/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/safe000_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 16:59:26,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 16:59:26,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 16:59:26,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 16:59:26,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 16:59:26,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 16:59:26,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 16:59:26,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 16:59:26,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 16:59:26,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 16:59:26,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 16:59:26,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 16:59:26,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 16:59:26,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 16:59:26,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 16:59:26,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 16:59:26,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 16:59:26,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 16:59:26,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 16:59:26,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 16:59:26,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 16:59:26,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 16:59:26,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 16:59:26,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 16:59:26,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 16:59:26,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 16:59:26,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 16:59:26,312 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 16:59:26,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 16:59:26,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 16:59:26,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 16:59:26,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 16:59:26,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 16:59:26,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 16:59:26,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 16:59:26,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 16:59:26,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 16:59:26,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 16:59:26,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 16:59:26,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 16:59:26,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 16:59:26,324 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 16:59:26,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 16:59:26,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 16:59:26,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 16:59:26,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 16:59:26,383 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 16:59:26,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 16:59:26,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 16:59:26,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 16:59:26,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 16:59:26,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 16:59:26,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 16:59:26,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 16:59:26,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 16:59:26,386 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 16:59:26,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 16:59:26,386 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 16:59:26,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 16:59:26,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 16:59:26,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 16:59:26,387 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 16:59:26,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 16:59:26,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 16:59:26,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 16:59:26,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 16:59:26,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 16:59:26,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 16:59:26,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 16:59:26,389 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 16:59:26,389 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 16:59:26,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 16:59:26,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 16:59:26,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 16:59:26,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 16:59:26,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 16:59:26,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 16:59:26,886 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 16:59:26,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-11-09 16:59:26,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb5ceee8/7e4cfadb15004e7f93ce8b7c21f11ef9/FLAGe96e1c1c1 [2020-11-09 16:59:27,807 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 16:59:27,807 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.oepc.i [2020-11-09 16:59:27,833 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb5ceee8/7e4cfadb15004e7f93ce8b7c21f11ef9/FLAGe96e1c1c1 [2020-11-09 16:59:28,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bbb5ceee8/7e4cfadb15004e7f93ce8b7c21f11ef9 [2020-11-09 16:59:28,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 16:59:28,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 16:59:28,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 16:59:28,069 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 16:59:28,073 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 16:59:28,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d4a5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28, skipping insertion in model container [2020-11-09 16:59:28,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 16:59:28,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 16:59:28,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:59:28,603 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 16:59:28,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 16:59:28,862 INFO L208 MainTranslator]: Completed translation [2020-11-09 16:59:28,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28 WrapperNode [2020-11-09 16:59:28,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 16:59:28,866 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 16:59:28,866 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 16:59:28,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 16:59:28,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 16:59:28,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 16:59:28,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 16:59:28,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 16:59:28,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (1/1) ... [2020-11-09 16:59:28,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 16:59:28,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 16:59:28,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 16:59:28,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 16:59:28,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (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 16:59:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 16:59:29,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 16:59:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 16:59:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 16:59:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 16:59:29,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 16:59:29,031 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 16:59:29,031 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 16:59:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 16:59:29,032 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 16:59:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 16:59:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 16:59:29,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 16:59:29,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 16:59:29,034 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 16:59:29,561 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 16:59:29,561 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 16:59:29,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:59:29 BoogieIcfgContainer [2020-11-09 16:59:29,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 16:59:29,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 16:59:29,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 16:59:29,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 16:59:29,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:59:28" (1/3) ... [2020-11-09 16:59:29,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf4f25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:59:29, skipping insertion in model container [2020-11-09 16:59:29,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:59:28" (2/3) ... [2020-11-09 16:59:29,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bf4f25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:59:29, skipping insertion in model container [2020-11-09 16:59:29,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:59:29" (3/3) ... [2020-11-09 16:59:29,572 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_pso.oepc.i [2020-11-09 16:59:29,589 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 16:59:29,589 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 16:59:29,593 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 16:59:29,594 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 16:59:29,627 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,628 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,628 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,629 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,629 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,630 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,630 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,631 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,631 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,632 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,632 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,632 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,633 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,633 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,634 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,634 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,634 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,635 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,636 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,638 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,639 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,639 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,645 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,645 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,646 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,646 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,650 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,650 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 16:59:29,653 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 16:59:29,665 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 16:59:29,690 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 16:59:29,690 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 16:59:29,690 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 16:59:29,690 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 16:59:29,690 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 16:59:29,690 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 16:59:29,691 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 16:59:29,691 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 16:59:29,703 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 16:59:29,704 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 16:59:29,707 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-09 16:59:29,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-09 16:59:29,756 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-09 16:59:29,756 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 16:59:29,761 INFO L84 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. [2020-11-09 16:59:29,765 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-09 16:59:33,500 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 16:59:33,618 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 16:59:33,843 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-09 16:59:33,957 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-09 16:59:33,985 INFO L131 LiptonReduction]: Checked pairs total: 2779 [2020-11-09 16:59:33,985 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-11-09 16:59:33,993 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-09 16:59:34,024 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-09 16:59:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-09 16:59:34,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 16:59:34,034 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:59:34,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:59:34,035 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:59:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:59:34,042 INFO L82 PathProgramCache]: Analyzing trace with hash -460323677, now seen corresponding path program 1 times [2020-11-09 16:59:34,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:59:34,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112864921] [2020-11-09 16:59:34,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:59:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:59:34,327 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 16:59:34,328 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112864921] [2020-11-09 16:59:34,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:59:34,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:59:34,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1709397253] [2020-11-09 16:59:34,335 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:59:34,340 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:59:34,352 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-11-09 16:59:34,352 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:59:34,357 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:59:34,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-09 16:59:34,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:59:34,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-09 16:59:34,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-09 16:59:34,376 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-09 16:59:34,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:59:34,424 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-09 16:59:34,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-09 16:59:34,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-09 16:59:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:59:34,461 INFO L225 Difference]: With dead ends: 362 [2020-11-09 16:59:34,461 INFO L226 Difference]: Without dead ends: 298 [2020-11-09 16:59:34,463 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 [2020-11-09 16:59:34,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-09 16:59:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-09 16:59:34,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-09 16:59:34,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-09 16:59:34,639 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-09 16:59:34,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:59:34,640 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-09 16:59:34,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-09 16:59:34,640 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-09 16:59:34,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 16:59:34,643 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:59:34,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:59:34,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 16:59:34,644 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:59:34,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:59:34,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1385173359, now seen corresponding path program 1 times [2020-11-09 16:59:34,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:59:34,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261770514] [2020-11-09 16:59:34,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:59:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:59:34,866 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 16:59:34,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261770514] [2020-11-09 16:59:34,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:59:34,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:59:34,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [59083994] [2020-11-09 16:59:34,868 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:59:34,870 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:59:34,874 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-11-09 16:59:34,874 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:59:34,875 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:59:34,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 16:59:34,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:59:34,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 16:59:34,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 16:59:34,878 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-09 16:59:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:59:34,953 INFO L93 Difference]: Finished difference Result 330 states and 904 transitions. [2020-11-09 16:59:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 16:59:34,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-09 16:59:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:59:34,957 INFO L225 Difference]: With dead ends: 330 [2020-11-09 16:59:34,958 INFO L226 Difference]: Without dead ends: 266 [2020-11-09 16:59:34,959 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 [2020-11-09 16:59:34,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-11-09 16:59:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-11-09 16:59:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-09 16:59:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 744 transitions. [2020-11-09 16:59:34,978 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 744 transitions. Word has length 9 [2020-11-09 16:59:34,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:59:34,979 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 744 transitions. [2020-11-09 16:59:34,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 16:59:34,979 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 744 transitions. [2020-11-09 16:59:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 16:59:34,982 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:59:34,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:59:34,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 16:59:34,982 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:59:34,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:59:34,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1113237188, now seen corresponding path program 1 times [2020-11-09 16:59:34,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:59:34,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934743231] [2020-11-09 16:59:34,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:59:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:59:35,058 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 16:59:35,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934743231] [2020-11-09 16:59:35,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:59:35,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 16:59:35,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [92976904] [2020-11-09 16:59:35,060 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:59:35,061 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:59:35,064 INFO L252 McrAutomatonBuilder]: Finished intersection with 18 states and 23 transitions. [2020-11-09 16:59:35,064 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:59:35,146 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:59:35,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 16:59:35,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:59:35,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 16:59:35,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:59:35,148 INFO L87 Difference]: Start difference. First operand 266 states and 744 transitions. Second operand 5 states. [2020-11-09 16:59:35,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:59:35,235 INFO L93 Difference]: Finished difference Result 282 states and 764 transitions. [2020-11-09 16:59:35,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 16:59:35,235 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 16:59:35,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:59:35,239 INFO L225 Difference]: With dead ends: 282 [2020-11-09 16:59:35,239 INFO L226 Difference]: Without dead ends: 250 [2020-11-09 16:59:35,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-09 16:59:35,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-11-09 16:59:35,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-11-09 16:59:35,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-09 16:59:35,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 692 transitions. [2020-11-09 16:59:35,255 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 692 transitions. Word has length 11 [2020-11-09 16:59:35,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:59:35,255 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 692 transitions. [2020-11-09 16:59:35,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 16:59:35,255 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 692 transitions. [2020-11-09 16:59:35,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 16:59:35,257 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:59:35,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:59:35,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 16:59:35,258 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:59:35,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:59:35,259 INFO L82 PathProgramCache]: Analyzing trace with hash 284483281, now seen corresponding path program 1 times [2020-11-09 16:59:35,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:59:35,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691050090] [2020-11-09 16:59:35,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:59:35,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:59:35,329 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 16:59:35,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691050090] [2020-11-09 16:59:35,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:59:35,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 16:59:35,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [230997978] [2020-11-09 16:59:35,331 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:59:35,332 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:59:35,334 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 15 transitions. [2020-11-09 16:59:35,334 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:59:35,340 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:59:35,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 16:59:35,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:59:35,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 16:59:35,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:59:35,341 INFO L87 Difference]: Start difference. First operand 250 states and 692 transitions. Second operand 5 states. [2020-11-09 16:59:35,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:59:35,392 INFO L93 Difference]: Finished difference Result 306 states and 826 transitions. [2020-11-09 16:59:35,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 16:59:35,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-11-09 16:59:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:59:35,395 INFO L225 Difference]: With dead ends: 306 [2020-11-09 16:59:35,395 INFO L226 Difference]: Without dead ends: 170 [2020-11-09 16:59:35,395 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 [2020-11-09 16:59:35,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-09 16:59:35,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-11-09 16:59:35,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-11-09 16:59:35,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 432 transitions. [2020-11-09 16:59:35,403 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 432 transitions. Word has length 11 [2020-11-09 16:59:35,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:59:35,404 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 432 transitions. [2020-11-09 16:59:35,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 16:59:35,404 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 432 transitions. [2020-11-09 16:59:35,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 16:59:35,405 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:59:35,406 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:59:35,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 16:59:35,406 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:59:35,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:59:35,407 INFO L82 PathProgramCache]: Analyzing trace with hash 150494398, now seen corresponding path program 1 times [2020-11-09 16:59:35,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:59:35,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939434294] [2020-11-09 16:59:35,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:59:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:59:35,461 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 16:59:35,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939434294] [2020-11-09 16:59:35,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:59:35,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 16:59:35,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1251970302] [2020-11-09 16:59:35,462 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:59:35,464 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:59:35,466 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-11-09 16:59:35,466 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:59:35,507 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:59:35,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 16:59:35,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:59:35,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 16:59:35,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 16:59:35,509 INFO L87 Difference]: Start difference. First operand 170 states and 432 transitions. Second operand 4 states. [2020-11-09 16:59:35,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:59:35,538 INFO L93 Difference]: Finished difference Result 182 states and 446 transitions. [2020-11-09 16:59:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 16:59:35,539 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-09 16:59:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:59:35,541 INFO L225 Difference]: With dead ends: 182 [2020-11-09 16:59:35,541 INFO L226 Difference]: Without dead ends: 158 [2020-11-09 16:59:35,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 16:59:35,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-11-09 16:59:35,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-11-09 16:59:35,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-11-09 16:59:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 394 transitions. [2020-11-09 16:59:35,549 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 394 transitions. Word has length 12 [2020-11-09 16:59:35,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:59:35,550 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 394 transitions. [2020-11-09 16:59:35,550 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 16:59:35,550 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 394 transitions. [2020-11-09 16:59:35,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 16:59:35,553 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:59:35,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:59:35,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 16:59:35,554 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:59:35,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:59:35,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1736979236, now seen corresponding path program 1 times [2020-11-09 16:59:35,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:59:35,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077665467] [2020-11-09 16:59:35,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:59:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:59:35,617 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 16:59:35,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077665467] [2020-11-09 16:59:35,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:59:35,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 16:59:35,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1416137877] [2020-11-09 16:59:35,618 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:59:35,620 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:59:35,624 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 48 transitions. [2020-11-09 16:59:35,624 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:59:35,714 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:59:35,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 16:59:35,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:59:35,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 16:59:35,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:59:35,716 INFO L87 Difference]: Start difference. First operand 158 states and 394 transitions. Second operand 5 states. [2020-11-09 16:59:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:59:35,764 INFO L93 Difference]: Finished difference Result 212 states and 513 transitions. [2020-11-09 16:59:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 16:59:35,764 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-09 16:59:35,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:59:35,765 INFO L225 Difference]: With dead ends: 212 [2020-11-09 16:59:35,766 INFO L226 Difference]: Without dead ends: 98 [2020-11-09 16:59:35,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-09 16:59:35,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-09 16:59:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-11-09 16:59:35,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-09 16:59:35,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 218 transitions. [2020-11-09 16:59:35,771 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 218 transitions. Word has length 13 [2020-11-09 16:59:35,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:59:35,771 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 218 transitions. [2020-11-09 16:59:35,771 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 16:59:35,772 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 218 transitions. [2020-11-09 16:59:35,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 16:59:35,772 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 16:59:35,772 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 16:59:35,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 16:59:35,773 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 16:59:35,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 16:59:35,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1116620912, now seen corresponding path program 1 times [2020-11-09 16:59:35,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 16:59:35,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272125007] [2020-11-09 16:59:35,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 16:59:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 16:59:35,823 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 16:59:35,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272125007] [2020-11-09 16:59:35,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 16:59:35,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 16:59:35,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [141795554] [2020-11-09 16:59:35,824 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 16:59:35,826 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 16:59:35,831 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 48 transitions. [2020-11-09 16:59:35,831 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 16:59:35,955 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 16:59:35,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 16:59:35,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 16:59:35,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 16:59:35,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-09 16:59:35,957 INFO L87 Difference]: Start difference. First operand 98 states and 218 transitions. Second operand 5 states. [2020-11-09 16:59:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 16:59:35,995 INFO L93 Difference]: Finished difference Result 86 states and 186 transitions. [2020-11-09 16:59:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 16:59:35,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 16:59:35,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 16:59:35,997 INFO L225 Difference]: With dead ends: 86 [2020-11-09 16:59:35,997 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 16:59:35,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-09 16:59:35,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 16:59:35,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 16:59:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 16:59:36,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 16:59:36,000 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-09 16:59:36,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 16:59:36,001 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 16:59:36,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 16:59:36,001 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 16:59:36,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 16:59:36,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 16:59:36,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:59:36 BasicIcfg [2020-11-09 16:59:36,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 16:59:36,008 INFO L168 Benchmark]: Toolchain (without parser) took 7946.59 ms. Allocated memory was 153.1 MB in the beginning and 226.5 MB in the end (delta: 73.4 MB). Free memory was 126.7 MB in the beginning and 193.2 MB in the end (delta: -66.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. [2020-11-09 16:59:36,015 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 125.9 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 16:59:36,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.29 ms. Allocated memory is still 153.1 MB. Free memory was 125.9 MB in the beginning and 130.4 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. [2020-11-09 16:59:36,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.40 ms. Allocated memory is still 153.1 MB. Free memory was 130.0 MB in the beginning and 128.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 16:59:36,017 INFO L168 Benchmark]: Boogie Preprocessor took 32.56 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 126.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 16:59:36,017 INFO L168 Benchmark]: RCFGBuilder took 607.36 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 104.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-09 16:59:36,018 INFO L168 Benchmark]: TraceAbstraction took 6441.01 ms. Allocated memory was 153.1 MB in the beginning and 226.5 MB in the end (delta: 73.4 MB). Free memory was 104.3 MB in the beginning and 193.2 MB in the end (delta: -89.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 16:59:36,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 153.1 MB. Free memory was 126.0 MB in the beginning and 125.9 MB in the end (delta: 89.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 795.29 ms. Allocated memory is still 153.1 MB. Free memory was 125.9 MB in the beginning and 130.4 MB in the end (delta: -4.5 MB). Peak memory consumption was 30.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 56.40 ms. Allocated memory is still 153.1 MB. Free memory was 130.0 MB in the beginning and 128.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.56 ms. Allocated memory is still 153.1 MB. Free memory was 128.4 MB in the beginning and 126.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 607.36 ms. Allocated memory is still 153.1 MB. Free memory was 126.8 MB in the beginning and 104.8 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6441.01 ms. Allocated memory was 153.1 MB in the beginning and 226.5 MB in the end (delta: 73.4 MB). Free memory was 104.3 MB in the beginning and 193.2 MB in the end (delta: -89.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 761 VarBasedMoverChecksPositive, 19 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 42 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 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: 6.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 146 SDtfs, 142 SDslu, 214 SDs, 0 SdLazy, 86 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 2857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...