/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 17:11:44,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 17:11:44,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 17:11:44,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 17:11:44,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 17:11:44,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 17:11:44,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 17:11:44,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 17:11:44,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 17:11:44,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 17:11:44,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 17:11:44,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 17:11:44,687 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 17:11:44,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 17:11:44,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 17:11:44,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 17:11:44,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 17:11:44,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 17:11:44,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 17:11:44,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 17:11:44,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 17:11:44,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 17:11:44,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 17:11:44,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 17:11:44,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 17:11:44,710 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 17:11:44,710 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 17:11:44,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 17:11:44,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 17:11:44,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 17:11:44,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 17:11:44,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 17:11:44,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 17:11:44,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 17:11:44,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 17:11:44,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 17:11:44,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 17:11:44,720 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 17:11:44,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 17:11:44,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 17:11:44,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 17:11:44,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-11-09 17:11:44,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 17:11:44,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 17:11:44,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 17:11:44,779 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 17:11:44,779 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 17:11:44,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 17:11:44,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 17:11:44,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 17:11:44,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 17:11:44,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 17:11:44,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 17:11:44,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 17:11:44,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 17:11:44,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 17:11:44,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 17:11:44,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 17:11:44,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 17:11:44,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 17:11:44,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 17:11:44,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 17:11:44,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 17:11:44,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 17:11:44,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 17:11:44,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 17:11:44,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 17:11:44,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 17:11:44,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 17:11:44,786 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 17:11:44,786 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 17:11:44,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 17:11:44,787 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 17:11:45,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 17:11:45,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 17:11:45,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 17:11:45,268 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 17:11:45,269 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 17:11:45,270 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-11-09 17:11:45,361 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf84a78c9/5bd2bfabc27b41f8869ebbc67062cba4/FLAG226077cef [2020-11-09 17:11:46,142 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 17:11:46,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_tso.oepc.i [2020-11-09 17:11:46,173 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf84a78c9/5bd2bfabc27b41f8869ebbc67062cba4/FLAG226077cef [2020-11-09 17:11:46,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf84a78c9/5bd2bfabc27b41f8869ebbc67062cba4 [2020-11-09 17:11:46,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 17:11:46,450 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 17:11:46,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 17:11:46,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 17:11:46,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 17:11:46,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:46" (1/1) ... [2020-11-09 17:11:46,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c519cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:46, skipping insertion in model container [2020-11-09 17:11:46,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:11:46" (1/1) ... [2020-11-09 17:11:46,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 17:11:46,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 17:11:46,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:11:46,994 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 17:11:47,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 17:11:47,198 INFO L208 MainTranslator]: Completed translation [2020-11-09 17:11:47,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47 WrapperNode [2020-11-09 17:11:47,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 17:11:47,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 17:11:47,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 17:11:47,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 17:11:47,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 17:11:47,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 17:11:47,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 17:11:47,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 17:11:47,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (1/1) ... [2020-11-09 17:11:47,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 17:11:47,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 17:11:47,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 17:11:47,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 17:11:47,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (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 [2020-11-09 17:11:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 17:11:47,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 17:11:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 17:11:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 17:11:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 17:11:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 17:11:47,381 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 17:11:47,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 17:11:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 17:11:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 17:11:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 17:11:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 17:11:47,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 17:11:47,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 17:11:47,384 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 17:11:48,033 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 17:11:48,034 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 17:11:48,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:48 BoogieIcfgContainer [2020-11-09 17:11:48,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 17:11:48,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 17:11:48,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 17:11:48,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 17:11:48,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:11:46" (1/3) ... [2020-11-09 17:11:48,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c9602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:48, skipping insertion in model container [2020-11-09 17:11:48,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:11:47" (2/3) ... [2020-11-09 17:11:48,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c9602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:11:48, skipping insertion in model container [2020-11-09 17:11:48,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:11:48" (3/3) ... [2020-11-09 17:11:48,056 INFO L111 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2020-11-09 17:11:48,078 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 17:11:48,078 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 17:11:48,084 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 17:11:48,085 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 17:11:48,132 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,133 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,133 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,134 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,134 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,134 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,135 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,137 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,137 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,137 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,138 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,138 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,139 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,141 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,141 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,142 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,146 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,147 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,148 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,159 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,173 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,173 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 17:11:48,176 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 17:11:48,193 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 17:11:48,238 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 17:11:48,239 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 17:11:48,239 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 17:11:48,239 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 17:11:48,239 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 17:11:48,239 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 17:11:48,239 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 17:11:48,239 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 17:11:48,261 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 17:11:48,262 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:11:48,266 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-09 17:11:48,269 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-09 17:11:48,358 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-09 17:11:48,359 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 17:11:48,366 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 17:11:48,371 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 17:11:50,182 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-11-09 17:11:50,456 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 17:11:50,629 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-11-09 17:11:51,241 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-11-09 17:11:52,229 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:11:52,351 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:11:52,586 WARN L194 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 17:11:52,697 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 17:11:52,738 INFO L131 LiptonReduction]: Checked pairs total: 2810 [2020-11-09 17:11:52,739 INFO L133 LiptonReduction]: Total number of compositions: 74 [2020-11-09 17:11:52,747 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-11-09 17:11:52,770 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-11-09 17:11:52,772 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-11-09 17:11:52,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 17:11:52,779 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:11:52,780 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:11:52,780 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:11:52,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:11:52,786 INFO L82 PathProgramCache]: Analyzing trace with hash -831263322, now seen corresponding path program 1 times [2020-11-09 17:11:52,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:11:52,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023971386] [2020-11-09 17:11:52,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:11:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:11:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:11:53,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023971386] [2020-11-09 17:11:53,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:11:53,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 17:11:53,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [383612102] [2020-11-09 17:11:53,043 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:11:53,046 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:11:53,060 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 17:11:53,061 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:11:53,065 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:11:53,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 17:11:53,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:11:53,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 17:11:53,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 17:11:53,084 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-11-09 17:11:53,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:11:53,116 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-11-09 17:11:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 17:11:53,118 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 17:11:53,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:11:53,131 INFO L225 Difference]: With dead ends: 214 [2020-11-09 17:11:53,131 INFO L226 Difference]: Without dead ends: 166 [2020-11-09 17:11:53,133 INFO L677 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 [2020-11-09 17:11:53,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-11-09 17:11:53,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-11-09 17:11:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-11-09 17:11:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-11-09 17:11:53,230 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-11-09 17:11:53,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:11:53,232 INFO L481 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-11-09 17:11:53,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 17:11:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-11-09 17:11:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 17:11:53,234 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:11:53,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:11:53,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 17:11:53,235 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:11:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:11:53,238 INFO L82 PathProgramCache]: Analyzing trace with hash 639961, now seen corresponding path program 1 times [2020-11-09 17:11:53,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:11:53,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020877752] [2020-11-09 17:11:53,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:11:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:11:53,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:11:53,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020877752] [2020-11-09 17:11:53,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:11:53,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:11:53,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [539649805] [2020-11-09 17:11:53,358 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:11:53,359 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:11:53,361 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 11 transitions. [2020-11-09 17:11:53,361 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:11:53,372 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:11:53,373 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:11:53,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:11:53,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:11:53,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:11:53,375 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-11-09 17:11:53,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:11:53,401 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-11-09 17:11:53,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:11:53,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 17:11:53,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:11:53,404 INFO L225 Difference]: With dead ends: 202 [2020-11-09 17:11:53,404 INFO L226 Difference]: Without dead ends: 130 [2020-11-09 17:11:53,405 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 [2020-11-09 17:11:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-09 17:11:53,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-11-09 17:11:53,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-09 17:11:53,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-11-09 17:11:53,415 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-11-09 17:11:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:11:53,415 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-11-09 17:11:53,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:11:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-11-09 17:11:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 17:11:53,417 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:11:53,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:11:53,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 17:11:53,417 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:11:53,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:11:53,418 INFO L82 PathProgramCache]: Analyzing trace with hash 19828348, now seen corresponding path program 1 times [2020-11-09 17:11:53,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:11:53,420 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345812191] [2020-11-09 17:11:53,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:11:53,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:11:53,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:11:53,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345812191] [2020-11-09 17:11:53,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:11:53,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 17:11:53,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1611209034] [2020-11-09 17:11:53,525 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:11:53,526 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:11:53,528 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 18 transitions. [2020-11-09 17:11:53,528 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:11:53,554 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:11:53,593 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 17:11:53,639 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [1561#(not (= 3 ~__unbuffered_cnt~0))] [2020-11-09 17:11:53,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 17:11:53,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:11:53,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 17:11:53,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:11:53,641 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 5 states. [2020-11-09 17:11:53,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:11:53,763 INFO L93 Difference]: Finished difference Result 121 states and 272 transitions. [2020-11-09 17:11:53,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:11:53,763 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-09 17:11:53,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:11:53,764 INFO L225 Difference]: With dead ends: 121 [2020-11-09 17:11:53,765 INFO L226 Difference]: Without dead ends: 85 [2020-11-09 17:11:53,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:11:53,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-09 17:11:53,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-11-09 17:11:53,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-09 17:11:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-11-09 17:11:53,771 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 10 [2020-11-09 17:11:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:11:53,772 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-11-09 17:11:53,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 17:11:53,772 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-11-09 17:11:53,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 17:11:53,774 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:11:53,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:11:53,774 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 17:11:53,775 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:11:53,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:11:53,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1088953398, now seen corresponding path program 1 times [2020-11-09 17:11:53,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:11:53,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836360223] [2020-11-09 17:11:53,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:11:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:11:53,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:11:53,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836360223] [2020-11-09 17:11:53,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:11:53,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 17:11:53,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [285500322] [2020-11-09 17:11:53,918 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:11:53,920 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:11:53,921 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-11-09 17:11:53,922 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:11:53,935 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:11:53,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 17:11:53,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:11:53,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 17:11:53,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 17:11:53,937 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-11-09 17:11:54,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:11:54,024 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-11-09 17:11:54,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 17:11:54,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-11-09 17:11:54,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:11:54,026 INFO L225 Difference]: With dead ends: 80 [2020-11-09 17:11:54,026 INFO L226 Difference]: Without dead ends: 72 [2020-11-09 17:11:54,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 17:11:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-09 17:11:54,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-11-09 17:11:54,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-09 17:11:54,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-11-09 17:11:54,036 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-11-09 17:11:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:11:54,037 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-11-09 17:11:54,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 17:11:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-11-09 17:11:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 17:11:54,038 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:11:54,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:11:54,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 17:11:54,039 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:11:54,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:11:54,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1996779088, now seen corresponding path program 1 times [2020-11-09 17:11:54,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:11:54,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719328763] [2020-11-09 17:11:54,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:11:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:11:54,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:11:54,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719328763] [2020-11-09 17:11:54,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:11:54,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:11:54,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1831815355] [2020-11-09 17:11:54,132 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:11:54,134 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:11:54,139 INFO L252 McrAutomatonBuilder]: Finished intersection with 36 states and 56 transitions. [2020-11-09 17:11:54,139 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:11:54,226 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:11:54,227 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:11:54,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:11:54,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:11:54,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:11:54,228 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-11-09 17:11:54,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:11:54,246 INFO L93 Difference]: Finished difference Result 85 states and 168 transitions. [2020-11-09 17:11:54,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:11:54,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-09 17:11:54,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:11:54,247 INFO L225 Difference]: With dead ends: 85 [2020-11-09 17:11:54,247 INFO L226 Difference]: Without dead ends: 33 [2020-11-09 17:11:54,248 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:11:54,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-09 17:11:54,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-09 17:11:54,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-09 17:11:54,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-11-09 17:11:54,250 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 16 [2020-11-09 17:11:54,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:11:54,250 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-11-09 17:11:54,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:11:54,251 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-11-09 17:11:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 17:11:54,251 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 17:11:54,251 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 17:11:54,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 17:11:54,252 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 17:11:54,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 17:11:54,252 INFO L82 PathProgramCache]: Analyzing trace with hash 242478162, now seen corresponding path program 2 times [2020-11-09 17:11:54,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 17:11:54,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020648779] [2020-11-09 17:11:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 17:11:54,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 17:11:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 17:11:54,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020648779] [2020-11-09 17:11:54,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 17:11:54,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 17:11:54,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [990771605] [2020-11-09 17:11:54,318 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 17:11:54,321 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 17:11:54,329 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 24 transitions. [2020-11-09 17:11:54,329 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 17:11:54,354 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 17:11:54,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 17:11:54,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 17:11:54,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 17:11:54,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 17:11:54,355 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-11-09 17:11:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 17:11:54,376 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-11-09 17:11:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 17:11:54,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-09 17:11:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 17:11:54,376 INFO L225 Difference]: With dead ends: 32 [2020-11-09 17:11:54,376 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 17:11:54,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 17:11:54,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 17:11:54,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 17:11:54,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 17:11:54,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 17:11:54,379 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-09 17:11:54,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 17:11:54,379 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 17:11:54,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 17:11:54,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 17:11:54,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 17:11:54,380 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 17:11:54,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:11:54 BasicIcfg [2020-11-09 17:11:54,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 17:11:54,391 INFO L168 Benchmark]: Toolchain (without parser) took 7942.21 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 128.1 MB in the beginning and 101.2 MB in the end (delta: 26.9 MB). Peak memory consumption was 58.6 MB. Max. memory is 8.0 GB. [2020-11-09 17:11:54,391 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 125.8 MB. Free memory was 101.5 MB in the beginning and 101.4 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 17:11:54,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.30 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 129.8 MB in the end (delta: -2.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:11:54,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.95 ms. Allocated memory is still 154.1 MB. Free memory was 129.8 MB in the beginning and 127.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-11-09 17:11:54,397 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 126.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:11:54,397 INFO L168 Benchmark]: RCFGBuilder took 757.17 ms. Allocated memory is still 154.1 MB. Free memory was 126.8 MB in the beginning and 104.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 17:11:54,398 INFO L168 Benchmark]: TraceAbstraction took 6341.67 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 104.3 MB in the beginning and 101.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 34.4 MB. Max. memory is 8.0 GB. [2020-11-09 17:11:54,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 125.8 MB. Free memory was 101.5 MB in the beginning and 101.4 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 747.30 ms. Allocated memory is still 154.1 MB. Free memory was 127.4 MB in the beginning and 129.8 MB in the end (delta: -2.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 52.95 ms. Allocated memory is still 154.1 MB. Free memory was 129.8 MB in the beginning and 127.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 154.1 MB. Free memory was 127.8 MB in the beginning and 126.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 757.17 ms. Allocated memory is still 154.1 MB. Free memory was 126.8 MB in the beginning and 104.7 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6341.67 ms. Allocated memory was 154.1 MB in the beginning and 185.6 MB in the end (delta: 31.5 MB). Free memory was 104.3 MB in the beginning and 101.2 MB in the end (delta: 3.1 MB). Peak memory consumption was 34.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 46 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.4s, 85 PlacesBefore, 30 PlacesAfterwards, 78 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 74 TotalNumberOfCompositions, 2810 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, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.5s, HoareTripleCheckerStatistics: 107 SDtfs, 100 SDslu, 145 SDs, 0 SdLazy, 81 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 2280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...