/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/safe019_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 12:58:09,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 12:58:09,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 12:58:09,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 12:58:09,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 12:58:09,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 12:58:09,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 12:58:09,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 12:58:09,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 12:58:09,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 12:58:09,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 12:58:09,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 12:58:09,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 12:58:09,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 12:58:09,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 12:58:09,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 12:58:09,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 12:58:09,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 12:58:09,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 12:58:09,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 12:58:09,520 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 12:58:09,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 12:58:09,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 12:58:09,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 12:58:09,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 12:58:09,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 12:58:09,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 12:58:09,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 12:58:09,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 12:58:09,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 12:58:09,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 12:58:09,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 12:58:09,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 12:58:09,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 12:58:09,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 12:58:09,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 12:58:09,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 12:58:09,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 12:58:09,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 12:58:09,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 12:58:09,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 12:58:09,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 12:58:09,595 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 12:58:09,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 12:58:09,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 12:58:09,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 12:58:09,597 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 12:58:09,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 12:58:09,598 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 12:58:09,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 12:58:09,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 12:58:09,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 12:58:09,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 12:58:09,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 12:58:09,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 12:58:09,600 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 12:58:09,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 12:58:09,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 12:58:09,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 12:58:09,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 12:58:09,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 12:58:09,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 12:58:09,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 12:58:09,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:58:09,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 12:58:09,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 12:58:09,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 12:58:09,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 12:58:09,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 12:58:09,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 12:58:09,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 12:58:09,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 12:58:09,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 12:58:09,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 12:58:09,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 12:58:09,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 12:58:09,933 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 12:58:09,934 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-09 12:58:09,998 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33f8de1d/e20e641ea67c4b80b2def0216dd89d89/FLAG63bad88f6 [2020-10-09 12:58:10,559 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 12:58:10,560 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.opt.i [2020-10-09 12:58:10,575 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33f8de1d/e20e641ea67c4b80b2def0216dd89d89/FLAG63bad88f6 [2020-10-09 12:58:10,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33f8de1d/e20e641ea67c4b80b2def0216dd89d89 [2020-10-09 12:58:10,869 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 12:58:10,871 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 12:58:10,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 12:58:10,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 12:58:10,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 12:58:10,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:58:10" (1/1) ... [2020-10-09 12:58:10,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669bbf97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:10, skipping insertion in model container [2020-10-09 12:58:10,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 12:58:10" (1/1) ... [2020-10-09 12:58:10,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 12:58:10,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 12:58:11,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:58:11,414 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 12:58:11,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 12:58:11,566 INFO L208 MainTranslator]: Completed translation [2020-10-09 12:58:11,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11 WrapperNode [2020-10-09 12:58:11,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 12:58:11,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 12:58:11,569 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 12:58:11,569 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 12:58:11,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,652 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 12:58:11,653 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 12:58:11,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 12:58:11,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 12:58:11,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... [2020-10-09 12:58:11,681 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 12:58:11,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 12:58:11,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 12:58:11,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 12:58:11,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 12:58:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 12:58:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 12:58:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 12:58:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 12:58:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 12:58:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 12:58:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 12:58:11,749 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 12:58:11,749 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 12:58:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 12:58:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-09 12:58:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-09 12:58:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 12:58:11,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 12:58:11,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 12:58:11,752 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 12:58:12,107 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 12:58:12,108 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-09 12:58:12,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:58:12 BoogieIcfgContainer [2020-10-09 12:58:12,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 12:58:12,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 12:58:12,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 12:58:12,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 12:58:12,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 12:58:10" (1/3) ... [2020-10-09 12:58:12,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3f402d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:58:12, skipping insertion in model container [2020-10-09 12:58:12,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 12:58:11" (2/3) ... [2020-10-09 12:58:12,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f3f402d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 12:58:12, skipping insertion in model container [2020-10-09 12:58:12,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 12:58:12" (3/3) ... [2020-10-09 12:58:12,119 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_tso.opt.i [2020-10-09 12:58:12,131 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 12:58:12,132 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 12:58:12,140 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 12:58:12,141 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 12:58:12,171 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,172 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,172 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,172 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,174 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,174 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,174 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,175 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,175 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,175 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,176 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,176 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,176 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,177 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,177 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,177 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,178 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,178 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,178 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,179 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,183 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,184 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,184 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,189 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,189 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,191 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,192 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,200 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,201 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,201 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 12:58:12,214 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-09 12:58:12,232 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 12:58:12,232 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 12:58:12,232 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 12:58:12,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 12:58:12,233 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 12:58:12,233 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 12:58:12,233 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 12:58:12,233 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 12:58:12,246 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 12:58:12,248 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-09 12:58:12,250 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 81 transitions, 182 flow [2020-10-09 12:58:12,252 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-09 12:58:12,299 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-09 12:58:12,299 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 12:58:12,304 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-09 12:58:12,308 INFO L117 LiptonReduction]: Number of co-enabled transitions 1822 [2020-10-09 12:58:13,989 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-10-09 12:58:14,240 INFO L132 LiptonReduction]: Checked pairs total: 3343 [2020-10-09 12:58:14,240 INFO L134 LiptonReduction]: Total number of compositions: 67 [2020-10-09 12:58:14,247 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 25 transitions, 70 flow [2020-10-09 12:58:14,295 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-09 12:58:14,297 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-09 12:58:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-09 12:58:14,308 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:14,309 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:14,309 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:14,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:14,316 INFO L82 PathProgramCache]: Analyzing trace with hash -2005095105, now seen corresponding path program 1 times [2020-10-09 12:58:14,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:14,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019384528] [2020-10-09 12:58:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:14,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:14,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019384528] [2020-10-09 12:58:14,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:14,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:58:14,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403301252] [2020-10-09 12:58:14,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:58:14,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:14,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:58:14,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:58:14,588 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-09 12:58:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:14,646 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-09 12:58:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:58:14,648 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-09 12:58:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:14,673 INFO L225 Difference]: With dead ends: 670 [2020-10-09 12:58:14,673 INFO L226 Difference]: Without dead ends: 526 [2020-10-09 12:58:14,675 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 [2020-10-09 12:58:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-09 12:58:14,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-09 12:58:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-09 12:58:14,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-09 12:58:14,776 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-09 12:58:14,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:14,777 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-09 12:58:14,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:58:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-09 12:58:14,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-09 12:58:14,780 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:14,780 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:14,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 12:58:14,781 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:14,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:14,781 INFO L82 PathProgramCache]: Analyzing trace with hash -2027599793, now seen corresponding path program 1 times [2020-10-09 12:58:14,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:14,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208235322] [2020-10-09 12:58:14,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:14,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:14,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208235322] [2020-10-09 12:58:14,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:14,909 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:58:14,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295896225] [2020-10-09 12:58:14,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:14,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:14,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:14,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:14,913 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-09 12:58:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:14,972 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-09 12:58:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:58:14,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-09 12:58:14,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:14,976 INFO L225 Difference]: With dead ends: 682 [2020-10-09 12:58:14,977 INFO L226 Difference]: Without dead ends: 394 [2020-10-09 12:58:14,979 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:14,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-09 12:58:15,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-09 12:58:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-09 12:58:15,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-09 12:58:15,005 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-09 12:58:15,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,005 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-09 12:58:15,005 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:15,005 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-09 12:58:15,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-09 12:58:15,007 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,008 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 12:58:15,008 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1004375926, now seen corresponding path program 1 times [2020-10-09 12:58:15,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062332456] [2020-10-09 12:58:15,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062332456] [2020-10-09 12:58:15,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:58:15,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221299252] [2020-10-09 12:58:15,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:58:15,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:58:15,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:58:15,058 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-09 12:58:15,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,070 INFO L93 Difference]: Finished difference Result 386 states and 1190 transitions. [2020-10-09 12:58:15,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:58:15,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-09 12:58:15,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,075 INFO L225 Difference]: With dead ends: 386 [2020-10-09 12:58:15,075 INFO L226 Difference]: Without dead ends: 386 [2020-10-09 12:58:15,075 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 [2020-10-09 12:58:15,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2020-10-09 12:58:15,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2020-10-09 12:58:15,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-10-09 12:58:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1190 transitions. [2020-10-09 12:58:15,095 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1190 transitions. Word has length 12 [2020-10-09 12:58:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,096 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 1190 transitions. [2020-10-09 12:58:15,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:58:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1190 transitions. [2020-10-09 12:58:15,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-09 12:58:15,098 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,099 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 12:58:15,099 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1071238165, now seen corresponding path program 1 times [2020-10-09 12:58:15,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504219785] [2020-10-09 12:58:15,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504219785] [2020-10-09 12:58:15,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:58:15,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074860811] [2020-10-09 12:58:15,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:58:15,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:58:15,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:58:15,156 INFO L87 Difference]: Start difference. First operand 386 states and 1190 transitions. Second operand 3 states. [2020-10-09 12:58:15,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,181 INFO L93 Difference]: Finished difference Result 466 states and 1378 transitions. [2020-10-09 12:58:15,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:58:15,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-09 12:58:15,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,185 INFO L225 Difference]: With dead ends: 466 [2020-10-09 12:58:15,185 INFO L226 Difference]: Without dead ends: 402 [2020-10-09 12:58:15,186 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 [2020-10-09 12:58:15,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2020-10-09 12:58:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 370. [2020-10-09 12:58:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-10-09 12:58:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1098 transitions. [2020-10-09 12:58:15,200 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1098 transitions. Word has length 13 [2020-10-09 12:58:15,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,201 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1098 transitions. [2020-10-09 12:58:15,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:58:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1098 transitions. [2020-10-09 12:58:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-09 12:58:15,203 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,203 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-09 12:58:15,203 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1070883463, now seen corresponding path program 1 times [2020-10-09 12:58:15,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173883704] [2020-10-09 12:58:15,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173883704] [2020-10-09 12:58:15,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-09 12:58:15,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17836178] [2020-10-09 12:58:15,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 12:58:15,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 12:58:15,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 12:58:15,248 INFO L87 Difference]: Start difference. First operand 370 states and 1098 transitions. Second operand 3 states. [2020-10-09 12:58:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,258 INFO L93 Difference]: Finished difference Result 358 states and 1054 transitions. [2020-10-09 12:58:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 12:58:15,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-09 12:58:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,262 INFO L225 Difference]: With dead ends: 358 [2020-10-09 12:58:15,263 INFO L226 Difference]: Without dead ends: 358 [2020-10-09 12:58:15,263 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 [2020-10-09 12:58:15,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-10-09 12:58:15,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2020-10-09 12:58:15,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-10-09 12:58:15,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 1054 transitions. [2020-10-09 12:58:15,277 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 1054 transitions. Word has length 13 [2020-10-09 12:58:15,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,277 INFO L481 AbstractCegarLoop]: Abstraction has 358 states and 1054 transitions. [2020-10-09 12:58:15,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 12:58:15,277 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 1054 transitions. [2020-10-09 12:58:15,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:58:15,279 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,279 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-09 12:58:15,279 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1189218785, now seen corresponding path program 1 times [2020-10-09 12:58:15,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286366837] [2020-10-09 12:58:15,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286366837] [2020-10-09 12:58:15,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:58:15,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961853265] [2020-10-09 12:58:15,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:15,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:15,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:15,325 INFO L87 Difference]: Start difference. First operand 358 states and 1054 transitions. Second operand 4 states. [2020-10-09 12:58:15,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,352 INFO L93 Difference]: Finished difference Result 514 states and 1482 transitions. [2020-10-09 12:58:15,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:58:15,352 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-09 12:58:15,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,355 INFO L225 Difference]: With dead ends: 514 [2020-10-09 12:58:15,355 INFO L226 Difference]: Without dead ends: 274 [2020-10-09 12:58:15,355 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:15,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-09 12:58:15,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-09 12:58:15,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-09 12:58:15,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 775 transitions. [2020-10-09 12:58:15,366 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 775 transitions. Word has length 14 [2020-10-09 12:58:15,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,366 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 775 transitions. [2020-10-09 12:58:15,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:15,366 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 775 transitions. [2020-10-09 12:58:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-09 12:58:15,367 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,368 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-09 12:58:15,368 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1162350155, now seen corresponding path program 2 times [2020-10-09 12:58:15,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038057747] [2020-10-09 12:58:15,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038057747] [2020-10-09 12:58:15,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 12:58:15,444 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103520403] [2020-10-09 12:58:15,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:15,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:15,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:15,446 INFO L87 Difference]: Start difference. First operand 274 states and 775 transitions. Second operand 4 states. [2020-10-09 12:58:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,490 INFO L93 Difference]: Finished difference Result 345 states and 911 transitions. [2020-10-09 12:58:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:58:15,491 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-09 12:58:15,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,493 INFO L225 Difference]: With dead ends: 345 [2020-10-09 12:58:15,493 INFO L226 Difference]: Without dead ends: 252 [2020-10-09 12:58:15,494 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:15,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-09 12:58:15,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-10-09 12:58:15,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-10-09 12:58:15,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 675 transitions. [2020-10-09 12:58:15,503 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 675 transitions. Word has length 14 [2020-10-09 12:58:15,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,503 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 675 transitions. [2020-10-09 12:58:15,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 675 transitions. [2020-10-09 12:58:15,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-09 12:58:15,504 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,504 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-09 12:58:15,505 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1647463604, now seen corresponding path program 1 times [2020-10-09 12:58:15,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714546163] [2020-10-09 12:58:15,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714546163] [2020-10-09 12:58:15,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:58:15,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538183447] [2020-10-09 12:58:15,580 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-09 12:58:15,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-09 12:58:15,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:15,581 INFO L87 Difference]: Start difference. First operand 252 states and 675 transitions. Second operand 5 states. [2020-10-09 12:58:15,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,662 INFO L93 Difference]: Finished difference Result 278 states and 685 transitions. [2020-10-09 12:58:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-09 12:58:15,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-09 12:58:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,666 INFO L225 Difference]: With dead ends: 278 [2020-10-09 12:58:15,667 INFO L226 Difference]: Without dead ends: 203 [2020-10-09 12:58:15,667 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 [2020-10-09 12:58:15,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-10-09 12:58:15,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-10-09 12:58:15,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-10-09 12:58:15,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 492 transitions. [2020-10-09 12:58:15,685 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 492 transitions. Word has length 15 [2020-10-09 12:58:15,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,686 INFO L481 AbstractCegarLoop]: Abstraction has 203 states and 492 transitions. [2020-10-09 12:58:15,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-09 12:58:15,686 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 492 transitions. [2020-10-09 12:58:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-09 12:58:15,687 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,687 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-09 12:58:15,688 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,688 INFO L82 PathProgramCache]: Analyzing trace with hash -469082430, now seen corresponding path program 1 times [2020-10-09 12:58:15,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67424975] [2020-10-09 12:58:15,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67424975] [2020-10-09 12:58:15,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-09 12:58:15,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622520540] [2020-10-09 12:58:15,776 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-09 12:58:15,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-09 12:58:15,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-09 12:58:15,777 INFO L87 Difference]: Start difference. First operand 203 states and 492 transitions. Second operand 6 states. [2020-10-09 12:58:15,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,846 INFO L93 Difference]: Finished difference Result 200 states and 461 transitions. [2020-10-09 12:58:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 12:58:15,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-09 12:58:15,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,848 INFO L225 Difference]: With dead ends: 200 [2020-10-09 12:58:15,848 INFO L226 Difference]: Without dead ends: 162 [2020-10-09 12:58:15,849 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 [2020-10-09 12:58:15,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-09 12:58:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-09 12:58:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-09 12:58:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 375 transitions. [2020-10-09 12:58:15,854 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 375 transitions. Word has length 16 [2020-10-09 12:58:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,855 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 375 transitions. [2020-10-09 12:58:15,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-09 12:58:15,855 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 375 transitions. [2020-10-09 12:58:15,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-09 12:58:15,856 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,856 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-09 12:58:15,856 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1305224855, now seen corresponding path program 1 times [2020-10-09 12:58:15,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855031313] [2020-10-09 12:58:15,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855031313] [2020-10-09 12:58:15,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:58:15,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272606245] [2020-10-09 12:58:15,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:15,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:15,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:15,890 INFO L87 Difference]: Start difference. First operand 162 states and 375 transitions. Second operand 4 states. [2020-10-09 12:58:15,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:15,909 INFO L93 Difference]: Finished difference Result 194 states and 439 transitions. [2020-10-09 12:58:15,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-09 12:58:15,909 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-10-09 12:58:15,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:15,910 INFO L225 Difference]: With dead ends: 194 [2020-10-09 12:58:15,910 INFO L226 Difference]: Without dead ends: 127 [2020-10-09 12:58:15,911 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:15,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-09 12:58:15,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 125. [2020-10-09 12:58:15,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-09 12:58:15,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 265 transitions. [2020-10-09 12:58:15,915 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 265 transitions. Word has length 18 [2020-10-09 12:58:15,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:15,915 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 265 transitions. [2020-10-09 12:58:15,916 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:15,916 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 265 transitions. [2020-10-09 12:58:15,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-09 12:58:15,916 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:15,917 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:15,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-09 12:58:15,917 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:15,917 INFO L82 PathProgramCache]: Analyzing trace with hash 483879941, now seen corresponding path program 2 times [2020-10-09 12:58:15,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:15,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366901049] [2020-10-09 12:58:15,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:15,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366901049] [2020-10-09 12:58:15,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:15,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-09 12:58:15,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421136821] [2020-10-09 12:58:15,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-09 12:58:15,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:15,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-09 12:58:15,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-09 12:58:15,986 INFO L87 Difference]: Start difference. First operand 125 states and 265 transitions. Second operand 7 states. [2020-10-09 12:58:16,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:16,067 INFO L93 Difference]: Finished difference Result 120 states and 253 transitions. [2020-10-09 12:58:16,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-09 12:58:16,068 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-09 12:58:16,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:16,069 INFO L225 Difference]: With dead ends: 120 [2020-10-09 12:58:16,069 INFO L226 Difference]: Without dead ends: 71 [2020-10-09 12:58:16,069 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-09 12:58:16,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-09 12:58:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-09 12:58:16,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-09 12:58:16,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-09 12:58:16,072 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 18 [2020-10-09 12:58:16,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:16,072 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-09 12:58:16,072 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-09 12:58:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-09 12:58:16,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-09 12:58:16,073 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 12:58:16,073 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 12:58:16,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-09 12:58:16,074 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 12:58:16,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 12:58:16,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1087350585, now seen corresponding path program 1 times [2020-10-09 12:58:16,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 12:58:16,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173171810] [2020-10-09 12:58:16,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 12:58:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 12:58:16,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 12:58:16,115 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173171810] [2020-10-09 12:58:16,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 12:58:16,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 12:58:16,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843896283] [2020-10-09 12:58:16,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 12:58:16,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 12:58:16,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 12:58:16,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 12:58:16,117 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-09 12:58:16,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 12:58:16,127 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-09 12:58:16,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 12:58:16,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-09 12:58:16,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 12:58:16,128 INFO L225 Difference]: With dead ends: 70 [2020-10-09 12:58:16,128 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 12:58:16,129 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-09 12:58:16,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 12:58:16,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 12:58:16,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 12:58:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 12:58:16,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-09 12:58:16,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 12:58:16,130 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 12:58:16,130 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 12:58:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 12:58:16,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 12:58:16,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-09 12:58:16,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 12:58:16 BasicIcfg [2020-10-09 12:58:16,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 12:58:16,136 INFO L168 Benchmark]: Toolchain (without parser) took 5265.44 ms. Allocated memory was 252.2 MB in the beginning and 427.3 MB in the end (delta: 175.1 MB). Free memory was 207.9 MB in the beginning and 320.3 MB in the end (delta: -112.4 MB). Peak memory consumption was 62.7 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:16,137 INFO L168 Benchmark]: CDTParser took 1.55 ms. Allocated memory is still 252.2 MB. Free memory was 230.2 MB in the beginning and 229.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-09 12:58:16,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.75 ms. Allocated memory was 252.2 MB in the beginning and 317.7 MB in the end (delta: 65.5 MB). Free memory was 207.9 MB in the beginning and 271.0 MB in the end (delta: -63.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:16,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.93 ms. Allocated memory is still 317.7 MB. Free memory was 271.0 MB in the beginning and 269.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:16,139 INFO L168 Benchmark]: Boogie Preprocessor took 28.74 ms. Allocated memory is still 317.7 MB. Free memory was 269.3 MB in the beginning and 267.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:16,140 INFO L168 Benchmark]: RCFGBuilder took 428.81 ms. Allocated memory is still 317.7 MB. Free memory was 267.6 MB in the beginning and 242.7 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:16,141 INFO L168 Benchmark]: TraceAbstraction took 4022.53 ms. Allocated memory was 317.7 MB in the beginning and 427.3 MB in the end (delta: 109.6 MB). Free memory was 242.7 MB in the beginning and 320.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 14.2 GB. [2020-10-09 12:58:16,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.55 ms. Allocated memory is still 252.2 MB. Free memory was 230.2 MB in the beginning and 229.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 695.75 ms. Allocated memory was 252.2 MB in the beginning and 317.7 MB in the end (delta: 65.5 MB). Free memory was 207.9 MB in the beginning and 271.0 MB in the end (delta: -63.1 MB). Peak memory consumption was 31.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 83.93 ms. Allocated memory is still 317.7 MB. Free memory was 271.0 MB in the beginning and 269.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.74 ms. Allocated memory is still 317.7 MB. Free memory was 269.3 MB in the beginning and 267.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * RCFGBuilder took 428.81 ms. Allocated memory is still 317.7 MB. Free memory was 267.6 MB in the beginning and 242.7 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4022.53 ms. Allocated memory was 317.7 MB in the beginning and 427.3 MB in the end (delta: 109.6 MB). Free memory was 242.7 MB in the beginning and 320.3 MB in the end (delta: -77.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1203 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 18 SemBasedMoverChecksPositive, 44 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 104 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.9s, 92 PlacesBefore, 38 PlacesAfterwards, 81 TransitionsBefore, 25 TransitionsAfterwards, 1822 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 67 TotalNumberOfCompositions, 3343 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 5 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 258 SDtfs, 237 SDslu, 349 SDs, 0 SdLazy, 196 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 12 MinimizatonAttempts, 34 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 6430 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...