/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.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:36:04,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:36:04,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:36:04,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:36:04,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:36:04,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:36:04,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:36:04,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:36:04,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:36:04,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:36:04,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:36:04,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:36:04,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:36:04,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:36:04,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:36:04,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:36:04,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:36:04,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:36:04,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:36:04,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:36:04,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:36:04,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:36:04,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:36:04,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:36:04,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:36:04,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:36:04,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:36:04,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:36:04,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:36:04,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:36:04,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:36:04,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:36:04,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:36:04,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:36:04,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:36:04,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:36:04,549 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.epf [2021-01-26 17:36:04,577 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:36:04,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:36:04,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:36:04,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:36:04,579 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:36:04,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:36:04,580 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:36:04,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:36:04,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:36:04,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:36:04,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:36:04,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:36:04,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:36:04,581 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:36:04,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:36:04,582 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:36:04,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:36:04,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:36:04,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:36:04,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:36:04,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:36:04,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:36:04,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:36:04,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:36:04,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:36:04,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:36:04,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:36:04,584 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:36:04,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:36:04,585 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:36:04,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:36:04,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:36:04,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:36:04,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:36:04,981 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:36:04,982 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:36:04,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2021-01-26 17:36:05,066 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e14c0d3/2680f40b97d445cfb5d24a0140539132/FLAGb7538c3c5 [2021-01-26 17:36:05,803 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:36:05,803 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2021-01-26 17:36:05,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e14c0d3/2680f40b97d445cfb5d24a0140539132/FLAGb7538c3c5 [2021-01-26 17:36:06,068 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6e14c0d3/2680f40b97d445cfb5d24a0140539132 [2021-01-26 17:36:06,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:36:06,083 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:36:06,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:36:06,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:36:06,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:36:06,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749457c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06, skipping insertion in model container [2021-01-26 17:36:06,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:36:06,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:36:06,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:36:06,587 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:36:06,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:36:06,764 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:36:06,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06 WrapperNode [2021-01-26 17:36:06,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:36:06,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:36:06,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:36:06,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:36:06,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:36:06,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:36:06,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:36:06,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:36:06,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (1/1) ... [2021-01-26 17:36:06,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:36:06,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:36:06,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:36:06,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:36:06,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (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 [2021-01-26 17:36:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:36:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:36:06,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:36:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:36:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:36:06,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:36:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:36:06,944 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:36:06,944 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:36:06,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:36:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:36:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:36:06,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:36:06,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:36:06,947 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:36:07,456 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:36:07,456 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:36:07,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:36:07 BoogieIcfgContainer [2021-01-26 17:36:07,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:36:07,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:36:07,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:36:07,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:36:07,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:36:06" (1/3) ... [2021-01-26 17:36:07,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bad1183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:36:07, skipping insertion in model container [2021-01-26 17:36:07,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:36:06" (2/3) ... [2021-01-26 17:36:07,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bad1183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:36:07, skipping insertion in model container [2021-01-26 17:36:07,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:36:07" (3/3) ... [2021-01-26 17:36:07,467 INFO L111 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2021-01-26 17:36:07,481 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:36:07,482 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:36:07,485 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:36:07,486 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:36:07,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,521 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,521 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,521 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,522 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,522 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,523 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,524 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,524 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,524 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,525 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,525 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,525 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,526 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,526 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,526 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,527 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,527 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,527 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,527 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,527 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,527 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,528 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,528 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,528 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,529 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,531 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,531 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,532 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,538 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,538 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,539 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,545 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,545 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,545 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,545 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:36:07,548 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:36:07,562 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:36:07,585 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:36:07,585 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:36:07,586 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:36:07,586 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:36:07,586 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:36:07,586 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:36:07,586 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:36:07,586 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:36:07,599 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-26 17:36:08,538 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-26 17:36:08,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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) [2021-01-26 17:36:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:36:08,644 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:08,644 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] [2021-01-26 17:36:08,645 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:08,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:08,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1266406659, now seen corresponding path program 1 times [2021-01-26 17:36:08,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:08,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830453239] [2021-01-26 17:36:08,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:09,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830453239] [2021-01-26 17:36:09,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:09,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:36:09,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679778629] [2021-01-26 17:36:09,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:36:09,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:09,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:36:09,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:36:09,315 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 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 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) [2021-01-26 17:36:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:09,693 INFO L93 Difference]: Finished difference Result 11318 states and 39237 transitions. [2021-01-26 17:36:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:36:09,695 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 [2021-01-26 17:36:09,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:09,751 INFO L225 Difference]: With dead ends: 11318 [2021-01-26 17:36:09,752 INFO L226 Difference]: Without dead ends: 4213 [2021-01-26 17:36:09,753 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:36:09,753 INFO L78 Accepts]: Start accepts. Automaton has 4213 states. Word has length 42 [2021-01-26 17:36:09,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:09,757 INFO L481 AbstractCegarLoop]: Abstraction has 4213 states. [2021-01-26 17:36:09,757 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) [2021-01-26 17:36:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states. [2021-01-26 17:36:09,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:36:09,773 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:09,773 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] [2021-01-26 17:36:09,773 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:36:09,774 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:09,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:09,775 INFO L82 PathProgramCache]: Analyzing trace with hash 429548758, now seen corresponding path program 1 times [2021-01-26 17:36:09,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:09,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617527770] [2021-01-26 17:36:09,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:09,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:09,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617527770] [2021-01-26 17:36:09,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:09,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:36:09,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173172877] [2021-01-26 17:36:09,932 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:36:09,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:09,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:36:09,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:36:09,936 INFO L87 Difference]: Start difference. First operand 4213 states. 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) [2021-01-26 17:36:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:10,349 INFO L93 Difference]: Finished difference Result 6334 states and 21196 transitions. [2021-01-26 17:36:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:36:10,350 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 [2021-01-26 17:36:10,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:10,377 INFO L225 Difference]: With dead ends: 6334 [2021-01-26 17:36:10,377 INFO L226 Difference]: Without dead ends: 3115 [2021-01-26 17:36:10,378 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 [2021-01-26 17:36:10,378 INFO L78 Accepts]: Start accepts. Automaton has 3115 states. Word has length 45 [2021-01-26 17:36:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:10,379 INFO L481 AbstractCegarLoop]: Abstraction has 3115 states. [2021-01-26 17:36:10,379 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) [2021-01-26 17:36:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states. [2021-01-26 17:36:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:36:10,389 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:10,390 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] [2021-01-26 17:36:10,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:36:10,390 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:10,391 INFO L82 PathProgramCache]: Analyzing trace with hash -1422766975, now seen corresponding path program 1 times [2021-01-26 17:36:10,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:10,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023741350] [2021-01-26 17:36:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:10,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023741350] [2021-01-26 17:36:10,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:10,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:36:10,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347085206] [2021-01-26 17:36:10,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:36:10,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:10,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:36:10,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:36:10,572 INFO L87 Difference]: Start difference. First operand 3115 states. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2021-01-26 17:36:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:10,765 INFO L93 Difference]: Finished difference Result 3903 states and 12811 transitions. [2021-01-26 17:36:10,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:36:10,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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 [2021-01-26 17:36:10,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:10,790 INFO L225 Difference]: With dead ends: 3903 [2021-01-26 17:36:10,790 INFO L226 Difference]: Without dead ends: 2811 [2021-01-26 17:36:10,791 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:36:10,791 INFO L78 Accepts]: Start accepts. Automaton has 2811 states. Word has length 47 [2021-01-26 17:36:10,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:10,792 INFO L481 AbstractCegarLoop]: Abstraction has 2811 states. [2021-01-26 17:36:10,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 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) [2021-01-26 17:36:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states. [2021-01-26 17:36:10,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:36:10,800 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:10,800 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] [2021-01-26 17:36:10,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:36:10,801 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:10,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:10,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1775856222, now seen corresponding path program 1 times [2021-01-26 17:36:10,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:10,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150565922] [2021-01-26 17:36:10,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:10,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:10,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150565922] [2021-01-26 17:36:10,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:10,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:36:10,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798560499] [2021-01-26 17:36:10,925 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:36:10,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:10,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:36:10,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:36:10,927 INFO L87 Difference]: Start difference. First operand 2811 states. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-01-26 17:36:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:11,091 INFO L93 Difference]: Finished difference Result 2835 states and 9001 transitions. [2021-01-26 17:36:11,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:36:11,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-01-26 17:36:11,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:11,107 INFO L225 Difference]: With dead ends: 2835 [2021-01-26 17:36:11,107 INFO L226 Difference]: Without dead ends: 1935 [2021-01-26 17:36:11,108 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-26 17:36:11,108 INFO L78 Accepts]: Start accepts. Automaton has 1935 states. Word has length 48 [2021-01-26 17:36:11,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:11,108 INFO L481 AbstractCegarLoop]: Abstraction has 1935 states. [2021-01-26 17:36:11,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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) [2021-01-26 17:36:11,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states. [2021-01-26 17:36:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:36:11,115 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:11,115 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, 1] [2021-01-26 17:36:11,115 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:36:11,116 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:11,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:11,116 INFO L82 PathProgramCache]: Analyzing trace with hash -2020113217, now seen corresponding path program 1 times [2021-01-26 17:36:11,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:11,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118912587] [2021-01-26 17:36:11,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:11,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118912587] [2021-01-26 17:36:11,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:11,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-01-26 17:36:11,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628870872] [2021-01-26 17:36:11,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-01-26 17:36:11,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:11,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-01-26 17:36:11,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-01-26 17:36:11,299 INFO L87 Difference]: Start difference. First operand 1935 states. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-01-26 17:36:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:11,527 INFO L93 Difference]: Finished difference Result 1449 states and 4351 transitions. [2021-01-26 17:36:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:36:11,528 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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 50 [2021-01-26 17:36:11,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:11,536 INFO L225 Difference]: With dead ends: 1449 [2021-01-26 17:36:11,536 INFO L226 Difference]: Without dead ends: 981 [2021-01-26 17:36:11,537 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-01-26 17:36:11,537 INFO L78 Accepts]: Start accepts. Automaton has 981 states. Word has length 50 [2021-01-26 17:36:11,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:11,538 INFO L481 AbstractCegarLoop]: Abstraction has 981 states. [2021-01-26 17:36:11,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 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) [2021-01-26 17:36:11,538 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states. [2021-01-26 17:36:11,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:36:11,542 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:11,543 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, 1, 1, 1, 1, 1] [2021-01-26 17:36:11,543 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:36:11,543 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:11,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:11,544 INFO L82 PathProgramCache]: Analyzing trace with hash -54775455, now seen corresponding path program 1 times [2021-01-26 17:36:11,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:11,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695247369] [2021-01-26 17:36:11,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:11,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695247369] [2021-01-26 17:36:11,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:11,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:36:11,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458714166] [2021-01-26 17:36:11,663 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:36:11,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:11,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:36:11,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:36:11,664 INFO L87 Difference]: Start difference. First operand 981 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:36:11,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:11,811 INFO L93 Difference]: Finished difference Result 1424 states and 4153 transitions. [2021-01-26 17:36:11,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:36:11,812 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-26 17:36:11,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:11,819 INFO L225 Difference]: With dead ends: 1424 [2021-01-26 17:36:11,819 INFO L226 Difference]: Without dead ends: 831 [2021-01-26 17:36:11,820 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:36:11,820 INFO L78 Accepts]: Start accepts. Automaton has 831 states. Word has length 54 [2021-01-26 17:36:11,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:11,821 INFO L481 AbstractCegarLoop]: Abstraction has 831 states. [2021-01-26 17:36:11,821 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:36:11,822 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states. [2021-01-26 17:36:11,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:36:11,825 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:11,825 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, 1, 1, 1, 1, 1] [2021-01-26 17:36:11,826 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-26 17:36:11,826 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:11,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1436109045, now seen corresponding path program 2 times [2021-01-26 17:36:11,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:11,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695443187] [2021-01-26 17:36:11,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:12,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695443187] [2021-01-26 17:36:12,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:12,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:36:12,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393158598] [2021-01-26 17:36:12,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:36:12,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:12,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:36:12,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:36:12,028 INFO L87 Difference]: Start difference. First operand 831 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:36:12,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:12,159 INFO L93 Difference]: Finished difference Result 1354 states and 3902 transitions. [2021-01-26 17:36:12,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-26 17:36:12,160 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-26 17:36:12,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:12,175 INFO L225 Difference]: With dead ends: 1354 [2021-01-26 17:36:12,175 INFO L226 Difference]: Without dead ends: 771 [2021-01-26 17:36:12,176 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:36:12,176 INFO L78 Accepts]: Start accepts. Automaton has 771 states. Word has length 54 [2021-01-26 17:36:12,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:12,176 INFO L481 AbstractCegarLoop]: Abstraction has 771 states. [2021-01-26 17:36:12,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:36:12,177 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states. [2021-01-26 17:36:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-01-26 17:36:12,181 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:36:12,182 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, 1, 1, 1, 1, 1] [2021-01-26 17:36:12,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-26 17:36:12,182 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:36:12,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:36:12,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1423150337, now seen corresponding path program 3 times [2021-01-26 17:36:12,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:36:12,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448853137] [2021-01-26 17:36:12,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:36:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:36:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:36:12,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448853137] [2021-01-26 17:36:12,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:36:12,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:36:12,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819135034] [2021-01-26 17:36:12,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:36:12,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:36:12,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:36:12,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:36:12,361 INFO L87 Difference]: Start difference. First operand 771 states. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:36:12,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:36:12,475 INFO L93 Difference]: Finished difference Result 663 states and 1855 transitions. [2021-01-26 17:36:12,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-26 17:36:12,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-01-26 17:36:12,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:36:12,476 INFO L225 Difference]: With dead ends: 663 [2021-01-26 17:36:12,476 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:36:12,476 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:36:12,477 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 54 [2021-01-26 17:36:12,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:36:12,477 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:36:12,477 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:36:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:36:12,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:36:12,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-26 17:36:12,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:36:12 BasicIcfg [2021-01-26 17:36:12,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:36:12,485 INFO L168 Benchmark]: Toolchain (without parser) took 6410.76 ms. Allocated memory was 302.0 MB in the beginning and 700.4 MB in the end (delta: 398.5 MB). Free memory was 277.4 MB in the beginning and 600.3 MB in the end (delta: -322.9 MB). Peak memory consumption was 77.9 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:12,486 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:36:12,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 681.74 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:12,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.69 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 283.6 MB in the end (delta: -38.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:12,488 INFO L168 Benchmark]: Boogie Preprocessor took 27.45 ms. Allocated memory is still 302.0 MB. Free memory was 283.6 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:36:12,489 INFO L168 Benchmark]: RCFGBuilder took 596.70 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 258.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:12,490 INFO L168 Benchmark]: TraceAbstraction took 5022.10 ms. Allocated memory was 302.0 MB in the beginning and 700.4 MB in the end (delta: 398.5 MB). Free memory was 258.4 MB in the beginning and 600.3 MB in the end (delta: -341.9 MB). Peak memory consumption was 56.5 MB. Max. memory is 16.0 GB. [2021-01-26 17:36:12,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 302.0 MB. Free memory is still 272.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 681.74 ms. Allocated memory is still 302.0 MB. Free memory was 276.4 MB in the beginning and 245.6 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 65.69 ms. Allocated memory is still 302.0 MB. Free memory was 245.6 MB in the beginning and 283.6 MB in the end (delta: -38.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.45 ms. Allocated memory is still 302.0 MB. Free memory was 283.6 MB in the beginning and 282.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 596.70 ms. Allocated memory is still 302.0 MB. Free memory was 282.5 MB in the beginning and 258.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 5022.10 ms. Allocated memory was 302.0 MB in the beginning and 700.4 MB in the end (delta: 398.5 MB). Free memory was 258.4 MB in the beginning and 600.3 MB in the end (delta: -341.9 MB). Peak memory consumption was 56.5 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, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.9s, HoareTripleCheckerStatistics: 747 SDtfs, 970 SDslu, 2501 SDs, 0 SdLazy, 310 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 394 NumberOfCodeBlocks, 394 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 45628 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...