/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 23:04:18,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 23:04:18,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 23:04:18,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 23:04:18,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 23:04:18,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 23:04:18,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 23:04:18,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 23:04:18,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 23:04:18,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 23:04:18,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 23:04:18,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 23:04:18,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 23:04:18,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 23:04:18,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 23:04:18,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 23:04:18,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 23:04:18,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 23:04:18,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 23:04:18,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 23:04:18,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 23:04:18,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 23:04:18,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 23:04:18,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 23:04:18,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 23:04:18,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 23:04:18,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 23:04:18,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 23:04:18,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 23:04:18,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 23:04:18,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 23:04:18,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 23:04:18,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 23:04:18,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 23:04:18,605 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 23:04:18,605 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 23:04:18,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 23:04:18,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 23:04:18,606 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 23:04:18,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 23:04:18,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 23:04:18,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf [2020-10-21 23:04:18,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 23:04:18,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 23:04:18,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 23:04:18,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 23:04:18,651 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 23:04:18,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 23:04:18,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 23:04:18,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 23:04:18,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 23:04:18,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 23:04:18,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 23:04:18,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 23:04:18,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 23:04:18,654 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 23:04:18,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 23:04:18,654 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 23:04:18,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 23:04:18,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 23:04:18,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 23:04:18,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 23:04:18,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 23:04:18,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 23:04:18,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 23:04:18,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-21 23:04:18,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 23:04:18,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 23:04:18,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 23:04:18,657 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-21 23:04:18,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 23:04:18,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 23:04:18,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 23:04:18,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 23:04:18,993 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 23:04:18,994 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 23:04:18,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-10-21 23:04:19,074 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceae0d7c5/42bf0757c44a4fbbaf7d3f6943275d3f/FLAGa9fc3d4d8 [2020-10-21 23:04:19,641 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 23:04:19,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.opt.i [2020-10-21 23:04:19,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceae0d7c5/42bf0757c44a4fbbaf7d3f6943275d3f/FLAGa9fc3d4d8 [2020-10-21 23:04:19,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ceae0d7c5/42bf0757c44a4fbbaf7d3f6943275d3f [2020-10-21 23:04:19,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 23:04:19,943 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 23:04:19,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 23:04:19,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 23:04:19,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 23:04:19,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:04:19" (1/1) ... [2020-10-21 23:04:19,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ded22e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:19, skipping insertion in model container [2020-10-21 23:04:19,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 11:04:19" (1/1) ... [2020-10-21 23:04:19,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 23:04:20,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 23:04:20,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:04:20,487 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 23:04:20,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 23:04:20,641 INFO L208 MainTranslator]: Completed translation [2020-10-21 23:04:20,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20 WrapperNode [2020-10-21 23:04:20,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 23:04:20,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 23:04:20,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 23:04:20,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 23:04:20,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,695 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 23:04:20,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 23:04:20,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 23:04:20,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 23:04:20,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (1/1) ... [2020-10-21 23:04:20,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 23:04:20,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 23:04:20,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 23:04:20,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 23:04:20,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (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 [2020-10-21 23:04:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 23:04:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 23:04:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 23:04:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 23:04:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 23:04:20,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 23:04:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 23:04:20,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 23:04:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-21 23:04:20,833 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-21 23:04:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 23:04:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 23:04:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 23:04:20,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 23:04:20,836 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 23:04:21,237 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 23:04:21,237 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 23:04:21,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:04:21 BoogieIcfgContainer [2020-10-21 23:04:21,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 23:04:21,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 23:04:21,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 23:04:21,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 23:04:21,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 11:04:19" (1/3) ... [2020-10-21 23:04:21,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d1c65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:04:21, skipping insertion in model container [2020-10-21 23:04:21,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 11:04:20" (2/3) ... [2020-10-21 23:04:21,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d1c65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 11:04:21, skipping insertion in model container [2020-10-21 23:04:21,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 11:04:21" (3/3) ... [2020-10-21 23:04:21,251 INFO L111 eAbstractionObserver]: Analyzing ICFG safe002_tso.opt.i [2020-10-21 23:04:21,264 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 23:04:21,264 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-21 23:04:21,273 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 23:04:21,274 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 23:04:21,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,303 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,303 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,304 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,304 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,305 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,305 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,306 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,306 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,306 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,307 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,307 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,312 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,313 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,313 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,313 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,320 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,320 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,321 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,321 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,325 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,325 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 23:04:21,332 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 23:04:21,344 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-21 23:04:21,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 23:04:21,365 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 23:04:21,366 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-21 23:04:21,366 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 23:04:21,366 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 23:04:21,366 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 23:04:21,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 23:04:21,366 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 23:04:21,378 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-21 23:04:21,379 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 23:04:21,381 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-10-21 23:04:21,383 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-10-21 23:04:21,428 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-10-21 23:04:21,428 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 23:04:21,437 INFO L80 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-21 23:04:21,440 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-10-21 23:04:23,091 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-10-21 23:04:23,202 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-10-21 23:04:23,228 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-10-21 23:04:23,229 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-10-21 23:04:23,238 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-21 23:04:23,289 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-21 23:04:23,291 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-21 23:04:23,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 23:04:23,323 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:23,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:23,325 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:23,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:23,333 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-10-21 23:04:23,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:23,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110275016] [2020-10-21 23:04:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:23,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:23,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110275016] [2020-10-21 23:04:23,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:23,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:04:23,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542224195] [2020-10-21 23:04:23,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 23:04:23,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:23,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 23:04:23,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:04:23,576 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-21 23:04:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:23,612 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-21 23:04:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 23:04:23,613 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-21 23:04:23,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:23,634 INFO L225 Difference]: With dead ends: 362 [2020-10-21 23:04:23,635 INFO L226 Difference]: Without dead ends: 298 [2020-10-21 23:04:23,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 23:04:23,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-21 23:04:23,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-21 23:04:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-21 23:04:23,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-21 23:04:23,718 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-21 23:04:23,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:23,720 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-21 23:04:23,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 23:04:23,720 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-21 23:04:23,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-21 23:04:23,722 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:23,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:23,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 23:04:23,722 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:23,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:23,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-10-21 23:04:23,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:23,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833967902] [2020-10-21 23:04:23,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:23,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833967902] [2020-10-21 23:04:23,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:23,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:04:23,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914015762] [2020-10-21 23:04:23,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:04:23,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:23,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:04:23,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:23,853 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-21 23:04:23,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:23,910 INFO L93 Difference]: Finished difference Result 330 states and 904 transitions. [2020-10-21 23:04:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:23,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-21 23:04:23,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:23,914 INFO L225 Difference]: With dead ends: 330 [2020-10-21 23:04:23,914 INFO L226 Difference]: Without dead ends: 266 [2020-10-21 23:04:23,915 INFO L677 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 [2020-10-21 23:04:23,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-21 23:04:23,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-21 23:04:23,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-21 23:04:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 744 transitions. [2020-10-21 23:04:23,941 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 744 transitions. Word has length 9 [2020-10-21 23:04:23,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:23,942 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 744 transitions. [2020-10-21 23:04:23,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:04:23,942 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 744 transitions. [2020-10-21 23:04:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:04:23,944 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:23,944 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:23,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 23:04:23,945 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:23,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:23,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1113237188, now seen corresponding path program 1 times [2020-10-21 23:04:23,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:23,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791154386] [2020-10-21 23:04:23,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791154386] [2020-10-21 23:04:24,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:24,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248678911] [2020-10-21 23:04:24,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:24,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:24,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:24,052 INFO L87 Difference]: Start difference. First operand 266 states and 744 transitions. Second operand 5 states. [2020-10-21 23:04:24,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,128 INFO L93 Difference]: Finished difference Result 282 states and 764 transitions. [2020-10-21 23:04:24,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-21 23:04:24,130 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-21 23:04:24,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,132 INFO L225 Difference]: With dead ends: 282 [2020-10-21 23:04:24,133 INFO L226 Difference]: Without dead ends: 250 [2020-10-21 23:04:24,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:04:24,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-21 23:04:24,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-10-21 23:04:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-21 23:04:24,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 692 transitions. [2020-10-21 23:04:24,148 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 692 transitions. Word has length 11 [2020-10-21 23:04:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,148 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 692 transitions. [2020-10-21 23:04:24,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:24,149 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 692 transitions. [2020-10-21 23:04:24,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-21 23:04:24,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 23:04:24,151 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,151 INFO L82 PathProgramCache]: Analyzing trace with hash 284483281, now seen corresponding path program 1 times [2020-10-21 23:04:24,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127986172] [2020-10-21 23:04:24,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127986172] [2020-10-21 23:04:24,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:24,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863909241] [2020-10-21 23:04:24,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:24,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:24,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:24,232 INFO L87 Difference]: Start difference. First operand 250 states and 692 transitions. Second operand 5 states. [2020-10-21 23:04:24,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,272 INFO L93 Difference]: Finished difference Result 306 states and 826 transitions. [2020-10-21 23:04:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:24,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-10-21 23:04:24,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,275 INFO L225 Difference]: With dead ends: 306 [2020-10-21 23:04:24,275 INFO L226 Difference]: Without dead ends: 170 [2020-10-21 23:04:24,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:04:24,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-10-21 23:04:24,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-10-21 23:04:24,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-10-21 23:04:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-10-21 23:04:24,283 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 11 [2020-10-21 23:04:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,284 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-10-21 23:04:24,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:24,284 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-10-21 23:04:24,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-21 23:04:24,286 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 23:04:24,286 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,287 INFO L82 PathProgramCache]: Analyzing trace with hash 150494398, now seen corresponding path program 1 times [2020-10-21 23:04:24,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667459309] [2020-10-21 23:04:24,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667459309] [2020-10-21 23:04:24,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:24,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789152673] [2020-10-21 23:04:24,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:04:24,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:04:24,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:24,343 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-10-21 23:04:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,373 INFO L93 Difference]: Finished difference Result 178 states and 434 transitions. [2020-10-21 23:04:24,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:24,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-21 23:04:24,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,376 INFO L225 Difference]: With dead ends: 178 [2020-10-21 23:04:24,376 INFO L226 Difference]: Without dead ends: 154 [2020-10-21 23:04:24,377 INFO L677 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 [2020-10-21 23:04:24,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-21 23:04:24,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-10-21 23:04:24,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-10-21 23:04:24,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 380 transitions. [2020-10-21 23:04:24,383 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 380 transitions. Word has length 12 [2020-10-21 23:04:24,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,384 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 380 transitions. [2020-10-21 23:04:24,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:04:24,384 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 380 transitions. [2020-10-21 23:04:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-21 23:04:24,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-21 23:04:24,386 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,386 INFO L82 PathProgramCache]: Analyzing trace with hash 370300484, now seen corresponding path program 1 times [2020-10-21 23:04:24,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885550791] [2020-10-21 23:04:24,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885550791] [2020-10-21 23:04:24,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 23:04:24,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014975069] [2020-10-21 23:04:24,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:04:24,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:04:24,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:24,440 INFO L87 Difference]: Start difference. First operand 154 states and 380 transitions. Second operand 4 states. [2020-10-21 23:04:24,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,456 INFO L93 Difference]: Finished difference Result 162 states and 388 transitions. [2020-10-21 23:04:24,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:24,457 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-21 23:04:24,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,458 INFO L225 Difference]: With dead ends: 162 [2020-10-21 23:04:24,458 INFO L226 Difference]: Without dead ends: 146 [2020-10-21 23:04:24,459 INFO L677 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 [2020-10-21 23:04:24,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-21 23:04:24,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-10-21 23:04:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-10-21 23:04:24,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 356 transitions. [2020-10-21 23:04:24,464 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 356 transitions. Word has length 13 [2020-10-21 23:04:24,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,465 INFO L481 AbstractCegarLoop]: Abstraction has 146 states and 356 transitions. [2020-10-21 23:04:24,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:04:24,465 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 356 transitions. [2020-10-21 23:04:24,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:04:24,466 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-21 23:04:24,467 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1988159974, now seen corresponding path program 1 times [2020-10-21 23:04:24,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228806599] [2020-10-21 23:04:24,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228806599] [2020-10-21 23:04:24,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:24,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280473852] [2020-10-21 23:04:24,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:24,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:24,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:24,518 INFO L87 Difference]: Start difference. First operand 146 states and 356 transitions. Second operand 5 states. [2020-10-21 23:04:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,549 INFO L93 Difference]: Finished difference Result 218 states and 530 transitions. [2020-10-21 23:04:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:24,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 23:04:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,550 INFO L225 Difference]: With dead ends: 218 [2020-10-21 23:04:24,551 INFO L226 Difference]: Without dead ends: 116 [2020-10-21 23:04:24,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:04:24,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-21 23:04:24,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-10-21 23:04:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-21 23:04:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 278 transitions. [2020-10-21 23:04:24,556 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 278 transitions. Word has length 14 [2020-10-21 23:04:24,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,556 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 278 transitions. [2020-10-21 23:04:24,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:24,556 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 278 transitions. [2020-10-21 23:04:24,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:04:24,557 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-21 23:04:24,558 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,558 INFO L82 PathProgramCache]: Analyzing trace with hash -1926444660, now seen corresponding path program 2 times [2020-10-21 23:04:24,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006930238] [2020-10-21 23:04:24,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006930238] [2020-10-21 23:04:24,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:04:24,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818436079] [2020-10-21 23:04:24,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:24,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:24,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:24,630 INFO L87 Difference]: Start difference. First operand 116 states and 278 transitions. Second operand 5 states. [2020-10-21 23:04:24,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,664 INFO L93 Difference]: Finished difference Result 152 states and 362 transitions. [2020-10-21 23:04:24,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:04:24,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-21 23:04:24,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,666 INFO L225 Difference]: With dead ends: 152 [2020-10-21 23:04:24,666 INFO L226 Difference]: Without dead ends: 80 [2020-10-21 23:04:24,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:04:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-21 23:04:24,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-21 23:04:24,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-21 23:04:24,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 176 transitions. [2020-10-21 23:04:24,670 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 176 transitions. Word has length 14 [2020-10-21 23:04:24,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,670 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 176 transitions. [2020-10-21 23:04:24,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 176 transitions. [2020-10-21 23:04:24,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-21 23:04:24,671 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,671 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-21 23:04:24,672 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1405608924, now seen corresponding path program 3 times [2020-10-21 23:04:24,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058470016] [2020-10-21 23:04:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058470016] [2020-10-21 23:04:24,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 23:04:24,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415906477] [2020-10-21 23:04:24,749 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 23:04:24,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 23:04:24,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 23:04:24,751 INFO L87 Difference]: Start difference. First operand 80 states and 176 transitions. Second operand 4 states. [2020-10-21 23:04:24,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,772 INFO L93 Difference]: Finished difference Result 91 states and 181 transitions. [2020-10-21 23:04:24,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-21 23:04:24,772 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-21 23:04:24,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,773 INFO L225 Difference]: With dead ends: 91 [2020-10-21 23:04:24,773 INFO L226 Difference]: Without dead ends: 69 [2020-10-21 23:04:24,774 INFO L677 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 [2020-10-21 23:04:24,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-21 23:04:24,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-21 23:04:24,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-21 23:04:24,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 138 transitions. [2020-10-21 23:04:24,777 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 138 transitions. Word has length 14 [2020-10-21 23:04:24,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,777 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 138 transitions. [2020-10-21 23:04:24,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 23:04:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 138 transitions. [2020-10-21 23:04:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-21 23:04:24,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-21 23:04:24,778 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,779 INFO L82 PathProgramCache]: Analyzing trace with hash -27259733, now seen corresponding path program 1 times [2020-10-21 23:04:24,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856261545] [2020-10-21 23:04:24,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856261545] [2020-10-21 23:04:24,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 23:04:24,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340455861] [2020-10-21 23:04:24,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 23:04:24,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 23:04:24,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-21 23:04:24,827 INFO L87 Difference]: Start difference. First operand 69 states and 138 transitions. Second operand 5 states. [2020-10-21 23:04:24,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:24,865 INFO L93 Difference]: Finished difference Result 65 states and 113 transitions. [2020-10-21 23:04:24,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 23:04:24,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-10-21 23:04:24,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:24,867 INFO L225 Difference]: With dead ends: 65 [2020-10-21 23:04:24,867 INFO L226 Difference]: Without dead ends: 50 [2020-10-21 23:04:24,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-21 23:04:24,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-21 23:04:24,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-21 23:04:24,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-21 23:04:24,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 83 transitions. [2020-10-21 23:04:24,870 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 83 transitions. Word has length 15 [2020-10-21 23:04:24,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:24,870 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 83 transitions. [2020-10-21 23:04:24,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 23:04:24,870 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 83 transitions. [2020-10-21 23:04:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-21 23:04:24,871 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:24,871 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:24,871 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-21 23:04:24,871 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:24,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:24,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1628487690, now seen corresponding path program 1 times [2020-10-21 23:04:24,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:24,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437359745] [2020-10-21 23:04:24,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:24,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437359745] [2020-10-21 23:04:24,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:24,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-21 23:04:24,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160222392] [2020-10-21 23:04:24,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 23:04:24,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:24,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 23:04:24,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-21 23:04:24,955 INFO L87 Difference]: Start difference. First operand 50 states and 83 transitions. Second operand 6 states. [2020-10-21 23:04:25,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:25,013 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2020-10-21 23:04:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 23:04:25,013 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-21 23:04:25,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:25,014 INFO L225 Difference]: With dead ends: 43 [2020-10-21 23:04:25,014 INFO L226 Difference]: Without dead ends: 37 [2020-10-21 23:04:25,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-21 23:04:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-21 23:04:25,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-21 23:04:25,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-21 23:04:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-10-21 23:04:25,017 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 16 [2020-10-21 23:04:25,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:25,019 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-10-21 23:04:25,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 23:04:25,019 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-10-21 23:04:25,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-21 23:04:25,020 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 23:04:25,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 23:04:25,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-21 23:04:25,021 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 23:04:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 23:04:25,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1397206146, now seen corresponding path program 1 times [2020-10-21 23:04:25,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 23:04:25,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749311458] [2020-10-21 23:04:25,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 23:04:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 23:04:25,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 23:04:25,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749311458] [2020-10-21 23:04:25,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 23:04:25,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-21 23:04:25,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276098194] [2020-10-21 23:04:25,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-21 23:04:25,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 23:04:25,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-21 23:04:25,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-21 23:04:25,211 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 10 states. [2020-10-21 23:04:25,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 23:04:25,405 INFO L93 Difference]: Finished difference Result 40 states and 59 transitions. [2020-10-21 23:04:25,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-21 23:04:25,405 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2020-10-21 23:04:25,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 23:04:25,406 INFO L225 Difference]: With dead ends: 40 [2020-10-21 23:04:25,406 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 23:04:25,406 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2020-10-21 23:04:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 23:04:25,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 23:04:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 23:04:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 23:04:25,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-10-21 23:04:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 23:04:25,407 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 23:04:25,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-21 23:04:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 23:04:25,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 23:04:25,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-21 23:04:25,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 11:04:25 BasicIcfg [2020-10-21 23:04:25,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 23:04:25,421 INFO L168 Benchmark]: Toolchain (without parser) took 5477.11 ms. Allocated memory was 144.7 MB in the beginning and 294.1 MB in the end (delta: 149.4 MB). Free memory was 98.0 MB in the beginning and 226.7 MB in the end (delta: -128.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:25,422 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 144.7 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-21 23:04:25,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.19 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 97.1 MB in the beginning and 155.9 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:25,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.93 ms. Allocated memory is still 201.3 MB. Free memory was 155.9 MB in the beginning and 153.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:25,426 INFO L168 Benchmark]: Boogie Preprocessor took 27.31 ms. Allocated memory is still 201.3 MB. Free memory was 153.7 MB in the beginning and 151.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:25,429 INFO L168 Benchmark]: RCFGBuilder took 479.81 ms. Allocated memory is still 201.3 MB. Free memory was 151.7 MB in the beginning and 127.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-10-21 23:04:25,433 INFO L168 Benchmark]: TraceAbstraction took 4171.21 ms. Allocated memory was 201.3 MB in the beginning and 294.1 MB in the end (delta: 92.8 MB). Free memory was 127.6 MB in the beginning and 226.7 MB in the end (delta: -99.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 23:04:25,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 144.7 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 699.19 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 97.1 MB in the beginning and 155.9 MB in the end (delta: -58.7 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 87.93 ms. Allocated memory is still 201.3 MB. Free memory was 155.9 MB in the beginning and 153.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.31 ms. Allocated memory is still 201.3 MB. Free memory was 153.7 MB in the beginning and 151.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.81 ms. Allocated memory is still 201.3 MB. Free memory was 151.7 MB in the beginning and 127.6 MB in the end (delta: 24.0 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4171.21 ms. Allocated memory was 201.3 MB in the beginning and 294.1 MB in the end (delta: 92.8 MB). Free memory was 127.6 MB in the beginning and 226.7 MB in the end (delta: -99.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 756 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 40 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 86 PlacesBefore, 32 PlacesAfterwards, 79 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 18 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2779 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 12, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 240 SDtfs, 265 SDslu, 435 SDs, 0 SdLazy, 276 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 6444 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...