/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/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 14:41:56,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 14:41:56,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 14:41:56,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 14:41:56,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 14:41:56,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 14:41:56,482 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 14:41:56,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 14:41:56,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 14:41:56,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 14:41:56,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 14:41:56,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 14:41:56,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 14:41:56,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 14:41:56,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 14:41:56,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 14:41:56,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 14:41:56,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 14:41:56,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 14:41:56,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 14:41:56,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 14:41:56,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 14:41:56,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 14:41:56,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 14:41:56,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 14:41:56,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 14:41:56,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 14:41:56,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 14:41:56,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 14:41:56,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 14:41:56,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 14:41:56,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 14:41:56,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 14:41:56,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 14:41:56,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 14:41:56,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 14:41:56,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 14:41:56,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 14:41:56,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 14:41:56,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 14:41:56,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 14:41:56,572 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 14:41:56,635 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 14:41:56,636 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 14:41:56,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 14:41:56,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 14:41:56,642 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 14:41:56,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 14:41:56,643 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 14:41:56,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 14:41:56,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 14:41:56,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 14:41:56,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 14:41:56,645 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 14:41:56,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 14:41:56,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 14:41:56,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 14:41:56,647 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 14:41:56,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 14:41:56,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 14:41:56,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 14:41:56,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 14:41:56,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 14:41:56,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 14:41:56,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 14:41:56,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 14:41:56,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 14:41:56,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 14:41:56,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 14:41:56,651 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 14:41:56,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 14:41:56,651 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 14:41:56,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 14:41:57,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 14:41:57,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 14:41:57,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 14:41:57,165 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 14:41:57,166 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 14:41:57,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2021-01-20 14:41:57,253 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6fae7686/603f94c2a47d419d9160e9f9c564dfbc/FLAG015255ecf [2021-01-20 14:41:58,068 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 14:41:58,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2021-01-20 14:41:58,091 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6fae7686/603f94c2a47d419d9160e9f9c564dfbc/FLAG015255ecf [2021-01-20 14:41:58,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6fae7686/603f94c2a47d419d9160e9f9c564dfbc [2021-01-20 14:41:58,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 14:41:58,287 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 14:41:58,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 14:41:58,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 14:41:58,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 14:41:58,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:41:58" (1/1) ... [2021-01-20 14:41:58,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8c64f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:58, skipping insertion in model container [2021-01-20 14:41:58,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 02:41:58" (1/1) ... [2021-01-20 14:41:58,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 14:41:58,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 14:41:58,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:41:58,885 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 14:41:58,977 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 14:41:59,142 INFO L208 MainTranslator]: Completed translation [2021-01-20 14:41:59,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59 WrapperNode [2021-01-20 14:41:59,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 14:41:59,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 14:41:59,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 14:41:59,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 14:41:59,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 14:41:59,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 14:41:59,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 14:41:59,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 14:41:59,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (1/1) ... [2021-01-20 14:41:59,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 14:41:59,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 14:41:59,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 14:41:59,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 14:41:59,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (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 14:41:59,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 14:41:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 14:41:59,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 14:41:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 14:41:59,353 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-20 14:41:59,353 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-20 14:41:59,354 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-20 14:41:59,355 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-20 14:41:59,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 14:41:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 14:41:59,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 14:41:59,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 14:41:59,358 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 14:41:59,842 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 14:41:59,843 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-20 14:41:59,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:41:59 BoogieIcfgContainer [2021-01-20 14:41:59,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 14:41:59,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 14:41:59,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 14:41:59,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 14:41:59,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 02:41:58" (1/3) ... [2021-01-20 14:41:59,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5024a9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:41:59, skipping insertion in model container [2021-01-20 14:41:59,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 02:41:59" (2/3) ... [2021-01-20 14:41:59,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5024a9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 02:41:59, skipping insertion in model container [2021-01-20 14:41:59,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 02:41:59" (3/3) ... [2021-01-20 14:41:59,854 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2021-01-20 14:41:59,870 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 14:41:59,871 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 14:41:59,875 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-20 14:41:59,876 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 14:41:59,919 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,920 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,920 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,921 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,921 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,923 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,923 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,923 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,924 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,924 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,925 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,925 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,925 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,926 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,926 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,926 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,927 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,930 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,931 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,931 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,933 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,939 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,939 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,940 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,940 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 14:41:59,942 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-20 14:41:59,956 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-01-20 14:41:59,980 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 14:41:59,980 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 14:41:59,980 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 14:41:59,981 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 14:41:59,981 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 14:41:59,981 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 14:41:59,981 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 14:41:59,981 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 14:41:59,993 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2021-01-20 14:42:00,097 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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 14:42:00,104 INFO L276 IsEmpty]: Start isEmpty. Operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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 14:42:00,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-01-20 14:42:00,138 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:42:00,138 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] [2021-01-20 14:42:00,139 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:42:00,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:42:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash 2018155564, now seen corresponding path program 1 times [2021-01-20 14:42:00,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:42:00,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536747468] [2021-01-20 14:42:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:42:00,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:42:00,618 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 14:42:00,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536747468] [2021-01-20 14:42:00,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:42:00,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:42:00,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557966618] [2021-01-20 14:42:00,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:42:00,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:42:00,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:42:00,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:42:00,651 INFO L87 Difference]: Start difference. First operand has 1320 states, 1318 states have (on average 2.7511380880121394) internal successors, (3626), 1319 states have internal predecessors, (3626), 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 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 14:42:00,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:42:00,960 INFO L93 Difference]: Finished difference Result 1586 states and 4134 transitions. [2021-01-20 14:42:00,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:42:00,963 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 36 [2021-01-20 14:42:00,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:42:00,987 INFO L225 Difference]: With dead ends: 1586 [2021-01-20 14:42:00,987 INFO L226 Difference]: Without dead ends: 669 [2021-01-20 14:42:00,989 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-20 14:42:00,990 INFO L78 Accepts]: Start accepts. Automaton has 669 states. Word has length 36 [2021-01-20 14:42:00,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:42:00,992 INFO L481 AbstractCegarLoop]: Abstraction has 669 states. [2021-01-20 14:42:00,992 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 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 14:42:00,992 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states. [2021-01-20 14:42:01,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-01-20 14:42:01,001 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:42:01,001 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] [2021-01-20 14:42:01,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 14:42:01,001 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:42:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:42:01,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1725393197, now seen corresponding path program 1 times [2021-01-20 14:42:01,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:42:01,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686531805] [2021-01-20 14:42:01,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:42:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:42:01,315 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 14:42:01,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686531805] [2021-01-20 14:42:01,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:42:01,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:42:01,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723180093] [2021-01-20 14:42:01,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:42:01,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:42:01,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:42:01,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:42:01,321 INFO L87 Difference]: Start difference. First operand 669 states. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 14:42:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:42:01,662 INFO L93 Difference]: Finished difference Result 829 states and 2069 transitions. [2021-01-20 14:42:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:42:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 38 [2021-01-20 14:42:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:42:01,669 INFO L225 Difference]: With dead ends: 829 [2021-01-20 14:42:01,669 INFO L226 Difference]: Without dead ends: 444 [2021-01-20 14:42:01,670 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-20 14:42:01,670 INFO L78 Accepts]: Start accepts. Automaton has 444 states. Word has length 38 [2021-01-20 14:42:01,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:42:01,671 INFO L481 AbstractCegarLoop]: Abstraction has 444 states. [2021-01-20 14:42:01,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 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 14:42:01,672 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states. [2021-01-20 14:42:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-01-20 14:42:01,674 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:42:01,674 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 14:42:01,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 14:42:01,675 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:42:01,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:42:01,676 INFO L82 PathProgramCache]: Analyzing trace with hash -2141062468, now seen corresponding path program 1 times [2021-01-20 14:42:01,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:42:01,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39624293] [2021-01-20 14:42:01,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:42:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:42:01,874 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 14:42:01,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39624293] [2021-01-20 14:42:01,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:42:01,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:42:01,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272400857] [2021-01-20 14:42:01,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:42:01,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:42:01,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:42:01,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:42:01,878 INFO L87 Difference]: Start difference. First operand 444 states. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 14:42:02,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:42:02,118 INFO L93 Difference]: Finished difference Result 514 states and 1205 transitions. [2021-01-20 14:42:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-20 14:42:02,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 14:42:02,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:42:02,122 INFO L225 Difference]: With dead ends: 514 [2021-01-20 14:42:02,122 INFO L226 Difference]: Without dead ends: 378 [2021-01-20 14:42:02,123 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 14:42:02,123 INFO L78 Accepts]: Start accepts. Automaton has 378 states. Word has length 41 [2021-01-20 14:42:02,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:42:02,123 INFO L481 AbstractCegarLoop]: Abstraction has 378 states. [2021-01-20 14:42:02,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 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 14:42:02,124 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states. [2021-01-20 14:42:02,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-20 14:42:02,126 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:42:02,126 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 14:42:02,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 14:42:02,126 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:42:02,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:42:02,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1222811651, now seen corresponding path program 1 times [2021-01-20 14:42:02,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:42:02,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079570627] [2021-01-20 14:42:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:42:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:42:02,362 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 14:42:02,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079570627] [2021-01-20 14:42:02,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:42:02,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-20 14:42:02,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287166323] [2021-01-20 14:42:02,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-20 14:42:02,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:42:02,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-20 14:42:02,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-01-20 14:42:02,366 INFO L87 Difference]: Start difference. First operand 378 states. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:42:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:42:02,599 INFO L93 Difference]: Finished difference Result 327 states and 720 transitions. [2021-01-20 14:42:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-20 14:42:02,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-20 14:42:02,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:42:02,602 INFO L225 Difference]: With dead ends: 327 [2021-01-20 14:42:02,602 INFO L226 Difference]: Without dead ends: 231 [2021-01-20 14:42:02,602 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 14:42:02,603 INFO L78 Accepts]: Start accepts. Automaton has 231 states. Word has length 42 [2021-01-20 14:42:02,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:42:02,603 INFO L481 AbstractCegarLoop]: Abstraction has 231 states. [2021-01-20 14:42:02,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 14:42:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states. [2021-01-20 14:42:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-01-20 14:42:02,605 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 14:42:02,605 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] [2021-01-20 14:42:02,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 14:42:02,605 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 14:42:02,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 14:42:02,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1089745218, now seen corresponding path program 1 times [2021-01-20 14:42:02,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 14:42:02,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433782872] [2021-01-20 14:42:02,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 14:42:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 14:42:02,717 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 14:42:02,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433782872] [2021-01-20 14:42:02,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 14:42:02,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 14:42:02,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703583389] [2021-01-20 14:42:02,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 14:42:02,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 14:42:02,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 14:42:02,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 14:42:02,720 INFO L87 Difference]: Start difference. First operand 231 states. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 14:42:02,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 14:42:02,808 INFO L93 Difference]: Finished difference Result 195 states and 401 transitions. [2021-01-20 14:42:02,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 14:42:02,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 44 [2021-01-20 14:42:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 14:42:02,809 INFO L225 Difference]: With dead ends: 195 [2021-01-20 14:42:02,810 INFO L226 Difference]: Without dead ends: 0 [2021-01-20 14:42:02,810 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-20 14:42:02,811 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 44 [2021-01-20 14:42:02,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 14:42:02,811 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-20 14:42:02,811 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 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 14:42:02,811 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-20 14:42:02,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-20 14:42:02,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 14:42:02,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 02:42:02 BasicIcfg [2021-01-20 14:42:02,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 14:42:02,822 INFO L168 Benchmark]: Toolchain (without parser) took 4532.75 ms. Allocated memory is still 302.0 MB. Free memory was 275.9 MB in the beginning and 227.3 MB in the end (delta: 48.6 MB). Peak memory consumption was 50.8 MB. Max. memory is 16.0 GB. [2021-01-20 14:42:02,823 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:42:02,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 850.65 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 276.3 MB in the end (delta: -749.5 kB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:42:02,827 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.10 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 14:42:02,833 INFO L168 Benchmark]: Boogie Preprocessor took 44.25 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 14:42:02,834 INFO L168 Benchmark]: RCFGBuilder took 575.23 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 252.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:42:02,835 INFO L168 Benchmark]: TraceAbstraction took 2971.29 ms. Allocated memory is still 302.0 MB. Free memory was 252.2 MB in the beginning and 227.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.0 GB. [2021-01-20 14:42:02,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 302.0 MB. Free memory was 273.0 MB in the beginning and 272.9 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 850.65 ms. Allocated memory is still 302.0 MB. Free memory was 275.6 MB in the beginning and 276.3 MB in the end (delta: -749.5 kB). Peak memory consumption was 28.0 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 80.10 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 274.2 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 44.25 ms. Allocated memory is still 302.0 MB. Free memory was 274.2 MB in the beginning and 273.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 575.23 ms. Allocated memory is still 302.0 MB. Free memory was 273.2 MB in the beginning and 252.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2971.29 ms. Allocated memory is still 302.0 MB. Free memory was 252.2 MB in the beginning and 227.3 MB in the end (delta: 24.9 MB). Peak memory consumption was 27.0 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, 62 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 340 SDtfs, 438 SDslu, 1042 SDs, 0 SdLazy, 139 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1320occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 20970 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...