/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 21:16:59,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 21:16:59,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 21:16:59,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 21:16:59,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 21:16:59,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 21:16:59,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 21:16:59,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 21:16:59,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 21:16:59,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 21:16:59,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 21:16:59,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 21:16:59,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 21:16:59,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 21:16:59,287 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 21:16:59,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 21:16:59,290 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 21:16:59,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 21:16:59,294 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 21:16:59,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 21:16:59,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 21:16:59,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 21:16:59,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 21:16:59,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 21:16:59,307 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 21:16:59,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 21:16:59,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 21:16:59,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 21:16:59,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 21:16:59,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 21:16:59,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 21:16:59,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 21:16:59,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 21:16:59,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 21:16:59,316 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 21:16:59,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 21:16:59,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 21:16:59,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 21:16:59,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 21:16:59,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 21:16:59,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 21:16:59,321 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-keepdead.epf [2021-01-20 21:16:59,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 21:16:59,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 21:16:59,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 21:16:59,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 21:16:59,363 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 21:16:59,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 21:16:59,365 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 21:16:59,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 21:16:59,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 21:16:59,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 21:16:59,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 21:16:59,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 21:16:59,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 21:16:59,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 21:16:59,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 21:16:59,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 21:16:59,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 21:16:59,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 21:16:59,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 21:16:59,369 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 21:16:59,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 21:16:59,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 21:16:59,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 21:16:59,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 21:16:59,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 21:16:59,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 21:16:59,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 21:16:59,372 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 21:16:59,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 21:16:59,373 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2021-01-20 21:16:59,373 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 21:16:59,374 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 21:16:59,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 21:16:59,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 21:16:59,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 21:16:59,847 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 21:16:59,848 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 21:16:59,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2021-01-20 21:16:59,930 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e51e9ad5/eeeb3fdfb6c445f7b3e177a3f3fe64da/FLAGa43fad3c1 [2021-01-20 21:17:00,677 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 21:17:00,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2021-01-20 21:17:00,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e51e9ad5/eeeb3fdfb6c445f7b3e177a3f3fe64da/FLAGa43fad3c1 [2021-01-20 21:17:00,968 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e51e9ad5/eeeb3fdfb6c445f7b3e177a3f3fe64da [2021-01-20 21:17:00,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 21:17:00,974 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 21:17:00,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 21:17:00,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 21:17:00,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 21:17:00,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:17:00" (1/1) ... [2021-01-20 21:17:00,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aced117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:00, skipping insertion in model container [2021-01-20 21:17:00,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 09:17:00" (1/1) ... [2021-01-20 21:17:00,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 21:17:01,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 21:17:01,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:17:01,495 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 21:17:01,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 21:17:01,697 INFO L208 MainTranslator]: Completed translation [2021-01-20 21:17:01,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01 WrapperNode [2021-01-20 21:17:01,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 21:17:01,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 21:17:01,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 21:17:01,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 21:17:01,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 21:17:01,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 21:17:01,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 21:17:01,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 21:17:01,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (1/1) ... [2021-01-20 21:17:01,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 21:17:01,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 21:17:01,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 21:17:01,785 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 21:17:01,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (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 [2021-01-20 21:17:01,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 21:17:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 21:17:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 21:17:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 21:17:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 21:17:01,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 21:17:01,873 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 21:17:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 21:17:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-20 21:17:01,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-20 21:17:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 21:17:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 21:17:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 21:17:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 21:17:01,876 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 21:17:02,467 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 21:17:02,468 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 21:17:02,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:17:02 BoogieIcfgContainer [2021-01-20 21:17:02,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 21:17:02,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 21:17:02,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 21:17:02,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 21:17:02,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 09:17:00" (1/3) ... [2021-01-20 21:17:02,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7720764e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:17:02, skipping insertion in model container [2021-01-20 21:17:02,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 09:17:01" (2/3) ... [2021-01-20 21:17:02,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7720764e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 09:17:02, skipping insertion in model container [2021-01-20 21:17:02,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 09:17:02" (3/3) ... [2021-01-20 21:17:02,486 INFO L111 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2021-01-20 21:17:02,504 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 21:17:02,504 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 21:17:02,508 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 21:17:02,509 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 21:17:02,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,556 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,556 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,557 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,557 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,558 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,561 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,561 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,561 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,562 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,565 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,565 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,567 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,567 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,569 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,570 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,574 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,575 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,575 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,576 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,581 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,582 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,582 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,583 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,587 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,588 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,588 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 21:17:02,590 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 21:17:02,603 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-20 21:17:02,626 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 21:17:02,626 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 21:17:02,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 21:17:02,626 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 21:17:02,640 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 21:17:02,640 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 21:17:02,640 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 21:17:02,641 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 21:17:02,652 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 76 transitions, 167 flow [2021-01-20 21:17:03,497 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 8446 states, 8444 states have (on average 3.5900047370914256) internal successors, (30314), 8445 states have internal predecessors, (30314), 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) [2021-01-20 21:17:03,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 8446 states, 8444 states have (on average 3.5900047370914256) internal successors, (30314), 8445 states have internal predecessors, (30314), 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) [2021-01-20 21:17:03,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-01-20 21:17:03,668 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:03,669 INFO L504 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] [2021-01-20 21:17:03,669 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:03,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:03,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1568087296, now seen corresponding path program 1 times [2021-01-20 21:17:03,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:03,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122642024] [2021-01-20 21:17:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:03,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:04,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122642024] [2021-01-20 21:17:04,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:04,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:17:04,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524667932] [2021-01-20 21:17:04,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:17:04,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:04,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:17:04,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:17:04,144 INFO L87 Difference]: Start difference. First operand has 8446 states, 8444 states have (on average 3.5900047370914256) internal successors, (30314), 8445 states have internal predecessors, (30314), 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 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-01-20 21:17:04,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:04,536 INFO L93 Difference]: Finished difference Result 11326 states and 39206 transitions. [2021-01-20 21:17:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:17:04,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 40 [2021-01-20 21:17:04,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:04,541 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:17:04,541 INFO L78 Accepts]: Start accepts. Automaton has 11326 states and 39206 transitions. Word has length 40 [2021-01-20 21:17:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:04,543 INFO L481 AbstractCegarLoop]: Abstraction has 11326 states and 39206 transitions. [2021-01-20 21:17:04,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2021-01-20 21:17:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 11326 states and 39206 transitions. [2021-01-20 21:17:04,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 21:17:04,560 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:04,560 INFO L504 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] [2021-01-20 21:17:04,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 21:17:04,561 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:04,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:04,562 INFO L82 PathProgramCache]: Analyzing trace with hash -291447777, now seen corresponding path program 1 times [2021-01-20 21:17:04,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:04,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090711484] [2021-01-20 21:17:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:04,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090711484] [2021-01-20 21:17:04,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:04,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:17:04,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028594597] [2021-01-20 21:17:04,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:17:04,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:04,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:17:04,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:17:04,750 INFO L87 Difference]: Start difference. First operand 11326 states and 39206 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 21:17:05,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:05,196 INFO L93 Difference]: Finished difference Result 16126 states and 55446 transitions. [2021-01-20 21:17:05,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:17:05,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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 42 [2021-01-20 21:17:05,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:05,198 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:17:05,198 INFO L78 Accepts]: Start accepts. Automaton has 16126 states and 55446 transitions. Word has length 42 [2021-01-20 21:17:05,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:05,199 INFO L481 AbstractCegarLoop]: Abstraction has 16126 states and 55446 transitions. [2021-01-20 21:17:05,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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) [2021-01-20 21:17:05,199 INFO L276 IsEmpty]: Start isEmpty. Operand 16126 states and 55446 transitions. [2021-01-20 21:17:05,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-01-20 21:17:05,233 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:05,233 INFO L504 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] [2021-01-20 21:17:05,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 21:17:05,234 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:05,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:05,235 INFO L82 PathProgramCache]: Analyzing trace with hash 209891192, now seen corresponding path program 1 times [2021-01-20 21:17:05,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:05,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477039650] [2021-01-20 21:17:05,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:05,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:05,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477039650] [2021-01-20 21:17:05,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:05,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:17:05,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948561684] [2021-01-20 21:17:05,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:17:05,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:05,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:17:05,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:17:05,370 INFO L87 Difference]: Start difference. First operand 16126 states and 55446 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-01-20 21:17:05,681 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-01-20 21:17:05,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:05,983 INFO L93 Difference]: Finished difference Result 26310 states and 89642 transitions. [2021-01-20 21:17:05,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:17:05,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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 43 [2021-01-20 21:17:05,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:05,985 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2021-01-20 21:17:05,985 INFO L78 Accepts]: Start accepts. Automaton has 26310 states and 89642 transitions. Word has length 43 [2021-01-20 21:17:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:05,986 INFO L481 AbstractCegarLoop]: Abstraction has 26310 states and 89642 transitions. [2021-01-20 21:17:05,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 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) [2021-01-20 21:17:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 26310 states and 89642 transitions. [2021-01-20 21:17:06,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:17:06,134 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:06,134 INFO L504 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] [2021-01-20 21:17:06,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 21:17:06,135 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:06,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:06,136 INFO L82 PathProgramCache]: Analyzing trace with hash -654532284, now seen corresponding path program 1 times [2021-01-20 21:17:06,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:06,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106704839] [2021-01-20 21:17:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:06,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106704839] [2021-01-20 21:17:06,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:06,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:17:06,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037409788] [2021-01-20 21:17:06,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:17:06,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:06,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:17:06,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:17:06,288 INFO L87 Difference]: Start difference. First operand 26310 states and 89642 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-20 21:17:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:06,882 INFO L93 Difference]: Finished difference Result 45766 states and 153282 transitions. [2021-01-20 21:17:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:17:06,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-20 21:17:06,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:06,890 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:17:06,890 INFO L78 Accepts]: Start accepts. Automaton has 45766 states and 153282 transitions. Word has length 45 [2021-01-20 21:17:06,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:06,891 INFO L481 AbstractCegarLoop]: Abstraction has 45766 states and 153282 transitions. [2021-01-20 21:17:06,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-20 21:17:06,891 INFO L276 IsEmpty]: Start isEmpty. Operand 45766 states and 153282 transitions. [2021-01-20 21:17:07,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 21:17:07,091 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:07,091 INFO L504 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] [2021-01-20 21:17:07,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 21:17:07,096 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:07,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:07,097 INFO L82 PathProgramCache]: Analyzing trace with hash 725194327, now seen corresponding path program 1 times [2021-01-20 21:17:07,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:07,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665058113] [2021-01-20 21:17:07,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:07,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:07,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665058113] [2021-01-20 21:17:07,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:07,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:17:07,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123655010] [2021-01-20 21:17:07,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:17:07,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:07,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:17:07,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:17:07,278 INFO L87 Difference]: Start difference. First operand 45766 states and 153282 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-20 21:17:07,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:07,990 INFO L93 Difference]: Finished difference Result 75062 states and 248446 transitions. [2021-01-20 21:17:07,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 21:17:07,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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 45 [2021-01-20 21:17:07,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:07,992 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:17:07,992 INFO L78 Accepts]: Start accepts. Automaton has 75062 states and 248446 transitions. Word has length 45 [2021-01-20 21:17:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:07,993 INFO L481 AbstractCegarLoop]: Abstraction has 75062 states and 248446 transitions. [2021-01-20 21:17:07,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-01-20 21:17:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 75062 states and 248446 transitions. [2021-01-20 21:17:08,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-01-20 21:17:08,065 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:08,065 INFO L504 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] [2021-01-20 21:17:08,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 21:17:08,066 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:08,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:08,066 INFO L82 PathProgramCache]: Analyzing trace with hash -643023679, now seen corresponding path program 1 times [2021-01-20 21:17:08,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:08,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248071140] [2021-01-20 21:17:08,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:08,387 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 5 [2021-01-20 21:17:08,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:08,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248071140] [2021-01-20 21:17:08,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:08,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 21:17:08,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141227253] [2021-01-20 21:17:08,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 21:17:08,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:08,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 21:17:08,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 21:17:08,394 INFO L87 Difference]: Start difference. First operand 75062 states and 248446 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 21:17:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:08,963 INFO L93 Difference]: Finished difference Result 54524 states and 176635 transitions. [2021-01-20 21:17:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 21:17:08,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2021-01-20 21:17:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:08,965 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 21:17:08,965 INFO L78 Accepts]: Start accepts. Automaton has 54524 states and 176635 transitions. Word has length 46 [2021-01-20 21:17:08,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:08,965 INFO L481 AbstractCegarLoop]: Abstraction has 54524 states and 176635 transitions. [2021-01-20 21:17:08,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 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) [2021-01-20 21:17:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 54524 states and 176635 transitions. [2021-01-20 21:17:09,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-20 21:17:09,007 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:09,007 INFO L504 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] [2021-01-20 21:17:09,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 21:17:09,008 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:09,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:09,008 INFO L82 PathProgramCache]: Analyzing trace with hash -2047216989, now seen corresponding path program 1 times [2021-01-20 21:17:09,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:09,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945972920] [2021-01-20 21:17:09,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:09,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:09,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945972920] [2021-01-20 21:17:09,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:09,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 21:17:09,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508661057] [2021-01-20 21:17:09,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 21:17:09,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:09,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 21:17:09,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 21:17:09,159 INFO L87 Difference]: Start difference. First operand 54524 states and 176635 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-20 21:17:09,481 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-01-20 21:17:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:09,694 INFO L93 Difference]: Finished difference Result 31007 states and 97663 transitions. [2021-01-20 21:17:09,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-01-20 21:17:09,694 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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 47 [2021-01-20 21:17:09,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:09,695 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-01-20 21:17:09,695 INFO L78 Accepts]: Start accepts. Automaton has 31007 states and 97663 transitions. Word has length 47 [2021-01-20 21:17:09,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:09,696 INFO L481 AbstractCegarLoop]: Abstraction has 31007 states and 97663 transitions. [2021-01-20 21:17:09,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2021-01-20 21:17:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 31007 states and 97663 transitions. [2021-01-20 21:17:09,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-01-20 21:17:09,727 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 21:17:09,727 INFO L504 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] [2021-01-20 21:17:09,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 21:17:09,727 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 21:17:09,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 21:17:09,728 INFO L82 PathProgramCache]: Analyzing trace with hash -306973980, now seen corresponding path program 1 times [2021-01-20 21:17:09,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 21:17:09,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900281717] [2021-01-20 21:17:09,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 21:17:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 21:17:10,014 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2021-01-20 21:17:10,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 21:17:10,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900281717] [2021-01-20 21:17:10,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 21:17:10,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-20 21:17:10,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912339924] [2021-01-20 21:17:10,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-20 21:17:10,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 21:17:10,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-20 21:17:10,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-20 21:17:10,073 INFO L87 Difference]: Start difference. First operand 31007 states and 97663 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-20 21:17:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 21:17:10,497 INFO L93 Difference]: Finished difference Result 17723 states and 55417 transitions. [2021-01-20 21:17:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-01-20 21:17:10,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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 [2021-01-20 21:17:10,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 21:17:10,499 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=226, Unknown=0, NotChecked=0, Total=342 [2021-01-20 21:17:10,499 INFO L78 Accepts]: Start accepts. Automaton has 17723 states and 55417 transitions. Word has length 49 [2021-01-20 21:17:10,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 21:17:10,499 INFO L481 AbstractCegarLoop]: Abstraction has 17723 states and 55417 transitions. [2021-01-20 21:17:10,500 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 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) [2021-01-20 21:17:10,500 INFO L276 IsEmpty]: Start isEmpty. Operand 17723 states and 55417 transitions. [2021-01-20 21:17:10,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 21:17:10,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 21:17:10,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 09:17:10 BasicIcfg [2021-01-20 21:17:10,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 21:17:10,541 INFO L168 Benchmark]: Toolchain (without parser) took 9567.30 ms. Allocated memory was 302.0 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 275.5 MB in the beginning and 7.1 GB in the end (delta: -6.9 GB). Peak memory consumption was 524.4 MB. Max. memory is 16.0 GB. [2021-01-20 21:17:10,541 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:17:10,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.27 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 272.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. [2021-01-20 21:17:10,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.48 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 270.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:17:10,544 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 269.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 21:17:10,544 INFO L168 Benchmark]: RCFGBuilder took 686.72 ms. Allocated memory is still 302.0 MB. Free memory was 269.0 MB in the beginning and 246.3 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-01-20 21:17:10,547 INFO L168 Benchmark]: TraceAbstraction took 8062.59 ms. Allocated memory was 302.0 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 245.9 MB in the beginning and 7.1 GB in the end (delta: -6.9 GB). Peak memory consumption was 493.4 MB. Max. memory is 16.0 GB. [2021-01-20 21:17:10,554 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 302.0 MB. Free memory is still 272.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 729.27 ms. Allocated memory is still 302.0 MB. Free memory was 275.4 MB in the beginning and 272.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.48 ms. Allocated memory is still 302.0 MB. Free memory was 271.9 MB in the beginning and 270.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 302.0 MB. Free memory was 270.3 MB in the beginning and 269.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 686.72 ms. Allocated memory is still 302.0 MB. Free memory was 269.0 MB in the beginning and 246.3 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8062.59 ms. Allocated memory was 302.0 MB in the beginning and 7.7 GB in the end (delta: 7.4 GB). Free memory was 245.9 MB in the beginning and 7.1 GB in the end (delta: -6.9 GB). Peak memory consumption was 493.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 74 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 914 SDtfs, 1707 SDslu, 3047 SDs, 0 SdLazy, 357 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75062occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 357 NumberOfCodeBlocks, 357 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 349 ConstructedInterpolants, 0 QuantifiedInterpolants, 40707 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...