/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 10:10:03,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 10:10:03,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 10:10:03,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-05 10:10:03,614 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-05 10:10:03,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-05 10:10:03,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-05 10:10:03,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-05 10:10:03,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-05 10:10:03,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-05 10:10:03,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-05 10:10:03,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-05 10:10:03,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 10:10:03,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 10:10:03,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 10:10:03,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 10:10:03,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 10:10:03,641 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 10:10:03,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 10:10:03,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 10:10:03,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 10:10:03,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 10:10:03,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 10:10:03,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 10:10:03,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 10:10:03,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 10:10:03,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 10:10:03,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 10:10:03,674 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf [2021-06-05 10:10:03,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 10:10:03,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 10:10:03,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 10:10:03,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 10:10:03,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 10:10:03,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 10:10:03,712 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 10:10:03,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 10:10:03,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 10:10:03,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 10:10:03,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 10:10:03,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 10:10:03,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 10:10:03,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 10:10:03,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 10:10:03,715 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 10:10:03,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 10:10:03,715 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 10:10:03,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 10:10:03,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 10:10:03,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 10:10:03,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 10:10:03,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 10:10:03,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 10:10:03,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 10:10:03,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 10:10:03,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 10:10:03,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 10:10:03,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 10:10:03,717 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 10:10:03,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 10:10:03,717 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 10:10:03,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 10:10:04,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 10:10:04,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 10:10:04,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 10:10:04,082 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 10:10:04,082 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 10:10:04,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-06-05 10:10:04,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f8d31d7/1f072a2a8316455aa22383c3076ad5f3/FLAGe4567be19 [2021-06-05 10:10:04,656 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 10:10:04,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i [2021-06-05 10:10:04,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f8d31d7/1f072a2a8316455aa22383c3076ad5f3/FLAGe4567be19 [2021-06-05 10:10:05,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02f8d31d7/1f072a2a8316455aa22383c3076ad5f3 [2021-06-05 10:10:05,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 10:10:05,020 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 10:10:05,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 10:10:05,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 10:10:05,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 10:10:05,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37089047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05, skipping insertion in model container [2021-06-05 10:10:05,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 10:10:05,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 10:10:05,219 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i[949,962] [2021-06-05 10:10:05,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:10:05,424 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 10:10:05,435 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe023_tso.opt.i[949,962] [2021-06-05 10:10:05,476 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 10:10:05,549 INFO L208 MainTranslator]: Completed translation [2021-06-05 10:10:05,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05 WrapperNode [2021-06-05 10:10:05,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 10:10:05,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 10:10:05,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 10:10:05,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 10:10:05,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 10:10:05,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 10:10:05,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 10:10:05,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 10:10:05,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (1/1) ... [2021-06-05 10:10:05,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 10:10:05,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 10:10:05,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 10:10:05,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 10:10:05,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (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 [2021-06-05 10:10:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 10:10:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-06-05 10:10:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 10:10:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 10:10:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-06-05 10:10:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-06-05 10:10:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-06-05 10:10:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-06-05 10:10:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-06-05 10:10:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-06-05 10:10:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 10:10:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-06-05 10:10:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 10:10:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 10:10:05,740 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 10:10:06,214 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 10:10:06,214 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-06-05 10:10:06,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:10:06 BoogieIcfgContainer [2021-06-05 10:10:06,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 10:10:06,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 10:10:06,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 10:10:06,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 10:10:06,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 10:10:05" (1/3) ... [2021-06-05 10:10:06,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d5d8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:10:06, skipping insertion in model container [2021-06-05 10:10:06,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 10:10:05" (2/3) ... [2021-06-05 10:10:06,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d5d8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 10:10:06, skipping insertion in model container [2021-06-05 10:10:06,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 10:10:06" (3/3) ... [2021-06-05 10:10:06,224 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2021-06-05 10:10:06,230 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 10:10:06,230 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 10:10:06,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 10:10:06,231 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 10:10:06,265 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,265 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,265 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,265 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,265 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,266 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,266 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,268 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,269 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,270 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,270 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,272 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,272 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,272 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,278 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,279 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,280 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,280 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,280 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,280 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,281 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,281 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,282 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,282 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,284 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,285 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,285 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,289 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,290 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,295 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,295 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 10:10:06,300 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-05 10:10:06,318 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-05 10:10:06,349 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 10:10:06,349 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 10:10:06,349 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 10:10:06,349 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 10:10:06,349 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 10:10:06,349 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 10:10:06,349 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 10:10:06,350 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 10:10:06,366 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 84 transitions, 183 flow [2021-06-05 10:10:06,914 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:06,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:06,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-06-05 10:10:07,000 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:07,001 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:07,001 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:07,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:07,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1943773822, now seen corresponding path program 1 times [2021-06-05 10:10:07,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:07,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511588646] [2021-06-05 10:10:07,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:07,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:07,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:07,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511588646] [2021-06-05 10:10:07,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511588646] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:07,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:07,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:07,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665784152] [2021-06-05 10:10:07,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:07,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:07,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:07,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:07,585 INFO L87 Difference]: Start difference. First operand has 9332 states, 9330 states have (on average 3.562379421221865) internal successors, (33237), 9331 states have internal predecessors, (33237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:08,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:08,155 INFO L93 Difference]: Finished difference Result 19048 states and 65652 transitions. [2021-06-05 10:10:08,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:10:08,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-06-05 10:10:08,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:08,310 INFO L225 Difference]: With dead ends: 19048 [2021-06-05 10:10:08,310 INFO L226 Difference]: Without dead ends: 5758 [2021-06-05 10:10:08,311 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 321.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:10:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5758 states. [2021-06-05 10:10:08,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5758 to 4708. [2021-06-05 10:10:08,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4708 states, 4707 states have (on average 3.2345442957297643) internal successors, (15225), 4707 states have internal predecessors, (15225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4708 states to 4708 states and 15225 transitions. [2021-06-05 10:10:08,608 INFO L78 Accepts]: Start accepts. Automaton has 4708 states and 15225 transitions. Word has length 49 [2021-06-05 10:10:08,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:08,609 INFO L482 AbstractCegarLoop]: Abstraction has 4708 states and 15225 transitions. [2021-06-05 10:10:08,609 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:08,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4708 states and 15225 transitions. [2021-06-05 10:10:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-06-05 10:10:08,619 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:08,619 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:08,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 10:10:08,619 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:08,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:08,620 INFO L82 PathProgramCache]: Analyzing trace with hash -303430371, now seen corresponding path program 1 times [2021-06-05 10:10:08,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:08,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994566909] [2021-06-05 10:10:08,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:08,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:08,833 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:08,833 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994566909] [2021-06-05 10:10:08,834 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994566909] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:08,834 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:08,834 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:08,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059678135] [2021-06-05 10:10:08,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:08,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:08,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:08,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:08,838 INFO L87 Difference]: Start difference. First operand 4708 states and 15225 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:09,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:09,183 INFO L93 Difference]: Finished difference Result 7841 states and 25345 transitions. [2021-06-05 10:10:09,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:10:09,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-06-05 10:10:09,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:09,221 INFO L225 Difference]: With dead ends: 7841 [2021-06-05 10:10:09,221 INFO L226 Difference]: Without dead ends: 6201 [2021-06-05 10:10:09,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 285.9ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:10:09,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6201 states. [2021-06-05 10:10:09,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6201 to 4588. [2021-06-05 10:10:09,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 4587 states have (on average 3.223239590146065) internal successors, (14785), 4587 states have internal predecessors, (14785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:09,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 14785 transitions. [2021-06-05 10:10:09,450 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 14785 transitions. Word has length 51 [2021-06-05 10:10:09,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:09,451 INFO L482 AbstractCegarLoop]: Abstraction has 4588 states and 14785 transitions. [2021-06-05 10:10:09,452 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:09,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 14785 transitions. [2021-06-05 10:10:09,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-06-05 10:10:09,465 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:09,466 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:09,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 10:10:09,466 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:09,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:09,467 INFO L82 PathProgramCache]: Analyzing trace with hash 682898486, now seen corresponding path program 1 times [2021-06-05 10:10:09,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:09,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143561165] [2021-06-05 10:10:09,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:09,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:09,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:09,637 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:09,637 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143561165] [2021-06-05 10:10:09,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143561165] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:09,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:09,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:09,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868318728] [2021-06-05 10:10:09,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:09,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:09,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:09,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:09,640 INFO L87 Difference]: Start difference. First operand 4588 states and 14785 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:09,923 INFO L93 Difference]: Finished difference Result 6318 states and 20134 transitions. [2021-06-05 10:10:09,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:10:09,925 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-06-05 10:10:09,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:09,950 INFO L225 Difference]: With dead ends: 6318 [2021-06-05 10:10:09,950 INFO L226 Difference]: Without dead ends: 4418 [2021-06-05 10:10:09,950 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 189.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:10:09,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4418 states. [2021-06-05 10:10:10,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4418 to 3462. [2021-06-05 10:10:10,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 3461 states have (on average 3.2008090147356256) internal successors, (11078), 3461 states have internal predecessors, (11078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 11078 transitions. [2021-06-05 10:10:10,063 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 11078 transitions. Word has length 53 [2021-06-05 10:10:10,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:10,064 INFO L482 AbstractCegarLoop]: Abstraction has 3462 states and 11078 transitions. [2021-06-05 10:10:10,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 11078 transitions. [2021-06-05 10:10:10,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-06-05 10:10:10,071 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:10,071 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:10,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 10:10:10,072 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:10,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:10,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1593129158, now seen corresponding path program 1 times [2021-06-05 10:10:10,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:10,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416516730] [2021-06-05 10:10:10,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:10,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:10,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:10,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:10,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416516730] [2021-06-05 10:10:10,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416516730] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:10,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:10,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:10,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725289853] [2021-06-05 10:10:10,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:10,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:10,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:10,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:10,158 INFO L87 Difference]: Start difference. First operand 3462 states and 11078 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:10,433 INFO L93 Difference]: Finished difference Result 6177 states and 19420 transitions. [2021-06-05 10:10:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 10:10:10,434 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-06-05 10:10:10,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:10,447 INFO L225 Difference]: With dead ends: 6177 [2021-06-05 10:10:10,448 INFO L226 Difference]: Without dead ends: 3932 [2021-06-05 10:10:10,448 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 222.7ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-06-05 10:10:10,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2021-06-05 10:10:10,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 2928. [2021-06-05 10:10:10,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2928 states, 2927 states have (on average 3.169115134950461) internal successors, (9276), 2927 states have internal predecessors, (9276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 9276 transitions. [2021-06-05 10:10:10,529 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 9276 transitions. Word has length 54 [2021-06-05 10:10:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:10,529 INFO L482 AbstractCegarLoop]: Abstraction has 2928 states and 9276 transitions. [2021-06-05 10:10:10,529 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 9276 transitions. [2021-06-05 10:10:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-06-05 10:10:10,536 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:10,536 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:10,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 10:10:10,537 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:10,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:10,537 INFO L82 PathProgramCache]: Analyzing trace with hash 690569953, now seen corresponding path program 1 times [2021-06-05 10:10:10,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:10,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240067059] [2021-06-05 10:10:10,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:10,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:10,645 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:10,645 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240067059] [2021-06-05 10:10:10,645 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240067059] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:10,645 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:10,646 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:10,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640815272] [2021-06-05 10:10:10,647 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:10,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:10,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:10,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:10,648 INFO L87 Difference]: Start difference. First operand 2928 states and 9276 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:10,781 INFO L93 Difference]: Finished difference Result 3336 states and 10430 transitions. [2021-06-05 10:10:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:10:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-06-05 10:10:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:10,788 INFO L225 Difference]: With dead ends: 3336 [2021-06-05 10:10:10,788 INFO L226 Difference]: Without dead ends: 1576 [2021-06-05 10:10:10,788 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 122.7ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-06-05 10:10:10,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2021-06-05 10:10:10,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2021-06-05 10:10:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1575 states have (on average 2.9638095238095237) internal successors, (4668), 1575 states have internal predecessors, (4668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 4668 transitions. [2021-06-05 10:10:10,832 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 4668 transitions. Word has length 56 [2021-06-05 10:10:10,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:10,833 INFO L482 AbstractCegarLoop]: Abstraction has 1576 states and 4668 transitions. [2021-06-05 10:10:10,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 4668 transitions. [2021-06-05 10:10:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-06-05 10:10:10,837 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:10,837 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:10,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 10:10:10,837 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:10,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:10,838 INFO L82 PathProgramCache]: Analyzing trace with hash -708582085, now seen corresponding path program 1 times [2021-06-05 10:10:10,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:10,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344391967] [2021-06-05 10:10:10,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:10,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:10,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:10,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344391967] [2021-06-05 10:10:10,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344391967] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:10,956 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:10,956 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 10:10:10,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069243788] [2021-06-05 10:10:10,957 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-05 10:10:10,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:10,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-05 10:10:10,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-06-05 10:10:10,960 INFO L87 Difference]: Start difference. First operand 1576 states and 4668 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:11,056 INFO L93 Difference]: Finished difference Result 1797 states and 5273 transitions. [2021-06-05 10:10:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 10:10:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-06-05 10:10:11,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:11,060 INFO L225 Difference]: With dead ends: 1797 [2021-06-05 10:10:11,061 INFO L226 Difference]: Without dead ends: 1421 [2021-06-05 10:10:11,061 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 81.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-06-05 10:10:11,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2021-06-05 10:10:11,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2021-06-05 10:10:11,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1420 states have (on average 2.9140845070422534) internal successors, (4138), 1420 states have internal predecessors, (4138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 4138 transitions. [2021-06-05 10:10:11,092 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 4138 transitions. Word has length 57 [2021-06-05 10:10:11,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:11,093 INFO L482 AbstractCegarLoop]: Abstraction has 1421 states and 4138 transitions. [2021-06-05 10:10:11,093 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 4138 transitions. [2021-06-05 10:10:11,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-06-05 10:10:11,096 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:11,096 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:11,097 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 10:10:11,097 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:11,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:11,098 INFO L82 PathProgramCache]: Analyzing trace with hash -1038431362, now seen corresponding path program 1 times [2021-06-05 10:10:11,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:11,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839023406] [2021-06-05 10:10:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:11,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:11,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839023406] [2021-06-05 10:10:11,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839023406] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:11,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:11,221 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 10:10:11,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678653639] [2021-06-05 10:10:11,222 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 10:10:11,222 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:11,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 10:10:11,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-06-05 10:10:11,222 INFO L87 Difference]: Start difference. First operand 1421 states and 4138 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:11,333 INFO L93 Difference]: Finished difference Result 1307 states and 3699 transitions. [2021-06-05 10:10:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 10:10:11,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-06-05 10:10:11,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:11,336 INFO L225 Difference]: With dead ends: 1307 [2021-06-05 10:10:11,336 INFO L226 Difference]: Without dead ends: 1031 [2021-06-05 10:10:11,337 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 100.4ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:10:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2021-06-05 10:10:11,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1031. [2021-06-05 10:10:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 1030 states have (on average 2.774757281553398) internal successors, (2858), 1030 states have internal predecessors, (2858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 2858 transitions. [2021-06-05 10:10:11,358 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 2858 transitions. Word has length 58 [2021-06-05 10:10:11,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:11,358 INFO L482 AbstractCegarLoop]: Abstraction has 1031 states and 2858 transitions. [2021-06-05 10:10:11,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 2858 transitions. [2021-06-05 10:10:11,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-06-05 10:10:11,361 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 10:10:11,361 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 10:10:11,362 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 10:10:11,362 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 10:10:11,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 10:10:11,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2126121667, now seen corresponding path program 1 times [2021-06-05 10:10:11,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 10:10:11,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682354128] [2021-06-05 10:10:11,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 10:10:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 10:10:11,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 10:10:11,462 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 10:10:11,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682354128] [2021-06-05 10:10:11,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682354128] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 10:10:11,462 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 10:10:11,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 10:10:11,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60491548] [2021-06-05 10:10:11,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-05 10:10:11,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 10:10:11,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-05 10:10:11,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-06-05 10:10:11,472 INFO L87 Difference]: Start difference. First operand 1031 states and 2858 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 10:10:11,544 INFO L93 Difference]: Finished difference Result 734 states and 1967 transitions. [2021-06-05 10:10:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 10:10:11,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-06-05 10:10:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 10:10:11,545 INFO L225 Difference]: With dead ends: 734 [2021-06-05 10:10:11,545 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 10:10:11,545 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 88.7ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-06-05 10:10:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 10:10:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 10:10:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 10:10:11,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-06-05 10:10:11,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 10:10:11,546 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 10:10:11,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 10:10:11,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 10:10:11,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 10:10:11,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 10:10:11,549 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 10:10:11,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 10:10:11 BasicIcfg [2021-06-05 10:10:11,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 10:10:11,552 INFO L168 Benchmark]: Toolchain (without parser) took 6532.69 ms. Allocated memory was 381.7 MB in the beginning and 994.1 MB in the end (delta: 612.4 MB). Free memory was 343.7 MB in the beginning and 721.7 MB in the end (delta: -378.1 MB). Peak memory consumption was 236.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:11,553 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 381.7 MB. Free memory was 361.9 MB in the beginning and 361.9 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:10:11,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.35 ms. Allocated memory is still 381.7 MB. Free memory was 343.5 MB in the beginning and 344.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:11,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.31 ms. Allocated memory is still 381.7 MB. Free memory was 344.6 MB in the beginning and 342.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:11,564 INFO L168 Benchmark]: Boogie Preprocessor took 43.07 ms. Allocated memory is still 381.7 MB. Free memory was 342.4 MB in the beginning and 341.5 MB in the end (delta: 975.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 10:10:11,564 INFO L168 Benchmark]: RCFGBuilder took 561.55 ms. Allocated memory is still 381.7 MB. Free memory was 341.5 MB in the beginning and 315.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:11,564 INFO L168 Benchmark]: TraceAbstraction took 5333.27 ms. Allocated memory was 381.7 MB in the beginning and 994.1 MB in the end (delta: 612.4 MB). Free memory was 315.3 MB in the beginning and 721.7 MB in the end (delta: -406.5 MB). Peak memory consumption was 208.0 MB. Max. memory is 16.0 GB. [2021-06-05 10:10:11,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 381.7 MB. Free memory was 361.9 MB in the beginning and 361.9 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 523.35 ms. Allocated memory is still 381.7 MB. Free memory was 343.5 MB in the beginning and 344.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 59.31 ms. Allocated memory is still 381.7 MB. Free memory was 344.6 MB in the beginning and 342.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 43.07 ms. Allocated memory is still 381.7 MB. Free memory was 342.4 MB in the beginning and 341.5 MB in the end (delta: 975.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 561.55 ms. Allocated memory is still 381.7 MB. Free memory was 341.5 MB in the beginning and 315.3 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5333.27 ms. Allocated memory was 381.7 MB in the beginning and 994.1 MB in the end (delta: 612.4 MB). Free memory was 315.3 MB in the beginning and 721.7 MB in the end (delta: -406.5 MB). Peak memory consumption was 208.0 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5201.6ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 130.5ms, AutomataDifference: 2201.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 564.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 826 SDtfs, 1475 SDslu, 2882 SDs, 0 SdLazy, 347 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 324.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1412.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9332occurred in iteration=0, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 801.7ms AutomataMinimizationTime, 8 MinimizatonAttempts, 4623 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 34.1ms SsaConstructionTime, 257.6ms SatisfiabilityAnalysisTime, 1012.5ms InterpolantComputationTime, 437 NumberOfCodeBlocks, 437 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 429 ConstructedInterpolants, 0 QuantifiedInterpolants, 1715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...