/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/safe036_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:51:39,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:51:39,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:51:39,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:51:39,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:51:39,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:51:39,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:51:39,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:51:39,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:51:39,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:51:39,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:51:39,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:51:39,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:51:39,620 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:51:39,621 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:51:39,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:51:39,625 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:51:39,626 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:51:39,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:51:39,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:51:39,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:51:39,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:51:39,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:51:39,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:51:39,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:51:39,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:51:39,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:51:39,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:51:39,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:51:39,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:51:39,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:51:39,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:51:39,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:51:39,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:51:39,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:51:39,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:51:39,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:51:39,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:51:39,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:51:39,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:51:39,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:51:39,660 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 [2021-01-20 14:51:39,688 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:51:39,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:51:39,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:51:39,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:51:39,690 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:51:39,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:51:39,691 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:51:39,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:51:39,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:51:39,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:51:39,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:51:39,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:51:39,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:51:39,692 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:51:39,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:51:39,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:51:39,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:51:39,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:51:39,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:51:39,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:51:39,694 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:51:39,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:51:39,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:51:39,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:51:39,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:51:39,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:51:39,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:51:39,695 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:51:39,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:51:39,695 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:51:39,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:51:40,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:51:40,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:51:40,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:51:40,101 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:51:40,102 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:51:40,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2021-01-20 14:51:40,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df868fac9/f6a2576c5cb145febc1087d979ab217e/FLAG609f1d235 [2021-01-20 14:51:40,833 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:51:40,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe036_power.oepc.i [2021-01-20 14:51:40,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df868fac9/f6a2576c5cb145febc1087d979ab217e/FLAG609f1d235 [2021-01-20 14:51:41,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df868fac9/f6a2576c5cb145febc1087d979ab217e [2021-01-20 14:51:41,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:51:41,148 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:51:41,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:51:41,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:51:41,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:51:41,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@260dde8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41, skipping insertion in model container [2021-01-20 14:51:41,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,175 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:51:41,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:51:41,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:51:41,625 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:51:41,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:51:41,861 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:51:41,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41 WrapperNode [2021-01-20 14:51:41,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:51:41,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:51:41,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:51:41,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:51:41,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:51:41,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:51:41,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:51:41,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:51:41,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (1/1) ... [2021-01-20 14:51:41,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:51:41,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:51:41,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:51:41,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:51:41,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (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 14:51:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:51:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:51:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:51:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:51:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:51:42,024 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:51:42,024 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:51:42,024 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:51:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:51:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:51:42,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:51:42,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:51:42,027 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 14:51:42,458 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:51:42,459 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:51:42,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:51:42 BoogieIcfgContainer [2021-01-20 14:51:42,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:51:42,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:51:42,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:51:42,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:51:42,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:51:41" (1/3) ... [2021-01-20 14:51:42,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711cf11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:51:42, skipping insertion in model container [2021-01-20 14:51:42,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:51:41" (2/3) ... [2021-01-20 14:51:42,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@711cf11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:51:42, skipping insertion in model container [2021-01-20 14:51:42,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:51:42" (3/3) ... [2021-01-20 14:51:42,475 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_power.oepc.i [2021-01-20 14:51:42,492 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:51:42,493 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:51:42,497 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:51:42,498 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:51:42,547 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,548 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,548 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,548 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,549 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,549 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,549 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,551 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,552 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,553 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,553 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,554 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,554 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,555 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,559 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,560 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,561 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,567 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,568 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,568 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:51:42,575 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:51:42,588 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 14:51:42,625 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:51:42,625 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:51:42,626 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:51:42,627 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:51:42,627 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:51:42,627 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:51:42,627 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:51:42,627 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:51:42,643 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 65 transitions, 140 flow [2021-01-20 14:51:42,754 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 14:51:42,761 INFO L276 IsEmpty]: Start isEmpty. Operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 14:51:42,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-01-20 14:51:42,782 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:42,783 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] [2021-01-20 14:51:42,784 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:42,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:42,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1361290816, now seen corresponding path program 1 times [2021-01-20 14:51:42,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:42,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166830285] [2021-01-20 14:51:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:43,275 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 14:51:43,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166830285] [2021-01-20 14:51:43,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:43,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:51:43,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588998896] [2021-01-20 14:51:43,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:51:43,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:43,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:51:43,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:51:43,306 INFO L87 Difference]: Start difference. First operand has 1321 states, 1319 states have (on average 2.7498104624715696) internal successors, (3627), 1320 states have internal predecessors, (3627), 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 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 14:51:43,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:43,639 INFO L93 Difference]: Finished difference Result 1116 states and 2790 transitions. [2021-01-20 14:51:43,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:51:43,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 37 [2021-01-20 14:51:43,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:43,663 INFO L225 Difference]: With dead ends: 1116 [2021-01-20 14:51:43,663 INFO L226 Difference]: Without dead ends: 574 [2021-01-20 14:51:43,665 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 [2021-01-20 14:51:43,665 INFO L78 Accepts]: Start accepts. Automaton has 574 states. Word has length 37 [2021-01-20 14:51:43,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:43,667 INFO L481 AbstractCegarLoop]: Abstraction has 574 states. [2021-01-20 14:51:43,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 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 14:51:43,667 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2021-01-20 14:51:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 14:51:43,675 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:43,675 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] [2021-01-20 14:51:43,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:51:43,675 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:43,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:43,676 INFO L82 PathProgramCache]: Analyzing trace with hash 160702942, now seen corresponding path program 1 times [2021-01-20 14:51:43,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:43,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113228520] [2021-01-20 14:51:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:44,007 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 14:51:44,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113228520] [2021-01-20 14:51:44,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:44,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:44,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854880391] [2021-01-20 14:51:44,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:44,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:44,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:44,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:44,013 INFO L87 Difference]: Start difference. First operand 574 states. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 14:51:44,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:44,327 INFO L93 Difference]: Finished difference Result 394 states and 892 transitions. [2021-01-20 14:51:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:51:44,328 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 41 [2021-01-20 14:51:44,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:44,331 INFO L225 Difference]: With dead ends: 394 [2021-01-20 14:51:44,332 INFO L226 Difference]: Without dead ends: 262 [2021-01-20 14:51:44,333 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-01-20 14:51:44,333 INFO L78 Accepts]: Start accepts. Automaton has 262 states. Word has length 41 [2021-01-20 14:51:44,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:44,333 INFO L481 AbstractCegarLoop]: Abstraction has 262 states. [2021-01-20 14:51:44,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 14:51:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states. [2021-01-20 14:51:44,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 14:51:44,336 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:44,337 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 14:51:44,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:51:44,337 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:44,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:44,338 INFO L82 PathProgramCache]: Analyzing trace with hash 96714268, now seen corresponding path program 1 times [2021-01-20 14:51:44,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:44,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079037560] [2021-01-20 14:51:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:44,531 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 14:51:44,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079037560] [2021-01-20 14:51:44,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:44,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:44,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261771899] [2021-01-20 14:51:44,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:44,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:44,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:44,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:44,534 INFO L87 Difference]: Start difference. First operand 262 states. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 14:51:44,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:44,714 INFO L93 Difference]: Finished difference Result 383 states and 832 transitions. [2021-01-20 14:51:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:51:44,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 14:51:44,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:44,718 INFO L225 Difference]: With dead ends: 383 [2021-01-20 14:51:44,718 INFO L226 Difference]: Without dead ends: 232 [2021-01-20 14:51:44,719 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:51:44,719 INFO L78 Accepts]: Start accepts. Automaton has 232 states. Word has length 45 [2021-01-20 14:51:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:44,720 INFO L481 AbstractCegarLoop]: Abstraction has 232 states. [2021-01-20 14:51:44,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 14:51:44,720 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states. [2021-01-20 14:51:44,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-20 14:51:44,722 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:51:44,722 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 14:51:44,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:51:44,723 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:51:44,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:51:44,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1383140064, now seen corresponding path program 2 times [2021-01-20 14:51:44,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:51:44,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933502936] [2021-01-20 14:51:44,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:51:44,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:51:44,964 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 14:51:44,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933502936] [2021-01-20 14:51:44,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:51:44,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:51:44,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289393676] [2021-01-20 14:51:44,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:51:44,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:51:44,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:51:44,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:51:44,970 INFO L87 Difference]: Start difference. First operand 232 states. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 14:51:45,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:51:45,160 INFO L93 Difference]: Finished difference Result 196 states and 402 transitions. [2021-01-20 14:51:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-20 14:51:45,162 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 14:51:45,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:51:45,163 INFO L225 Difference]: With dead ends: 196 [2021-01-20 14:51:45,163 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:51:45,166 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:51:45,166 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 45 [2021-01-20 14:51:45,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:51:45,167 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:51:45,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 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 14:51:45,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:51:45,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:51:45,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:51:45,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:51:45 BasicIcfg [2021-01-20 14:51:45,174 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:51:45,178 INFO L168 Benchmark]: Toolchain (without parser) took 4027.96 ms. Allocated memory is still 323.0 MB. Free memory was 296.4 MB in the beginning and 297.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 186.2 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:45,179 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 323.0 MB. Free memory was 294.0 MB in the beginning and 293.9 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:51:45,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.49 ms. Allocated memory is still 323.0 MB. Free memory was 296.1 MB in the beginning and 297.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:45,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.38 ms. Allocated memory is still 323.0 MB. Free memory was 297.6 MB in the beginning and 295.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:45,187 INFO L168 Benchmark]: Boogie Preprocessor took 29.30 ms. Allocated memory is still 323.0 MB. Free memory was 295.5 MB in the beginning and 294.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:45,193 INFO L168 Benchmark]: RCFGBuilder took 518.38 ms. Allocated memory is still 323.0 MB. Free memory was 294.4 MB in the beginning and 272.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:45,194 INFO L168 Benchmark]: TraceAbstraction took 2708.71 ms. Allocated memory is still 323.0 MB. Free memory was 272.5 MB in the beginning and 297.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 162.7 MB. Max. memory is 16.0 GB. [2021-01-20 14:51:45,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 323.0 MB. Free memory was 294.0 MB in the beginning and 293.9 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 711.49 ms. Allocated memory is still 323.0 MB. Free memory was 296.1 MB in the beginning and 297.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.38 ms. Allocated memory is still 323.0 MB. Free memory was 297.6 MB in the beginning and 295.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 29.30 ms. Allocated memory is still 323.0 MB. Free memory was 295.5 MB in the beginning and 294.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 518.38 ms. Allocated memory is still 323.0 MB. Free memory was 294.4 MB in the beginning and 272.5 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2708.71 ms. Allocated memory is still 323.0 MB. Free memory was 272.5 MB in the beginning and 297.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 162.7 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 268 SDtfs, 329 SDslu, 927 SDs, 0 SdLazy, 116 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1321occurred 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, 0.8s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 16640 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...