/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/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-6f57305 [2021-01-26 17:23:57,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-26 17:23:57,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-26 17:23:57,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-26 17:23:57,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-26 17:23:57,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-26 17:23:57,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-26 17:23:57,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-26 17:23:57,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-26 17:23:57,966 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-26 17:23:57,967 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-26 17:23:57,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-26 17:23:57,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-26 17:23:57,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-26 17:23:57,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-26 17:23:57,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-26 17:23:57,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-26 17:23:57,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-26 17:23:57,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-26 17:23:57,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-26 17:23:57,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-26 17:23:57,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-26 17:23:57,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-26 17:23:57,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-26 17:23:57,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-26 17:23:57,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-26 17:23:57,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-26 17:23:58,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-26 17:23:58,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-26 17:23:58,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-26 17:23:58,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-26 17:23:58,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-26 17:23:58,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-26 17:23:58,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-26 17:23:58,005 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-26 17:23:58,006 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-26 17:23:58,007 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-01-26 17:23:58,039 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-26 17:23:58,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-26 17:23:58,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-26 17:23:58,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-26 17:23:58,042 INFO L138 SettingsManager]: * Use SBE=true [2021-01-26 17:23:58,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-26 17:23:58,042 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-26 17:23:58,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-26 17:23:58,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-26 17:23:58,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-26 17:23:58,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-26 17:23:58,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-26 17:23:58,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-26 17:23:58,044 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-26 17:23:58,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-26 17:23:58,044 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-26 17:23:58,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-26 17:23:58,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-26 17:23:58,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-26 17:23:58,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-26 17:23:58,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-26 17:23:58,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:23:58,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-26 17:23:58,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-26 17:23:58,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-26 17:23:58,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-26 17:23:58,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-26 17:23:58,047 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-26 17:23:58,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-26 17:23:58,047 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-26 17:23:58,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-26 17:23:58,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-26 17:23:58,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-26 17:23:58,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-26 17:23:58,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-26 17:23:58,546 INFO L275 PluginConnector]: CDTParser initialized [2021-01-26 17:23:58,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-01-26 17:23:58,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5181fea65/5b88402ef11f4661bb04a371f31f86a9/FLAG6b48ed90a [2021-01-26 17:23:59,419 INFO L306 CDTParser]: Found 1 translation units. [2021-01-26 17:23:59,420 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2021-01-26 17:23:59,442 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5181fea65/5b88402ef11f4661bb04a371f31f86a9/FLAG6b48ed90a [2021-01-26 17:23:59,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5181fea65/5b88402ef11f4661bb04a371f31f86a9 [2021-01-26 17:23:59,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-26 17:23:59,665 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-26 17:23:59,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-26 17:23:59,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-26 17:23:59,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-26 17:23:59,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:23:59" (1/1) ... [2021-01-26 17:23:59,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1edd03ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:23:59, skipping insertion in model container [2021-01-26 17:23:59,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 05:23:59" (1/1) ... [2021-01-26 17:23:59,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-26 17:23:59,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-26 17:24:00,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:24:00,195 INFO L203 MainTranslator]: Completed pre-run [2021-01-26 17:24:00,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-26 17:24:00,379 INFO L208 MainTranslator]: Completed translation [2021-01-26 17:24:00,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00 WrapperNode [2021-01-26 17:24:00,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-26 17:24:00,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-26 17:24:00,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-26 17:24:00,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-26 17:24:00,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-26 17:24:00,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-26 17:24:00,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-26 17:24:00,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-26 17:24:00,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... [2021-01-26 17:24:00,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-26 17:24:00,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-26 17:24:00,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-26 17:24:00,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-26 17:24:00,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-26 17:24:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-26 17:24:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-26 17:24:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-26 17:24:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-26 17:24:00,665 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-01-26 17:24:00,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-01-26 17:24:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-01-26 17:24:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-01-26 17:24:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-01-26 17:24:00,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-01-26 17:24:00,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-26 17:24:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-26 17:24:00,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-26 17:24:00,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-26 17:24:00,669 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-26 17:24:01,270 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-26 17:24:01,270 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2021-01-26 17:24:01,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:24:01 BoogieIcfgContainer [2021-01-26 17:24:01,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-26 17:24:01,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-26 17:24:01,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-26 17:24:01,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-26 17:24:01,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 05:23:59" (1/3) ... [2021-01-26 17:24:01,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b158d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:24:01, skipping insertion in model container [2021-01-26 17:24:01,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 05:24:00" (2/3) ... [2021-01-26 17:24:01,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26b158d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 05:24:01, skipping insertion in model container [2021-01-26 17:24:01,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 05:24:01" (3/3) ... [2021-01-26 17:24:01,289 INFO L111 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2021-01-26 17:24:01,312 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-26 17:24:01,312 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-26 17:24:01,316 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-26 17:24:01,318 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-26 17:24:01,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,365 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,365 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,366 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,366 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,367 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,368 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,369 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,369 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,370 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,370 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,371 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,373 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,374 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,375 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,375 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,376 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,377 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,377 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,377 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,377 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,378 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,379 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,390 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,391 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,391 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,391 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,405 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,405 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,406 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,409 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,410 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-26 17:24:01,415 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-01-26 17:24:01,430 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-01-26 17:24:01,475 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-26 17:24:01,475 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-26 17:24:01,475 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-26 17:24:01,475 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-26 17:24:01,475 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-26 17:24:01,476 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-26 17:24:01,476 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-26 17:24:01,476 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-26 17:24:01,495 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 86 places, 79 transitions, 173 flow [2021-01-26 17:24:02,518 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:02,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:02,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-01-26 17:24:02,626 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:24:02,627 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:24:02,628 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:24:02,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:24:02,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1557079206, now seen corresponding path program 1 times [2021-01-26 17:24:02,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:24:02,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012245471] [2021-01-26 17:24:02,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:24:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:24:03,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:24:03,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012245471] [2021-01-26 17:24:03,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:24:03,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:24:03,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244759036] [2021-01-26 17:24:03,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:24:03,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:24:03,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:24:03,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:24:03,316 INFO L87 Difference]: Start difference. First operand has 9848 states, 9846 states have (on average 3.614665854153971) internal successors, (35590), 9847 states have internal predecessors, (35590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:03,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:24:03,678 INFO L93 Difference]: Finished difference Result 11318 states and 39237 transitions. [2021-01-26 17:24:03,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:24:03,680 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-01-26 17:24:03,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:24:03,743 INFO L225 Difference]: With dead ends: 11318 [2021-01-26 17:24:03,743 INFO L226 Difference]: Without dead ends: 4213 [2021-01-26 17:24:03,745 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:24:03,745 INFO L78 Accepts]: Start accepts. Automaton has 4213 states. Word has length 42 [2021-01-26 17:24:03,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:24:03,747 INFO L481 AbstractCegarLoop]: Abstraction has 4213 states. [2021-01-26 17:24:03,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4213 states. [2021-01-26 17:24:03,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-01-26 17:24:03,765 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:24:03,765 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:24:03,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-26 17:24:03,766 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:24:03,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:24:03,767 INFO L82 PathProgramCache]: Analyzing trace with hash 348820663, now seen corresponding path program 1 times [2021-01-26 17:24:03,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:24:03,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253269245] [2021-01-26 17:24:03,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:24:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:24:03,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:24:03,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253269245] [2021-01-26 17:24:03,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:24:03,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:24:03,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799183297] [2021-01-26 17:24:03,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:24:03,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:24:03,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:24:03,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:24:03,935 INFO L87 Difference]: Start difference. First operand 4213 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) [2021-01-26 17:24:04,177 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-01-26 17:24:04,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:24:04,358 INFO L93 Difference]: Finished difference Result 6009 states and 20215 transitions. [2021-01-26 17:24:04,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:24:04,359 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 [2021-01-26 17:24:04,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:24:04,396 INFO L225 Difference]: With dead ends: 6009 [2021-01-26 17:24:04,396 INFO L226 Difference]: Without dead ends: 3853 [2021-01-26 17:24:04,397 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:24:04,398 INFO L78 Accepts]: Start accepts. Automaton has 3853 states. Word has length 45 [2021-01-26 17:24:04,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:24:04,398 INFO L481 AbstractCegarLoop]: Abstraction has 3853 states. [2021-01-26 17:24:04,399 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) [2021-01-26 17:24:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 3853 states. [2021-01-26 17:24:04,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-01-26 17:24:04,411 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:24:04,411 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:24:04,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-26 17:24:04,411 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:24:04,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:24:04,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1147073206, now seen corresponding path program 1 times [2021-01-26 17:24:04,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:24:04,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486284535] [2021-01-26 17:24:04,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:24:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:24:04,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:24:04,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486284535] [2021-01-26 17:24:04,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:24:04,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:24:04,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661024981] [2021-01-26 17:24:04,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:24:04,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:24:04,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:24:04,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:24:04,603 INFO L87 Difference]: Start difference. First operand 3853 states. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:24:04,882 INFO L93 Difference]: Finished difference Result 7073 states and 23211 transitions. [2021-01-26 17:24:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-26 17:24:04,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-01-26 17:24:04,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:24:04,916 INFO L225 Difference]: With dead ends: 7073 [2021-01-26 17:24:04,917 INFO L226 Difference]: Without dead ends: 4153 [2021-01-26 17:24:04,917 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:24:04,917 INFO L78 Accepts]: Start accepts. Automaton has 4153 states. Word has length 47 [2021-01-26 17:24:04,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:24:04,918 INFO L481 AbstractCegarLoop]: Abstraction has 4153 states. [2021-01-26 17:24:04,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states. [2021-01-26 17:24:04,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-01-26 17:24:04,930 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:24:04,930 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:24:04,930 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-26 17:24:04,930 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:24:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:24:04,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1202989078, now seen corresponding path program 1 times [2021-01-26 17:24:04,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:24:04,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888296033] [2021-01-26 17:24:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:24:04,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:24:05,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:24:05,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888296033] [2021-01-26 17:24:05,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:24:05,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-26 17:24:05,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253735555] [2021-01-26 17:24:05,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-26 17:24:05,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:24:05,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-26 17:24:05,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-26 17:24:05,093 INFO L87 Difference]: Start difference. First operand 4153 states. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:05,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:24:05,245 INFO L93 Difference]: Finished difference Result 4025 states and 12912 transitions. [2021-01-26 17:24:05,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-01-26 17:24:05,246 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-01-26 17:24:05,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:24:05,261 INFO L225 Difference]: With dead ends: 4025 [2021-01-26 17:24:05,261 INFO L226 Difference]: Without dead ends: 1802 [2021-01-26 17:24:05,262 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-01-26 17:24:05,262 INFO L78 Accepts]: Start accepts. Automaton has 1802 states. Word has length 48 [2021-01-26 17:24:05,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:24:05,263 INFO L481 AbstractCegarLoop]: Abstraction has 1802 states. [2021-01-26 17:24:05,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:05,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states. [2021-01-26 17:24:05,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-26 17:24:05,269 INFO L496 BasicCegarLoop]: Found error trace [2021-01-26 17:24:05,269 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-26 17:24:05,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-26 17:24:05,269 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-26 17:24:05,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-26 17:24:05,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1518373285, now seen corresponding path program 1 times [2021-01-26 17:24:05,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-26 17:24:05,271 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950506436] [2021-01-26 17:24:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-26 17:24:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-26 17:24:05,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-26 17:24:05,387 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950506436] [2021-01-26 17:24:05,387 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-26 17:24:05,387 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-26 17:24:05,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481383968] [2021-01-26 17:24:05,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-26 17:24:05,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-26 17:24:05,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-26 17:24:05,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-01-26 17:24:05,389 INFO L87 Difference]: Start difference. First operand 1802 states. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:05,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-26 17:24:05,596 INFO L93 Difference]: Finished difference Result 1482 states and 4643 transitions. [2021-01-26 17:24:05,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-26 17:24:05,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-26 17:24:05,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-26 17:24:05,597 INFO L225 Difference]: With dead ends: 1482 [2021-01-26 17:24:05,597 INFO L226 Difference]: Without dead ends: 0 [2021-01-26 17:24:05,598 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-01-26 17:24:05,598 INFO L78 Accepts]: Start accepts. Automaton has 0 states. Word has length 50 [2021-01-26 17:24:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-26 17:24:05,598 INFO L481 AbstractCegarLoop]: Abstraction has 0 states. [2021-01-26 17:24:05,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-26 17:24:05,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states. [2021-01-26 17:24:05,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-26 17:24:05,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-26 17:24:05,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.01 05:24:05 BasicIcfg [2021-01-26 17:24:05,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-26 17:24:05,607 INFO L168 Benchmark]: Toolchain (without parser) took 5949.52 ms. Allocated memory was 302.0 MB in the beginning and 625.0 MB in the end (delta: 323.0 MB). Free memory was 277.0 MB in the beginning and 515.2 MB in the end (delta: -238.2 MB). Peak memory consumption was 87.3 MB. Max. memory is 16.0 GB. [2021-01-26 17:24:05,608 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-26 17:24:05,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.60 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.4 MB in the end (delta: 30.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:24:05,610 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.57 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-26 17:24:05,610 INFO L168 Benchmark]: Boogie Preprocessor took 94.99 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 284.6 MB in the end (delta: -41.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:24:05,611 INFO L168 Benchmark]: RCFGBuilder took 699.23 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 261.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-01-26 17:24:05,612 INFO L168 Benchmark]: TraceAbstraction took 4325.58 ms. Allocated memory was 302.0 MB in the beginning and 625.0 MB in the end (delta: 323.0 MB). Free memory was 261.5 MB in the beginning and 515.2 MB in the end (delta: -253.7 MB). Peak memory consumption was 72.4 MB. Max. memory is 16.0 GB. [2021-01-26 17:24:05,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 713.60 ms. Allocated memory is still 302.0 MB. Free memory was 276.1 MB in the beginning and 245.4 MB in the end (delta: 30.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 92.57 ms. Allocated memory is still 302.0 MB. Free memory was 245.4 MB in the beginning and 243.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 94.99 ms. Allocated memory is still 302.0 MB. Free memory was 243.4 MB in the beginning and 284.6 MB in the end (delta: -41.2 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.0 GB. * RCFGBuilder took 699.23 ms. Allocated memory is still 302.0 MB. Free memory was 284.6 MB in the beginning and 261.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 4325.58 ms. Allocated memory was 302.0 MB in the beginning and 625.0 MB in the end (delta: 323.0 MB). Free memory was 261.5 MB in the beginning and 515.2 MB in the end (delta: -253.7 MB). Peak memory consumption was 72.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 560 SDtfs, 689 SDslu, 1818 SDs, 0 SdLazy, 159 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9848occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 227 ConstructedInterpolants, 0 QuantifiedInterpolants, 26855 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...