/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/safe033_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 18:17:00,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 18:17:00,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 18:17:00,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 18:17:00,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 18:17:00,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 18:17:00,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 18:17:00,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 18:17:00,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 18:17:00,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 18:17:00,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 18:17:00,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 18:17:00,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 18:17:00,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 18:17:00,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 18:17:00,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 18:17:00,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 18:17:00,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 18:17:00,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 18:17:00,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 18:17:00,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 18:17:00,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 18:17:00,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 18:17:00,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 18:17:00,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-11 18:17:00,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 18:17:00,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 18:17:00,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 18:17:00,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 18:17:00,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 18:17:00,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 18:17:00,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 18:17:00,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 18:17:00,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 18:17:00,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 18:17:00,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 18:17:00,267 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 [2020-11-11 18:17:00,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 18:17:00,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 18:17:00,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 18:17:00,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 18:17:00,321 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 18:17:00,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 18:17:00,321 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 18:17:00,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 18:17:00,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 18:17:00,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 18:17:00,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 18:17:00,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 18:17:00,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 18:17:00,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 18:17:00,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 18:17:00,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 18:17:00,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 18:17:00,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 18:17:00,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 18:17:00,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 18:17:00,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 18:17:00,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 18:17:00,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 18:17:00,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 18:17:00,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 18:17:00,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 18:17:00,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 18:17:00,326 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-11-11 18:17:00,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 18:17:00,327 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 18:17:00,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 18:17:00,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 18:17:00,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 18:17:00,769 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 18:17:00,770 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 18:17:00,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-11-11 18:17:00,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48001850/fc767c7e4b674f13919d5a226da38bb4/FLAGf3ea41d0b [2020-11-11 18:17:01,708 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 18:17:01,713 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe033_tso.opt.i [2020-11-11 18:17:01,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48001850/fc767c7e4b674f13919d5a226da38bb4/FLAGf3ea41d0b [2020-11-11 18:17:01,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d48001850/fc767c7e4b674f13919d5a226da38bb4 [2020-11-11 18:17:01,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 18:17:01,964 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 18:17:01,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:01,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 18:17:01,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 18:17:01,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e1efbb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:01, skipping insertion in model container [2020-11-11 18:17:01,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 06:17:01" (1/1) ... [2020-11-11 18:17:01,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 18:17:02,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 18:17:02,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:02,499 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 18:17:02,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 18:17:02,672 INFO L208 MainTranslator]: Completed translation [2020-11-11 18:17:02,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02 WrapperNode [2020-11-11 18:17:02,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 18:17:02,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:02,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 18:17:02,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 18:17:02,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,700 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 18:17:02,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 18:17:02,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 18:17:02,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 18:17:02,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,745 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (1/1) ... [2020-11-11 18:17:02,753 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 18:17:02,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 18:17:02,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 18:17:02,755 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 18:17:02,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (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 [2020-11-11 18:17:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 18:17:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 18:17:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 18:17:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 18:17:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 18:17:02,859 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 18:17:02,859 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 18:17:02,860 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 18:17:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 18:17:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 18:17:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 18:17:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 18:17:02,864 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 18:17:03,408 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 18:17:03,408 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 18:17:03,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:03 BoogieIcfgContainer [2020-11-11 18:17:03,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 18:17:03,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 18:17:03,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 18:17:03,419 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 18:17:03,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 06:17:01" (1/3) ... [2020-11-11 18:17:03,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138bacbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:03, skipping insertion in model container [2020-11-11 18:17:03,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 06:17:02" (2/3) ... [2020-11-11 18:17:03,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138bacbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 06:17:03, skipping insertion in model container [2020-11-11 18:17:03,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 06:17:03" (3/3) ... [2020-11-11 18:17:03,423 INFO L111 eAbstractionObserver]: Analyzing ICFG safe033_tso.opt.i [2020-11-11 18:17:03,441 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 18:17:03,441 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 18:17:03,445 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 18:17:03,446 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 18:17:03,481 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,482 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,482 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,483 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,483 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,485 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,486 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,486 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,487 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,487 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,488 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,488 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,489 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,493 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,494 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,494 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,495 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,503 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,504 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 18:17:03,506 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 18:17:03,520 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-11 18:17:03,560 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 18:17:03,561 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 18:17:03,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 18:17:03,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 18:17:03,562 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 18:17:03,562 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 18:17:03,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 18:17:03,562 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 18:17:03,579 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-11-11 18:17:03,681 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) [2020-11-11 18:17:03,688 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) [2020-11-11 18:17:03,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-11 18:17:03,708 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:03,709 INFO L494 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] [2020-11-11 18:17:03,709 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:03,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:03,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1850588041, now seen corresponding path program 1 times [2020-11-11 18:17:03,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:03,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130733738] [2020-11-11 18:17:03,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:04,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:04,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130733738] [2020-11-11 18:17:04,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:04,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:04,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594980426] [2020-11-11 18:17:04,142 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:04,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:04,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:04,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:04,166 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) [2020-11-11 18:17:04,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:04,393 INFO L93 Difference]: Finished difference Result 1714 states and 4478 transitions. [2020-11-11 18:17:04,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:04,396 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 [2020-11-11 18:17:04,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:04,417 INFO L225 Difference]: With dead ends: 1714 [2020-11-11 18:17:04,417 INFO L226 Difference]: Without dead ends: 733 [2020-11-11 18:17:04,419 INFO L749 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 [2020-11-11 18:17:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2020-11-11 18:17:04,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2020-11-11 18:17:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 2.557377049180328) internal successors, (1872), 732 states have internal predecessors, (1872), 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) [2020-11-11 18:17:04,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1872 transitions. [2020-11-11 18:17:04,543 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1872 transitions. Word has length 36 [2020-11-11 18:17:04,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:04,544 INFO L481 AbstractCegarLoop]: Abstraction has 733 states and 1872 transitions. [2020-11-11 18:17:04,545 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) [2020-11-11 18:17:04,545 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1872 transitions. [2020-11-11 18:17:04,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-11-11 18:17:04,551 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:04,551 INFO L494 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] [2020-11-11 18:17:04,552 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 18:17:04,552 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:04,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:04,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1562684454, now seen corresponding path program 1 times [2020-11-11 18:17:04,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:04,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250933828] [2020-11-11 18:17:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:04,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:04,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250933828] [2020-11-11 18:17:04,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:04,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:04,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93019550] [2020-11-11 18:17:04,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:04,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:04,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:04,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:04,799 INFO L87 Difference]: Start difference. First operand 733 states and 1872 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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) [2020-11-11 18:17:04,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:04,950 INFO L93 Difference]: Finished difference Result 769 states and 1891 transitions. [2020-11-11 18:17:04,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:04,951 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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 [2020-11-11 18:17:04,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:04,955 INFO L225 Difference]: With dead ends: 769 [2020-11-11 18:17:04,956 INFO L226 Difference]: Without dead ends: 573 [2020-11-11 18:17:04,957 INFO L749 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 [2020-11-11 18:17:04,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2020-11-11 18:17:04,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2020-11-11 18:17:04,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 572 states have (on average 2.4335664335664338) internal successors, (1392), 572 states have internal predecessors, (1392), 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) [2020-11-11 18:17:04,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 1392 transitions. [2020-11-11 18:17:04,982 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 1392 transitions. Word has length 38 [2020-11-11 18:17:04,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:04,982 INFO L481 AbstractCegarLoop]: Abstraction has 573 states and 1392 transitions. [2020-11-11 18:17:04,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 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) [2020-11-11 18:17:04,983 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 1392 transitions. [2020-11-11 18:17:04,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-11 18:17:04,985 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:04,985 INFO L494 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] [2020-11-11 18:17:04,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 18:17:04,985 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:04,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:04,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1629268999, now seen corresponding path program 1 times [2020-11-11 18:17:04,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:04,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950687971] [2020-11-11 18:17:04,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:05,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950687971] [2020-11-11 18:17:05,107 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:05,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-11 18:17:05,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704631777] [2020-11-11 18:17:05,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 18:17:05,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:05,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 18:17:05,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-11 18:17:05,109 INFO L87 Difference]: Start difference. First operand 573 states and 1392 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:05,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:05,263 INFO L93 Difference]: Finished difference Result 907 states and 2168 transitions. [2020-11-11 18:17:05,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-11 18:17:05,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2020-11-11 18:17:05,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:05,269 INFO L225 Difference]: With dead ends: 907 [2020-11-11 18:17:05,269 INFO L226 Difference]: Without dead ends: 621 [2020-11-11 18:17:05,269 INFO L749 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 [2020-11-11 18:17:05,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2020-11-11 18:17:05,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 525. [2020-11-11 18:17:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 524 states have (on average 2.364503816793893) internal successors, (1239), 524 states have internal predecessors, (1239), 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) [2020-11-11 18:17:05,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 1239 transitions. [2020-11-11 18:17:05,292 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 1239 transitions. Word has length 40 [2020-11-11 18:17:05,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:05,292 INFO L481 AbstractCegarLoop]: Abstraction has 525 states and 1239 transitions. [2020-11-11 18:17:05,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:05,293 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 1239 transitions. [2020-11-11 18:17:05,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-11 18:17:05,294 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:05,295 INFO L494 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] [2020-11-11 18:17:05,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 18:17:05,295 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:05,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:05,296 INFO L82 PathProgramCache]: Analyzing trace with hash 252127285, now seen corresponding path program 1 times [2020-11-11 18:17:05,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:05,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78546297] [2020-11-11 18:17:05,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:05,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78546297] [2020-11-11 18:17:05,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:05,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:05,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643122109] [2020-11-11 18:17:05,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:05,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:05,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:05,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:05,474 INFO L87 Difference]: Start difference. First operand 525 states and 1239 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:05,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:05,638 INFO L93 Difference]: Finished difference Result 393 states and 869 transitions. [2020-11-11 18:17:05,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-11 18:17:05,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2020-11-11 18:17:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:05,640 INFO L225 Difference]: With dead ends: 393 [2020-11-11 18:17:05,640 INFO L226 Difference]: Without dead ends: 211 [2020-11-11 18:17:05,641 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-11-11 18:17:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2020-11-11 18:17:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2020-11-11 18:17:05,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 2.119047619047619) internal successors, (445), 210 states have internal predecessors, (445), 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) [2020-11-11 18:17:05,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 445 transitions. [2020-11-11 18:17:05,650 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 445 transitions. Word has length 40 [2020-11-11 18:17:05,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:05,650 INFO L481 AbstractCegarLoop]: Abstraction has 211 states and 445 transitions. [2020-11-11 18:17:05,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 18:17:05,650 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 445 transitions. [2020-11-11 18:17:05,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-11-11 18:17:05,651 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 18:17:05,652 INFO L494 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] [2020-11-11 18:17:05,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 18:17:05,652 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 18:17:05,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 18:17:05,653 INFO L82 PathProgramCache]: Analyzing trace with hash -163535177, now seen corresponding path program 1 times [2020-11-11 18:17:05,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 18:17:05,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935957769] [2020-11-11 18:17:05,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 18:17:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 18:17:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 18:17:05,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935957769] [2020-11-11 18:17:05,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 18:17:05,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-11 18:17:05,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754374255] [2020-11-11 18:17:05,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-11 18:17:05,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 18:17:05,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-11 18:17:05,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-11 18:17:05,784 INFO L87 Difference]: Start difference. First operand 211 states and 445 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2020-11-11 18:17:05,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 18:17:05,886 INFO L93 Difference]: Finished difference Result 175 states and 361 transitions. [2020-11-11 18:17:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 18:17:05,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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 [2020-11-11 18:17:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 18:17:05,887 INFO L225 Difference]: With dead ends: 175 [2020-11-11 18:17:05,887 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 18:17:05,887 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-11-11 18:17:05,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 18:17:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 18:17:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2020-11-11 18:17:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 18:17:05,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-11-11 18:17:05,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 18:17:05,889 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 18:17:05,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 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) [2020-11-11 18:17:05,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 18:17:05,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 18:17:05,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 18:17:05,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 06:17:05 BasicIcfg [2020-11-11 18:17:05,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 18:17:05,898 INFO L168 Benchmark]: Toolchain (without parser) took 3938.41 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.1 MB in the beginning and 280.7 MB in the end (delta: -3.6 MB). Peak memory consumption was 59.8 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:05,899 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:17:05,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.80 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 246.1 MB in the end (delta: 30.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:05,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 244.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:05,901 INFO L168 Benchmark]: Boogie Preprocessor took 28.79 ms. Allocated memory is still 302.0 MB. Free memory was 244.3 MB in the beginning and 243.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 18:17:05,902 INFO L168 Benchmark]: RCFGBuilder took 659.05 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 264.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:05,903 INFO L168 Benchmark]: TraceAbstraction took 2480.22 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 263.8 MB in the beginning and 280.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 45.0 MB. Max. memory is 16.0 GB. [2020-11-11 18:17:05,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 704.80 ms. Allocated memory is still 302.0 MB. Free memory was 276.3 MB in the beginning and 246.1 MB in the end (delta: 30.2 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 302.0 MB. Free memory was 246.1 MB in the beginning and 244.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 28.79 ms. Allocated memory is still 302.0 MB. Free memory was 244.3 MB in the beginning and 243.0 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 659.05 ms. Allocated memory is still 302.0 MB. Free memory was 243.0 MB in the beginning and 264.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2480.22 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 263.8 MB in the beginning and 280.7 MB in the end (delta: -16.9 MB). Peak memory consumption was 45.0 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 360 SDtfs, 425 SDslu, 1124 SDs, 0 SdLazy, 147 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 19259 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...