59,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:59,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740914864] [2020-09-17 01:38:59,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:59,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:38:59,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926382883] [2020-09-17 01:38:59,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:38:59,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:59,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:38:59,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:38:59,069 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-09-17 01:38:59,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:59,104 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-09-17 01:38:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:38:59,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-17 01:38:59,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:59,113 INFO L225 Difference]: With dead ends: 1162 [2020-09-17 01:38:59,113 INFO L226 Difference]: Without dead ends: 970 [2020-09-17 01:38:59,113 INFO L675 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 [2020-09-17 01:38:59,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-09-17 01:38:59,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-09-17 01:38:59,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-09-17 01:38:59,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-09-17 01:38:59,148 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-09-17 01:38:59,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:59,149 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-09-17 01:38:59,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:38:59,149 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-09-17 01:38:59,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-17 01:38:59,151 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:59,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:59,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-17 01:38:59,151 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:59,152 INFO L82 PathProgramCache]: Analyzing trace with hash -333651602, now seen corresponding path program 1 times [2020-09-17 01:38:59,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:59,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048673073] [2020-09-17 01:38:59,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:59,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:59,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048673073] [2020-09-17 01:38:59,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:59,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:38:59,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210037385] [2020-09-17 01:38:59,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:38:59,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:59,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:38:59,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:38:59,243 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 4 states. [2020-09-17 01:38:59,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:59,273 INFO L93 Difference]: Finished difference Result 1042 states and 3558 transitions. [2020-09-17 01:38:59,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:38:59,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-09-17 01:38:59,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:59,281 INFO L225 Difference]: With dead ends: 1042 [2020-09-17 01:38:59,281 INFO L226 Difference]: Without dead ends: 898 [2020-09-17 01:38:59,282 INFO L675 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 [2020-09-17 01:38:59,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2020-09-17 01:38:59,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2020-09-17 01:38:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-09-17 01:38:59,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 3114 transitions. [2020-09-17 01:38:59,312 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 3114 transitions. Word has length 13 [2020-09-17 01:38:59,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:59,312 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 3114 transitions. [2020-09-17 01:38:59,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:38:59,312 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 3114 transitions. [2020-09-17 01:38:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-17 01:38:59,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:59,314 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:59,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-17 01:38:59,314 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:59,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:59,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1753289104, now seen corresponding path program 1 times [2020-09-17 01:38:59,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:59,315 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137839349] [2020-09-17 01:38:59,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:59,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:59,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137839349] [2020-09-17 01:38:59,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:59,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-17 01:38:59,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863901557] [2020-09-17 01:38:59,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-17 01:38:59,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:59,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-17 01:38:59,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-17 01:38:59,386 INFO L87 Difference]: Start difference. First operand 898 states and 3114 transitions. Second operand 4 states. [2020-09-17 01:38:59,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:59,431 INFO L93 Difference]: Finished difference Result 952 states and 3222 transitions. [2020-09-17 01:38:59,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-17 01:38:59,432 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-09-17 01:38:59,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:59,439 INFO L225 Difference]: With dead ends: 952 [2020-09-17 01:38:59,439 INFO L226 Difference]: Without dead ends: 844 [2020-09-17 01:38:59,439 INFO L675 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 [2020-09-17 01:38:59,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-09-17 01:38:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 844. [2020-09-17 01:38:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2020-09-17 01:38:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 2898 transitions. [2020-09-17 01:38:59,466 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 2898 transitions. Word has length 14 [2020-09-17 01:38:59,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:59,467 INFO L479 AbstractCegarLoop]: Abstraction has 844 states and 2898 transitions. [2020-09-17 01:38:59,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-17 01:38:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 2898 transitions. [2020-09-17 01:38:59,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-17 01:38:59,469 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:59,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:59,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-17 01:38:59,470 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:59,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:59,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1152352578, now seen corresponding path program 1 times [2020-09-17 01:38:59,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:59,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507897801] [2020-09-17 01:38:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:59,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:59,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507897801] [2020-09-17 01:38:59,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:59,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:38:59,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369339393] [2020-09-17 01:38:59,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:38:59,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:59,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:38:59,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:38:59,547 INFO L87 Difference]: Start difference. First operand 844 states and 2898 transitions. Second operand 5 states. [2020-09-17 01:38:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:59,595 INFO L93 Difference]: Finished difference Result 1063 states and 3587 transitions. [2020-09-17 01:38:59,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:38:59,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-09-17 01:38:59,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:59,600 INFO L225 Difference]: With dead ends: 1063 [2020-09-17 01:38:59,601 INFO L226 Difference]: Without dead ends: 598 [2020-09-17 01:38:59,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 01:38:59,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2020-09-17 01:38:59,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 598. [2020-09-17 01:38:59,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2020-09-17 01:38:59,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 1914 transitions. [2020-09-17 01:38:59,620 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 1914 transitions. Word has length 15 [2020-09-17 01:38:59,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:59,620 INFO L479 AbstractCegarLoop]: Abstraction has 598 states and 1914 transitions. [2020-09-17 01:38:59,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:38:59,620 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 1914 transitions. [2020-09-17 01:38:59,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-17 01:38:59,622 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:59,622 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:59,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-17 01:38:59,622 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:59,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:59,623 INFO L82 PathProgramCache]: Analyzing trace with hash -1363663410, now seen corresponding path program 1 times [2020-09-17 01:38:59,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:59,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773938692] [2020-09-17 01:38:59,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:59,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:59,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773938692] [2020-09-17 01:38:59,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:59,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:38:59,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628435569] [2020-09-17 01:38:59,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:38:59,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:59,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:38:59,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:38:59,701 INFO L87 Difference]: Start difference. First operand 598 states and 1914 transitions. Second operand 5 states. [2020-09-17 01:38:59,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:59,753 INFO L93 Difference]: Finished difference Result 712 states and 2245 transitions. [2020-09-17 01:38:59,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:38:59,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-17 01:38:59,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:59,757 INFO L225 Difference]: With dead ends: 712 [2020-09-17 01:38:59,757 INFO L226 Difference]: Without dead ends: 292 [2020-09-17 01:38:59,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 01:38:59,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-09-17 01:38:59,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2020-09-17 01:38:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-09-17 01:38:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 846 transitions. [2020-09-17 01:38:59,772 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 846 transitions. Word has length 16 [2020-09-17 01:38:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:59,772 INFO L479 AbstractCegarLoop]: Abstraction has 292 states and 846 transitions. [2020-09-17 01:38:59,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:38:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 846 transitions. [2020-09-17 01:38:59,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-17 01:38:59,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:59,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:59,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-17 01:38:59,774 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:59,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:59,774 INFO L82 PathProgramCache]: Analyzing trace with hash -670734284, now seen corresponding path program 1 times [2020-09-17 01:38:59,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:59,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999578470] [2020-09-17 01:38:59,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:59,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999578470] [2020-09-17 01:38:59,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:59,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:38:59,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037797755] [2020-09-17 01:38:59,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:38:59,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:59,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:38:59,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:38:59,852 INFO L87 Difference]: Start difference. First operand 292 states and 846 transitions. Second operand 5 states. [2020-09-17 01:38:59,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:38:59,894 INFO L93 Difference]: Finished difference Result 352 states and 1006 transitions. [2020-09-17 01:38:59,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:38:59,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-17 01:38:59,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:38:59,896 INFO L225 Difference]: With dead ends: 352 [2020-09-17 01:38:59,896 INFO L226 Difference]: Without dead ends: 154 [2020-09-17 01:38:59,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 01:38:59,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-09-17 01:38:59,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-09-17 01:38:59,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-09-17 01:38:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 410 transitions. [2020-09-17 01:38:59,902 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 410 transitions. Word has length 17 [2020-09-17 01:38:59,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:38:59,902 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 410 transitions. [2020-09-17 01:38:59,903 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:38:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 410 transitions. [2020-09-17 01:38:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-17 01:38:59,903 INFO L414 BasicCegarLoop]: Found error trace [2020-09-17 01:38:59,904 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-17 01:38:59,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-17 01:38:59,904 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-17 01:38:59,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-17 01:38:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1157328918, now seen corresponding path program 1 times [2020-09-17 01:38:59,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-17 01:38:59,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772819756] [2020-09-17 01:38:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-17 01:38:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-17 01:38:59,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-17 01:38:59,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772819756] [2020-09-17 01:38:59,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-17 01:38:59,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-17 01:38:59,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478253428] [2020-09-17 01:38:59,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-17 01:38:59,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-17 01:38:59,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-17 01:38:59,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-17 01:38:59,975 INFO L87 Difference]: Start difference. First operand 154 states and 410 transitions. Second operand 5 states. [2020-09-17 01:39:00,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-17 01:39:00,007 INFO L93 Difference]: Finished difference Result 130 states and 334 transitions. [2020-09-17 01:39:00,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-17 01:39:00,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-17 01:39:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-17 01:39:00,008 INFO L225 Difference]: With dead ends: 130 [2020-09-17 01:39:00,008 INFO L226 Difference]: Without dead ends: 0 [2020-09-17 01:39:00,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-17 01:39:00,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-17 01:39:00,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-17 01:39:00,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-17 01:39:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-17 01:39:00,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-17 01:39:00,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-17 01:39:00,010 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-17 01:39:00,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-17 01:39:00,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-17 01:39:00,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-17 01:39:00,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-17 01:39:00,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.09 01:39:00 BasicIcfg [2020-09-17 01:39:00,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-17 01:39:00,017 INFO L168 Benchmark]: Toolchain (without parser) took 5552.52 ms. Allocated memory was 139.5 MB in the beginning and 293.1 MB in the end (delta: 153.6 MB). Free memory was 101.1 MB in the beginning and 154.4 MB in the end (delta: -53.3 MB). Peak memory consumption was 100.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:39:00,018 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-17 01:39:00,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.33 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 160.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-09-17 01:39:00,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.28 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-17 01:39:00,020 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.5 MB in the beginning and 157.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:39:00,021 INFO L168 Benchmark]: RCFGBuilder took 476.86 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 132.2 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2020-09-17 01:39:00,022 INFO L168 Benchmark]: TraceAbstraction took 4230.13 ms. Allocated memory was 203.4 MB in the beginning and 293.1 MB in the end (delta: 89.7 MB). Free memory was 131.5 MB in the beginning and 154.4 MB in the end (delta: -22.9 MB). Peak memory consumption was 66.7 MB. Max. memory is 7.1 GB. [2020-09-17 01:39:00,026 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.33 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.5 MB in the beginning and 160.4 MB in the end (delta: -60.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.28 ms. Allocated memory is still 203.4 MB. Free memory was 160.4 MB in the beginning and 158.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.71 ms. Allocated memory is still 203.4 MB. Free memory was 158.5 MB in the beginning and 157.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 476.86 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 132.2 MB in the end (delta: 24.3 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4230.13 ms. Allocated memory was 203.4 MB in the beginning and 293.1 MB in the end (delta: 89.7 MB). Free memory was 131.5 MB in the beginning and 154.4 MB in the end (delta: -22.9 MB). Peak memory consumption was 66.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1045 VarBasedMoverChecksPositive, 45 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 47 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - 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 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 263 SDtfs, 280 SDslu, 349 SDs, 0 SdLazy, 63 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 4689 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...