/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 12:48:36,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 12:48:36,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 12:48:36,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 12:48:36,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 12:48:36,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 12:48:36,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 12:48:36,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 12:48:36,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 12:48:36,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 12:48:36,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 12:48:36,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 12:48:36,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 12:48:36,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 12:48:36,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 12:48:36,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 12:48:36,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 12:48:36,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 12:48:36,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 12:48:36,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 12:48:36,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 12:48:36,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 12:48:36,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 12:48:36,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 12:48:36,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-09 12:48:36,327 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-09 12:48:36,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-09 12:48:36,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-09 12:48:36,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-09 12:48:36,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-09 12:48:36,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 12:48:36,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 12:48:36,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 12:48:36,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 12:48:36,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 12:48:36,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 12:48:36,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 12:48:36,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 12:48:36,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 12:48:36,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 12:48:36,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 12:48:36,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 12:48:36,383 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 12:48:36,383 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 12:48:36,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 12:48:36,385 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 12:48:36,385 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 12:48:36,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 12:48:36,385 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 12:48:36,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 12:48:36,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 12:48:36,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 12:48:36,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 12:48:36,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 12:48:36,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 12:48:36,387 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 12:48:36,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 12:48:36,387 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 12:48:36,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 12:48:36,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 12:48:36,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 12:48:36,388 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 12:48:36,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 12:48:36,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 12:48:36,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 12:48:36,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 12:48:36,389 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 12:48:36,389 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 12:48:36,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 12:48:36,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 12:48:36,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 12:48:36,390 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 12:48:36,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 12:48:36,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 12:48:36,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 12:48:36,853 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 12:48:36,854 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 12:48:36,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-11-09 12:48:36,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d15caf4e/d0c6e7b20a964f69afddb2b2b2a6d2e8/FLAGc00b2a770 [2020-11-09 12:48:37,590 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 12:48:37,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.oepc.i [2020-11-09 12:48:37,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d15caf4e/d0c6e7b20a964f69afddb2b2b2a6d2e8/FLAGc00b2a770 [2020-11-09 12:48:37,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d15caf4e/d0c6e7b20a964f69afddb2b2b2a6d2e8 [2020-11-09 12:48:37,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 12:48:37,901 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 12:48:37,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 12:48:37,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 12:48:37,911 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 12:48:37,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:48:37" (1/1) ... [2020-11-09 12:48:37,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b135f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:37, skipping insertion in model container [2020-11-09 12:48:37,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:48:37" (1/1) ... [2020-11-09 12:48:37,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 12:48:37,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 12:48:38,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:48:38,430 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 12:48:38,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 12:48:38,558 INFO L208 MainTranslator]: Completed translation [2020-11-09 12:48:38,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38 WrapperNode [2020-11-09 12:48:38,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 12:48:38,560 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 12:48:38,560 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 12:48:38,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 12:48:38,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 12:48:38,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 12:48:38,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 12:48:38,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 12:48:38,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (1/1) ... [2020-11-09 12:48:38,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 12:48:38,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 12:48:38,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 12:48:38,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 12:48:38,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (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 12:48:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 12:48:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 12:48:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 12:48:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 12:48:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 12:48:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 12:48:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 12:48:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 12:48:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 12:48:38,762 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 12:48:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 12:48:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 12:48:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 12:48:38,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 12:48:38,765 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 12:48:39,177 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 12:48:39,177 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 12:48:39,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:39 BoogieIcfgContainer [2020-11-09 12:48:39,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 12:48:39,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 12:48:39,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 12:48:39,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 12:48:39,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:48:37" (1/3) ... [2020-11-09 12:48:39,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b505d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:48:39, skipping insertion in model container [2020-11-09 12:48:39,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:48:38" (2/3) ... [2020-11-09 12:48:39,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b505d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:48:39, skipping insertion in model container [2020-11-09 12:48:39,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:39" (3/3) ... [2020-11-09 12:48:39,189 INFO L111 eAbstractionObserver]: Analyzing ICFG safe020_pso.oepc.i [2020-11-09 12:48:39,206 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 12:48:39,206 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 12:48:39,210 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 12:48:39,211 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 12:48:39,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,247 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,248 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,248 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,249 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,249 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,250 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,250 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,250 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,251 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,251 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,251 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,251 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,251 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,251 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,252 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,253 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,253 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,253 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,253 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,254 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,254 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,254 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,254 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,254 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,255 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,258 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,258 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,259 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,266 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,266 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,266 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,267 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,270 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,271 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,271 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 12:48:39,274 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 12:48:39,287 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-09 12:48:39,312 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 12:48:39,312 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 12:48:39,312 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 12:48:39,312 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 12:48:39,312 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 12:48:39,313 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 12:48:39,313 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 12:48:39,313 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 12:48:39,327 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 12:48:39,329 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-11-09 12:48:39,333 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-11-09 12:48:39,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-11-09 12:48:39,396 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-11-09 12:48:39,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 12:48:39,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 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. 0/70 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-09 12:48:39,409 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-09 12:48:42,268 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-11-09 12:48:42,644 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-09 12:48:42,887 WARN L194 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2020-11-09 12:48:43,106 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-11-09 12:48:43,253 WARN L194 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-11-09 12:48:43,727 WARN L194 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-11-09 12:48:44,042 WARN L194 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2020-11-09 12:48:44,149 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-11-09 12:48:44,494 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:48:44,600 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:48:44,708 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 12:48:44,843 INFO L131 LiptonReduction]: Checked pairs total: 3056 [2020-11-09 12:48:44,843 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-09 12:48:44,856 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 21 transitions, 57 flow [2020-11-09 12:48:44,878 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-11-09 12:48:44,880 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-11-09 12:48:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-09 12:48:44,887 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:44,888 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:44,888 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:44,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:44,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1972841711, now seen corresponding path program 1 times [2020-11-09 12:48:44,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:44,904 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336376710] [2020-11-09 12:48:44,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:45,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:45,145 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 12:48:45,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336376710] [2020-11-09 12:48:45,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:45,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:48:45,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665585064] [2020-11-09 12:48:45,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:48:45,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:45,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:48:45,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:48:45,170 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-11-09 12:48:45,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:45,216 INFO L93 Difference]: Finished difference Result 220 states and 612 transitions. [2020-11-09 12:48:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:48:45,218 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-09 12:48:45,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:45,239 INFO L225 Difference]: With dead ends: 220 [2020-11-09 12:48:45,239 INFO L226 Difference]: Without dead ends: 172 [2020-11-09 12:48:45,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:48:45,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-09 12:48:45,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2020-11-09 12:48:45,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2020-11-09 12:48:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 460 transitions. [2020-11-09 12:48:45,304 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 460 transitions. Word has length 8 [2020-11-09 12:48:45,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:45,305 INFO L481 AbstractCegarLoop]: Abstraction has 172 states and 460 transitions. [2020-11-09 12:48:45,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:48:45,305 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 460 transitions. [2020-11-09 12:48:45,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 12:48:45,306 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:45,306 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:45,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 12:48:45,307 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:45,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:45,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1028549814, now seen corresponding path program 1 times [2020-11-09 12:48:45,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:45,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620482784] [2020-11-09 12:48:45,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:45,427 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 12:48:45,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620482784] [2020-11-09 12:48:45,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:45,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 12:48:45,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123986971] [2020-11-09 12:48:45,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:48:45,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:45,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:48:45,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:48:45,431 INFO L87 Difference]: Start difference. First operand 172 states and 460 transitions. Second operand 3 states. [2020-11-09 12:48:45,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:45,452 INFO L93 Difference]: Finished difference Result 163 states and 430 transitions. [2020-11-09 12:48:45,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:48:45,456 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-09 12:48:45,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:45,459 INFO L225 Difference]: With dead ends: 163 [2020-11-09 12:48:45,459 INFO L226 Difference]: Without dead ends: 163 [2020-11-09 12:48:45,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:48:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-11-09 12:48:45,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2020-11-09 12:48:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163 states. [2020-11-09 12:48:45,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 430 transitions. [2020-11-09 12:48:45,478 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 430 transitions. Word has length 9 [2020-11-09 12:48:45,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:45,478 INFO L481 AbstractCegarLoop]: Abstraction has 163 states and 430 transitions. [2020-11-09 12:48:45,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:48:45,478 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 430 transitions. [2020-11-09 12:48:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:48:45,480 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:45,480 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:45,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 12:48:45,480 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:45,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:45,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1819291053, now seen corresponding path program 1 times [2020-11-09 12:48:45,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:45,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764340947] [2020-11-09 12:48:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:45,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:45,558 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 12:48:45,559 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764340947] [2020-11-09 12:48:45,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:45,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:48:45,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400726788] [2020-11-09 12:48:45,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 12:48:45,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:45,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 12:48:45,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:48:45,561 INFO L87 Difference]: Start difference. First operand 163 states and 430 transitions. Second operand 3 states. [2020-11-09 12:48:45,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:45,604 INFO L93 Difference]: Finished difference Result 211 states and 528 transitions. [2020-11-09 12:48:45,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 12:48:45,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 12:48:45,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:45,613 INFO L225 Difference]: With dead ends: 211 [2020-11-09 12:48:45,614 INFO L226 Difference]: Without dead ends: 175 [2020-11-09 12:48:45,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 12:48:45,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2020-11-09 12:48:45,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 157. [2020-11-09 12:48:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-11-09 12:48:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 393 transitions. [2020-11-09 12:48:45,645 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 393 transitions. Word has length 10 [2020-11-09 12:48:45,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:45,646 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 393 transitions. [2020-11-09 12:48:45,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 12:48:45,646 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 393 transitions. [2020-11-09 12:48:45,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 12:48:45,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:45,648 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:45,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 12:48:45,648 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:45,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1819353363, now seen corresponding path program 1 times [2020-11-09 12:48:45,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:45,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135296535] [2020-11-09 12:48:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:45,746 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 12:48:45,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135296535] [2020-11-09 12:48:45,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:45,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:48:45,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113471910] [2020-11-09 12:48:45,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:48:45,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:45,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:48:45,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:48:45,749 INFO L87 Difference]: Start difference. First operand 157 states and 393 transitions. Second operand 4 states. [2020-11-09 12:48:45,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:45,781 INFO L93 Difference]: Finished difference Result 196 states and 467 transitions. [2020-11-09 12:48:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:48:45,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-09 12:48:45,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:45,784 INFO L225 Difference]: With dead ends: 196 [2020-11-09 12:48:45,784 INFO L226 Difference]: Without dead ends: 124 [2020-11-09 12:48:45,784 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 12:48:45,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-09 12:48:45,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-11-09 12:48:45,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-11-09 12:48:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 291 transitions. [2020-11-09 12:48:45,794 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 291 transitions. Word has length 10 [2020-11-09 12:48:45,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:45,794 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 291 transitions. [2020-11-09 12:48:45,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:48:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 291 transitions. [2020-11-09 12:48:45,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 12:48:45,796 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:45,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:45,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 12:48:45,796 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:45,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:45,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1404816041, now seen corresponding path program 1 times [2020-11-09 12:48:45,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:45,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84035336] [2020-11-09 12:48:45,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:45,887 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 12:48:45,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84035336] [2020-11-09 12:48:45,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:45,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 12:48:45,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437458681] [2020-11-09 12:48:45,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:48:45,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:45,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:48:45,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:48:45,890 INFO L87 Difference]: Start difference. First operand 124 states and 291 transitions. Second operand 4 states. [2020-11-09 12:48:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:45,923 INFO L93 Difference]: Finished difference Result 144 states and 309 transitions. [2020-11-09 12:48:45,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 12:48:45,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 12:48:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:45,925 INFO L225 Difference]: With dead ends: 144 [2020-11-09 12:48:45,925 INFO L226 Difference]: Without dead ends: 108 [2020-11-09 12:48:45,926 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 12:48:45,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-11-09 12:48:45,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-11-09 12:48:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-09 12:48:45,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 232 transitions. [2020-11-09 12:48:45,933 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 232 transitions. Word has length 11 [2020-11-09 12:48:45,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:45,933 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 232 transitions. [2020-11-09 12:48:45,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:48:45,933 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 232 transitions. [2020-11-09 12:48:45,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 12:48:45,934 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:45,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:45,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 12:48:45,935 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:45,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:45,935 INFO L82 PathProgramCache]: Analyzing trace with hash 693308811, now seen corresponding path program 1 times [2020-11-09 12:48:45,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:45,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674554967] [2020-11-09 12:48:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:45,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:45,996 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 12:48:45,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674554967] [2020-11-09 12:48:45,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:45,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:48:45,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69602521] [2020-11-09 12:48:45,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 12:48:45,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:45,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 12:48:45,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:48:45,999 INFO L87 Difference]: Start difference. First operand 108 states and 232 transitions. Second operand 5 states. [2020-11-09 12:48:46,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:46,052 INFO L93 Difference]: Finished difference Result 108 states and 214 transitions. [2020-11-09 12:48:46,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-09 12:48:46,053 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-09 12:48:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:46,054 INFO L225 Difference]: With dead ends: 108 [2020-11-09 12:48:46,054 INFO L226 Difference]: Without dead ends: 84 [2020-11-09 12:48:46,054 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:48:46,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-11-09 12:48:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-11-09 12:48:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-09 12:48:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 164 transitions. [2020-11-09 12:48:46,058 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 164 transitions. Word has length 12 [2020-11-09 12:48:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:46,058 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 164 transitions. [2020-11-09 12:48:46,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 12:48:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 164 transitions. [2020-11-09 12:48:46,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 12:48:46,060 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:46,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:46,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 12:48:46,060 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:46,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:46,061 INFO L82 PathProgramCache]: Analyzing trace with hash 489181955, now seen corresponding path program 1 times [2020-11-09 12:48:46,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:46,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855828462] [2020-11-09 12:48:46,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:46,120 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 12:48:46,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855828462] [2020-11-09 12:48:46,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:46,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 12:48:46,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204095525] [2020-11-09 12:48:46,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 12:48:46,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:46,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 12:48:46,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 12:48:46,123 INFO L87 Difference]: Start difference. First operand 84 states and 164 transitions. Second operand 6 states. [2020-11-09 12:48:46,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:46,182 INFO L93 Difference]: Finished difference Result 80 states and 154 transitions. [2020-11-09 12:48:46,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 12:48:46,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-09 12:48:46,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:46,184 INFO L225 Difference]: With dead ends: 80 [2020-11-09 12:48:46,184 INFO L226 Difference]: Without dead ends: 33 [2020-11-09 12:48:46,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 12:48:46,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-11-09 12:48:46,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-11-09 12:48:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-11-09 12:48:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-11-09 12:48:46,187 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2020-11-09 12:48:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:46,187 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-11-09 12:48:46,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 12:48:46,187 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-11-09 12:48:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 12:48:46,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 12:48:46,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 12:48:46,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 12:48:46,188 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 12:48:46,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 12:48:46,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1917932335, now seen corresponding path program 1 times [2020-11-09 12:48:46,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 12:48:46,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98632393] [2020-11-09 12:48:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 12:48:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 12:48:46,227 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 12:48:46,228 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98632393] [2020-11-09 12:48:46,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 12:48:46,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 12:48:46,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130160175] [2020-11-09 12:48:46,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 12:48:46,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 12:48:46,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 12:48:46,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 12:48:46,230 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-11-09 12:48:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 12:48:46,242 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-11-09 12:48:46,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 12:48:46,242 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-09 12:48:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 12:48:46,243 INFO L225 Difference]: With dead ends: 32 [2020-11-09 12:48:46,243 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 12:48:46,243 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 12:48:46,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 12:48:46,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 12:48:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 12:48:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 12:48:46,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-11-09 12:48:46,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 12:48:46,244 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 12:48:46,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 12:48:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 12:48:46,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 12:48:46,245 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 12:48:46,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 12:48:46 BasicIcfg [2020-11-09 12:48:46,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 12:48:46,250 INFO L168 Benchmark]: Toolchain (without parser) took 8357.38 ms. Allocated memory was 152.0 MB in the beginning and 220.2 MB in the end (delta: 68.2 MB). Free memory was 126.3 MB in the beginning and 129.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 65.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:48:46,251 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 12:48:46,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.18 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 95.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-11-09 12:48:46,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.05 ms. Allocated memory is still 152.0 MB. Free memory was 94.8 MB in the beginning and 134.8 MB in the end (delta: -40.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. [2020-11-09 12:48:46,253 INFO L168 Benchmark]: Boogie Preprocessor took 35.19 ms. Allocated memory is still 152.0 MB. Free memory was 134.8 MB in the beginning and 133.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 12:48:46,254 INFO L168 Benchmark]: RCFGBuilder took 513.89 ms. Allocated memory is still 152.0 MB. Free memory was 133.6 MB in the beginning and 111.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. [2020-11-09 12:48:46,255 INFO L168 Benchmark]: TraceAbstraction took 7066.97 ms. Allocated memory was 152.0 MB in the beginning and 220.2 MB in the end (delta: 68.2 MB). Free memory was 110.5 MB in the beginning and 129.1 MB in the end (delta: -18.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2020-11-09 12:48:46,259 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 152.0 MB. Free memory is still 125.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 654.18 ms. Allocated memory is still 152.0 MB. Free memory was 125.7 MB in the beginning and 95.0 MB in the end (delta: 30.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 69.05 ms. Allocated memory is still 152.0 MB. Free memory was 94.8 MB in the beginning and 134.8 MB in the end (delta: -40.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.19 ms. Allocated memory is still 152.0 MB. Free memory was 134.8 MB in the beginning and 133.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 513.89 ms. Allocated memory is still 152.0 MB. Free memory was 133.6 MB in the beginning and 111.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7066.97 ms. Allocated memory was 152.0 MB in the beginning and 220.2 MB in the end (delta: 68.2 MB). Free memory was 110.5 MB in the beginning and 129.1 MB in the end (delta: -18.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 936 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 72 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.5s, 84 PlacesBefore, 30 PlacesAfterwards, 77 TransitionsBefore, 21 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 47 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 3056 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, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 134 SDtfs, 110 SDslu, 162 SDs, 0 SdLazy, 101 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2696 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...