/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-keepdead.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 23:46:43,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 23:46:43,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 23:46:43,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 23:46:43,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 23:46:43,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 23:46:43,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 23:46:43,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 23:46:43,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 23:46:43,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 23:46:43,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 23:46:43,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 23:46:43,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 23:46:43,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 23:46:43,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 23:46:43,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 23:46:43,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 23:46:43,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 23:46:43,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 23:46:43,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 23:46:43,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 23:46:43,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 23:46:43,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 23:46:43,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 23:46:43,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 23:46:43,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 23:46:43,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 23:46:43,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 23:46:43,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 23:46:43,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 23:46:43,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 23:46:43,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 23:46:43,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 23:46:43,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 23:46:43,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 23:46:43,250 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 23:46:43,251 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-keepdead.epf [2020-12-17 23:46:43,302 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 23:46:43,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 23:46:43,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 23:46:43,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 23:46:43,307 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 23:46:43,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 23:46:43,307 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 23:46:43,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 23:46:43,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 23:46:43,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 23:46:43,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 23:46:43,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 23:46:43,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 23:46:43,310 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 23:46:43,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 23:46:43,311 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 23:46:43,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 23:46:43,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 23:46:43,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 23:46:43,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 23:46:43,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 23:46:43,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 23:46:43,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 23:46:43,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 23:46:43,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 23:46:43,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 23:46:43,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 23:46:43,314 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 23:46:43,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 23:46:43,315 INFO L138 SettingsManager]: * Remove dead ends from automaton=false [2020-12-17 23:46:43,315 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 23:46:43,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 23:46:43,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 23:46:43,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 23:46:43,802 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 23:46:43,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 23:46:43,804 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 23:46:43,805 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-12-17 23:46:43,894 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99636bc0/e28bb4fa55664ca9b0b8167e79997d86/FLAGfcc2c848b [2020-12-17 23:46:44,526 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 23:46:44,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_tso.oepc.i [2020-12-17 23:46:44,541 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99636bc0/e28bb4fa55664ca9b0b8167e79997d86/FLAGfcc2c848b [2020-12-17 23:46:44,847 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d99636bc0/e28bb4fa55664ca9b0b8167e79997d86 [2020-12-17 23:46:44,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 23:46:44,855 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 23:46:44,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 23:46:44,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 23:46:44,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 23:46:44,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:46:44" (1/1) ... [2020-12-17 23:46:44,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6dfd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:44, skipping insertion in model container [2020-12-17 23:46:44,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 11:46:44" (1/1) ... [2020-12-17 23:46:44,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 23:46:44,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 23:46:45,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:46:45,356 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 23:46:45,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 23:46:45,551 INFO L208 MainTranslator]: Completed translation [2020-12-17 23:46:45,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45 WrapperNode [2020-12-17 23:46:45,552 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 23:46:45,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 23:46:45,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 23:46:45,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 23:46:45,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,587 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 23:46:45,609 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 23:46:45,609 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 23:46:45,609 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 23:46:45,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (1/1) ... [2020-12-17 23:46:45,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 23:46:45,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 23:46:45,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 23:46:45,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 23:46:45,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (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 [2020-12-17 23:46:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 23:46:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 23:46:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 23:46:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 23:46:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-17 23:46:45,717 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-17 23:46:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-17 23:46:45,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-17 23:46:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 23:46:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 23:46:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 23:46:45,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 23:46:45,720 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 23:46:46,042 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 23:46:46,042 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-17 23:46:46,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:46:46 BoogieIcfgContainer [2020-12-17 23:46:46,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 23:46:46,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 23:46:46,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 23:46:46,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 23:46:46,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 11:46:44" (1/3) ... [2020-12-17 23:46:46,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6b1a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:46:46, skipping insertion in model container [2020-12-17 23:46:46,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 11:46:45" (2/3) ... [2020-12-17 23:46:46,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a6b1a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 11:46:46, skipping insertion in model container [2020-12-17 23:46:46,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 11:46:46" (3/3) ... [2020-12-17 23:46:46,054 INFO L111 eAbstractionObserver]: Analyzing ICFG safe010_tso.oepc.i [2020-12-17 23:46:46,070 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 23:46:46,070 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 23:46:46,077 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-17 23:46:46,078 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 23:46:46,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,108 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,110 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,111 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,112 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,112 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,113 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,113 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,113 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,114 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,115 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,117 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,117 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,118 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,124 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,125 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,125 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 23:46:46,130 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-17 23:46:46,144 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-17 23:46:46,167 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 23:46:46,167 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 23:46:46,168 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 23:46:46,168 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 23:46:46,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 23:46:46,168 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 23:46:46,169 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 23:46:46,169 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 23:46:46,181 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 68 places, 64 transitions, 138 flow [2020-12-17 23:46:46,272 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) [2020-12-17 23:46:46,279 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) [2020-12-17 23:46:46,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-17 23:46:46,299 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:46,300 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] [2020-12-17 23:46:46,301 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:46,307 INFO L82 PathProgramCache]: Analyzing trace with hash 2018155564, now seen corresponding path program 1 times [2020-12-17 23:46:46,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:46,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760489015] [2020-12-17 23:46:46,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:46,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:46,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760489015] [2020-12-17 23:46:46,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:46,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:46,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789509886] [2020-12-17 23:46:46,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:46,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:46,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:46,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:46,769 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) [2020-12-17 23:46:47,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:47,025 INFO L93 Difference]: Finished difference Result 1586 states and 4134 transitions. [2020-12-17 23:46:47,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 23:46:47,027 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 [2020-12-17 23:46:47,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:47,030 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-17 23:46:47,030 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 4134 transitions. Word has length 36 [2020-12-17 23:46:47,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:47,032 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 4134 transitions. [2020-12-17 23:46:47,032 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) [2020-12-17 23:46:47,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 4134 transitions. [2020-12-17 23:46:47,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-17 23:46:47,039 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:47,039 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] [2020-12-17 23:46:47,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 23:46:47,040 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:47,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:47,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1725393197, now seen corresponding path program 1 times [2020-12-17 23:46:47,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:47,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163245284] [2020-12-17 23:46:47,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:47,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:47,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163245284] [2020-12-17 23:46:47,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:47,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:46:47,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688963755] [2020-12-17 23:46:47,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:46:47,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:47,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:46:47,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:46:47,194 INFO L87 Difference]: Start difference. First operand 1586 states and 4134 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:47,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:47,457 INFO L93 Difference]: Finished difference Result 2166 states and 5558 transitions. [2020-12-17 23:46:47,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:46:47,458 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2020-12-17 23:46:47,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:47,460 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-17 23:46:47,460 INFO L78 Accepts]: Start accepts. Automaton has 2166 states and 5558 transitions. Word has length 38 [2020-12-17 23:46:47,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:47,461 INFO L481 AbstractCegarLoop]: Abstraction has 2166 states and 5558 transitions. [2020-12-17 23:46:47,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand 2166 states and 5558 transitions. [2020-12-17 23:46:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-17 23:46:47,466 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:47,466 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] [2020-12-17 23:46:47,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 23:46:47,467 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:47,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:47,467 INFO L82 PathProgramCache]: Analyzing trace with hash -2141062468, now seen corresponding path program 1 times [2020-12-17 23:46:47,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:47,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757657871] [2020-12-17 23:46:47,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:47,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757657871] [2020-12-17 23:46:47,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:47,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:47,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004849901] [2020-12-17 23:46:47,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:47,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:47,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:47,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:47,621 INFO L87 Difference]: Start difference. First operand 2166 states and 5558 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:47,774 INFO L93 Difference]: Finished difference Result 1699 states and 4187 transitions. [2020-12-17 23:46:47,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 23:46:47,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2020-12-17 23:46:47,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:47,776 INFO L763 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 [2020-12-17 23:46:47,776 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 4187 transitions. Word has length 41 [2020-12-17 23:46:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:47,777 INFO L481 AbstractCegarLoop]: Abstraction has 1699 states and 4187 transitions. [2020-12-17 23:46:47,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:47,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 4187 transitions. [2020-12-17 23:46:47,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-17 23:46:47,782 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:47,782 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] [2020-12-17 23:46:47,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 23:46:47,782 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:47,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:47,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1222811651, now seen corresponding path program 1 times [2020-12-17 23:46:47,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:47,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358568322] [2020-12-17 23:46:47,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:48,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:48,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358568322] [2020-12-17 23:46:48,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:48,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-17 23:46:48,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441942418] [2020-12-17 23:46:48,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-17 23:46:48,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:48,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-17 23:46:48,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-17 23:46:48,091 INFO L87 Difference]: Start difference. First operand 1699 states and 4187 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:48,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:48,324 INFO L93 Difference]: Finished difference Result 1144 states and 2710 transitions. [2020-12-17 23:46:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 23:46:48,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2020-12-17 23:46:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:48,326 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-12-17 23:46:48,326 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 2710 transitions. Word has length 42 [2020-12-17 23:46:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:48,326 INFO L481 AbstractCegarLoop]: Abstraction has 1144 states and 2710 transitions. [2020-12-17 23:46:48,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:48,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 2710 transitions. [2020-12-17 23:46:48,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 23:46:48,330 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 23:46:48,330 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] [2020-12-17 23:46:48,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 23:46:48,331 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 23:46:48,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 23:46:48,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1089745218, now seen corresponding path program 1 times [2020-12-17 23:46:48,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 23:46:48,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724694145] [2020-12-17 23:46:48,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 23:46:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 23:46:48,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 23:46:48,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724694145] [2020-12-17 23:46:48,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 23:46:48,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 23:46:48,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299715739] [2020-12-17 23:46:48,486 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 23:46:48,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 23:46:48,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 23:46:48,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 23:46:48,488 INFO L87 Difference]: Start difference. First operand 1144 states and 2710 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:48,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 23:46:48,579 INFO L93 Difference]: Finished difference Result 1500 states and 3539 transitions. [2020-12-17 23:46:48,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-17 23:46:48,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2020-12-17 23:46:48,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 23:46:48,580 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-17 23:46:48,580 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 3539 transitions. Word has length 44 [2020-12-17 23:46:48,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 23:46:48,581 INFO L481 AbstractCegarLoop]: Abstraction has 1500 states and 3539 transitions. [2020-12-17 23:46:48,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 23:46:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 3539 transitions. [2020-12-17 23:46:48,585 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-17 23:46:48,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 23:46:48,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 11:46:48 BasicIcfg [2020-12-17 23:46:48,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 23:46:48,592 INFO L168 Benchmark]: Toolchain (without parser) took 3737.00 ms. Allocated memory is still 320.9 MB. Free memory was 294.0 MB in the beginning and 227.6 MB in the end (delta: 66.4 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:48,593 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 320.9 MB. Free memory was 291.8 MB in the beginning and 291.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 23:46:48,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.43 ms. Allocated memory is still 320.9 MB. Free memory was 293.8 MB in the beginning and 295.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:48,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.09 ms. Allocated memory is still 320.9 MB. Free memory was 295.3 MB in the beginning and 293.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:48,596 INFO L168 Benchmark]: Boogie Preprocessor took 25.65 ms. Allocated memory is still 320.9 MB. Free memory was 293.2 MB in the beginning and 292.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:48,596 INFO L168 Benchmark]: RCFGBuilder took 409.50 ms. Allocated memory is still 320.9 MB. Free memory was 292.1 MB in the beginning and 271.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:48,597 INFO L168 Benchmark]: TraceAbstraction took 2543.41 ms. Allocated memory is still 320.9 MB. Free memory was 270.1 MB in the beginning and 227.6 MB in the end (delta: 42.5 MB). Peak memory consumption was 45.6 MB. Max. memory is 16.0 GB. [2020-12-17 23:46:48,601 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 320.9 MB. Free memory was 291.8 MB in the beginning and 291.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 694.43 ms. Allocated memory is still 320.9 MB. Free memory was 293.8 MB in the beginning and 295.3 MB in the end (delta: -1.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 55.09 ms. Allocated memory is still 320.9 MB. Free memory was 295.3 MB in the beginning and 293.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 25.65 ms. Allocated memory is still 320.9 MB. Free memory was 293.2 MB in the beginning and 292.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 409.50 ms. Allocated memory is still 320.9 MB. Free memory was 292.1 MB in the beginning and 271.2 MB in the end (delta: 20.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2543.41 ms. Allocated memory is still 320.9 MB. Free memory was 270.1 MB in the beginning and 227.6 MB in the end (delta: 42.5 MB). Peak memory consumption was 45.6 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: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 389 SDtfs, 677 SDslu, 1325 SDs, 0 SdLazy, 171 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2166occurred in iteration=2, 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, 0.8s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 20970 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...