/usr/bin/java -Xmx8000000000 -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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 13:12:28,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 13:12:28,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 13:12:28,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 13:12:28,278 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 13:12:28,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 13:12:28,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 13:12:28,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 13:12:28,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 13:12:28,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 13:12:28,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 13:12:28,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 13:12:28,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 13:12:28,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 13:12:28,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 13:12:28,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 13:12:28,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 13:12:28,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 13:12:28,316 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 13:12:28,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 13:12:28,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 13:12:28,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 13:12:28,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 13:12:28,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 13:12:28,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 13:12:28,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 13:12:28,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 13:12:28,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 13:12:28,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 13:12:28,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 13:12:28,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 13:12:28,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 13:12:28,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 13:12:28,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 13:12:28,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 13:12:28,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 13:12:28,345 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-09 13:12:28,376 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 13:12:28,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 13:12:28,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 13:12:28,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 13:12:28,379 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 13:12:28,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 13:12:28,379 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 13:12:28,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 13:12:28,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 13:12:28,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 13:12:28,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 13:12:28,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 13:12:28,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 13:12:28,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 13:12:28,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 13:12:28,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 13:12:28,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 13:12:28,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 13:12:28,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 13:12:28,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 13:12:28,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 13:12:28,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 13:12:28,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 13:12:28,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-09 13:12:28,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 13:12:28,385 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 13:12:28,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 13:12:28,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 13:12:28,385 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-09 13:12:28,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 13:12:28,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 13:12:28,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 13:12:28,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 13:12:28,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 13:12:28,881 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 13:12:28,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-11-09 13:12:28,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364f3c7c5/ed1c25202d1849f0aaf2fc81bae6c805/FLAGde54d10db [2020-11-09 13:12:29,845 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 13:12:29,846 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_46-escape_racefree.i [2020-11-09 13:12:29,863 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364f3c7c5/ed1c25202d1849f0aaf2fc81bae6c805/FLAGde54d10db [2020-11-09 13:12:30,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/364f3c7c5/ed1c25202d1849f0aaf2fc81bae6c805 [2020-11-09 13:12:30,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 13:12:30,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 13:12:30,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 13:12:30,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 13:12:30,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 13:12:30,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79957800 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30, skipping insertion in model container [2020-11-09 13:12:30,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 13:12:30,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 13:12:30,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 13:12:30,473 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 13:12:30,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 13:12:30,669 INFO L208 MainTranslator]: Completed translation [2020-11-09 13:12:30,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30 WrapperNode [2020-11-09 13:12:30,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 13:12:30,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 13:12:30,673 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 13:12:30,673 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 13:12:30,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,724 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 13:12:30,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 13:12:30,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 13:12:30,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 13:12:30,735 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (1/1) ... [2020-11-09 13:12:30,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 13:12:30,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 13:12:30,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 13:12:30,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 13:12:30,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (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 [2020-11-09 13:12:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-09 13:12:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 13:12:30,848 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-09 13:12:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 13:12:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2020-11-09 13:12:30,849 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2020-11-09 13:12:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 13:12:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 13:12:30,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 13:12:30,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 13:12:30,852 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 13:12:31,371 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 13:12:31,371 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-09 13:12:31,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:12:31 BoogieIcfgContainer [2020-11-09 13:12:31,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 13:12:31,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 13:12:31,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 13:12:31,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 13:12:31,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:12:30" (1/3) ... [2020-11-09 13:12:31,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca6d602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:12:31, skipping insertion in model container [2020-11-09 13:12:31,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:12:30" (2/3) ... [2020-11-09 13:12:31,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ca6d602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:12:31, skipping insertion in model container [2020-11-09 13:12:31,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:12:31" (3/3) ... [2020-11-09 13:12:31,382 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2020-11-09 13:12:31,400 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 13:12:31,400 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-09 13:12:31,404 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 13:12:31,405 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 13:12:31,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,440 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,440 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,441 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,441 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,441 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,441 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,442 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,442 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,442 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,442 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,443 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,443 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,444 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,445 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,446 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,447 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,447 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,447 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,447 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,447 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,448 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,448 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,448 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,448 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,449 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,449 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,449 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,450 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,450 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,450 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,450 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,450 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,451 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,451 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,452 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,452 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,452 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,452 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,453 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,454 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,454 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,454 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,454 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,455 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,455 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,456 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,459 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,460 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,460 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,460 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,461 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~p~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~mem7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,461 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,462 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,462 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 13:12:31,474 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-09 13:12:31,488 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-09 13:12:31,513 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 13:12:31,514 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 13:12:31,514 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-09 13:12:31,514 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-09 13:12:31,514 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 13:12:31,514 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 13:12:31,515 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 13:12:31,515 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 13:12:31,530 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-09 13:12:31,532 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 103 transitions, 214 flow [2020-11-09 13:12:31,536 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 103 transitions, 214 flow [2020-11-09 13:12:31,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 103 transitions, 214 flow [2020-11-09 13:12:31,595 INFO L129 PetriNetUnfolder]: 10/102 cut-off events. [2020-11-09 13:12:31,596 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-09 13:12:31,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 107 conditions, 102 events. 10/102 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 157 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 58. Up to 3 conditions per place. [2020-11-09 13:12:31,611 INFO L116 LiptonReduction]: Number of co-enabled transitions 1650 [2020-11-09 13:12:32,344 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-09 13:12:35,753 WARN L194 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 13:12:36,078 WARN L194 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-11-09 13:12:36,182 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 13:12:36,757 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 13:12:36,915 WARN L194 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 13:12:37,240 WARN L194 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-09 13:12:37,434 WARN L194 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-09 13:12:38,533 WARN L194 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-11-09 13:12:38,910 WARN L194 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-11-09 13:12:39,693 WARN L194 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 137 [2020-11-09 13:12:40,134 WARN L194 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-11-09 13:12:40,245 INFO L131 LiptonReduction]: Checked pairs total: 3041 [2020-11-09 13:12:40,245 INFO L133 LiptonReduction]: Total number of compositions: 97 [2020-11-09 13:12:40,252 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 25 places, 29 transitions, 66 flow [2020-11-09 13:12:40,265 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 84 states. [2020-11-09 13:12:40,267 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-09 13:12:40,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-09 13:12:40,274 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 13:12:40,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-09 13:12:40,275 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 13:12:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 13:12:40,282 INFO L82 PathProgramCache]: Analyzing trace with hash 382634512, now seen corresponding path program 1 times [2020-11-09 13:12:40,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 13:12:40,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576132122] [2020-11-09 13:12:40,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 13:12:40,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 13:12:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 13:12:40,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576132122] [2020-11-09 13:12:40,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 13:12:40,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 13:12:40,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806430579] [2020-11-09 13:12:40,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 13:12:40,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 13:12:40,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 13:12:40,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 13:12:40,571 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2020-11-09 13:12:40,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 13:12:40,630 INFO L93 Difference]: Finished difference Result 105 states and 178 transitions. [2020-11-09 13:12:40,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 13:12:40,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-09 13:12:40,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 13:12:40,642 INFO L225 Difference]: With dead ends: 105 [2020-11-09 13:12:40,642 INFO L226 Difference]: Without dead ends: 38 [2020-11-09 13:12:40,643 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 13:12:40,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-09 13:12:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-09 13:12:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-09 13:12:40,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 60 transitions. [2020-11-09 13:12:40,684 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 60 transitions. Word has length 5 [2020-11-09 13:12:40,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 13:12:40,685 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 60 transitions. [2020-11-09 13:12:40,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 13:12:40,685 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-11-09 13:12:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-09 13:12:40,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 13:12:40,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 13:12:40,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 13:12:40,686 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 13:12:40,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 13:12:40,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1132588708, now seen corresponding path program 1 times [2020-11-09 13:12:40,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 13:12:40,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612977687] [2020-11-09 13:12:40,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 13:12:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 13:12:40,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 13:12:40,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612977687] [2020-11-09 13:12:40,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 13:12:40,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 13:12:40,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082065550] [2020-11-09 13:12:40,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 13:12:40,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 13:12:40,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 13:12:40,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 13:12:40,802 INFO L87 Difference]: Start difference. First operand 38 states and 60 transitions. Second operand 5 states. [2020-11-09 13:12:40,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 13:12:40,862 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2020-11-09 13:12:40,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 13:12:40,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-09 13:12:40,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 13:12:40,865 INFO L225 Difference]: With dead ends: 17 [2020-11-09 13:12:40,865 INFO L226 Difference]: Without dead ends: 15 [2020-11-09 13:12:40,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 13:12:40,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-09 13:12:40,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-09 13:12:40,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-09 13:12:40,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-11-09 13:12:40,873 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 9 [2020-11-09 13:12:40,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 13:12:40,873 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-11-09 13:12:40,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 13:12:40,874 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-11-09 13:12:40,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 13:12:40,875 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 13:12:40,875 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 13:12:40,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 13:12:40,876 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 13:12:40,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 13:12:40,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2136993341, now seen corresponding path program 1 times [2020-11-09 13:12:40,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 13:12:40,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101211040] [2020-11-09 13:12:40,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 13:12:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 13:12:41,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 13:12:41,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101211040] [2020-11-09 13:12:41,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 13:12:41,037 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 13:12:41,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089406824] [2020-11-09 13:12:41,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 13:12:41,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 13:12:41,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 13:12:41,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-09 13:12:41,042 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 7 states. [2020-11-09 13:12:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 13:12:41,128 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-09 13:12:41,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 13:12:41,129 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-09 13:12:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 13:12:41,130 INFO L225 Difference]: With dead ends: 14 [2020-11-09 13:12:41,130 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 13:12:41,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-09 13:12:41,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 13:12:41,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 13:12:41,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 13:12:41,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 13:12:41,131 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-09 13:12:41,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 13:12:41,132 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 13:12:41,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 13:12:41,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 13:12:41,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 13:12:41,132 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 13:12:41,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:12:41 BasicIcfg [2020-11-09 13:12:41,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 13:12:41,138 INFO L168 Benchmark]: Toolchain (without parser) took 11121.46 ms. Allocated memory was 152.0 MB in the beginning and 231.7 MB in the end (delta: 79.7 MB). Free memory was 125.7 MB in the beginning and 148.1 MB in the end (delta: -22.4 MB). Peak memory consumption was 58.8 MB. Max. memory is 8.0 GB. [2020-11-09 13:12:41,138 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 13:12:41,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 647.70 ms. Allocated memory is still 152.0 MB. Free memory was 125.0 MB in the beginning and 130.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. [2020-11-09 13:12:41,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.22 ms. Allocated memory is still 152.0 MB. Free memory was 130.3 MB in the beginning and 128.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 13:12:41,141 INFO L168 Benchmark]: Boogie Preprocessor took 34.83 ms. Allocated memory is still 152.0 MB. Free memory was 128.4 MB in the beginning and 127.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 13:12:41,142 INFO L168 Benchmark]: RCFGBuilder took 612.84 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 100.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2020-11-09 13:12:41,143 INFO L168 Benchmark]: TraceAbstraction took 9761.02 ms. Allocated memory was 152.0 MB in the beginning and 231.7 MB in the end (delta: 79.7 MB). Free memory was 100.1 MB in the beginning and 148.1 MB in the end (delta: -48.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. [2020-11-09 13:12:41,152 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 152.0 MB. Free memory is still 124.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 647.70 ms. Allocated memory is still 152.0 MB. Free memory was 125.0 MB in the beginning and 130.3 MB in the end (delta: -5.3 MB). Peak memory consumption was 31.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.22 ms. Allocated memory is still 152.0 MB. Free memory was 130.3 MB in the beginning and 128.4 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.83 ms. Allocated memory is still 152.0 MB. Free memory was 128.4 MB in the beginning and 127.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 612.84 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 100.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 9761.02 ms. Allocated memory was 152.0 MB in the beginning and 231.7 MB in the end (delta: 79.7 MB). Free memory was 100.1 MB in the beginning and 148.1 MB in the end (delta: -48.0 MB). Peak memory consumption was 31.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1125 VarBasedMoverChecksPositive, 136 VarBasedMoverChecksNegative, 94 SemBasedMoverChecksPositive, 42 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 99 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.7s, 97 PlacesBefore, 25 PlacesAfterwards, 103 TransitionsBefore, 29 TransitionsAfterwards, 1650 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 97 TotalNumberOfCompositions, 3041 MoverChecksTotal - PositiveResult [Line: 683]: 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 2 procedures, 94 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 34 SDtfs, 34 SDslu, 29 SDs, 0 SdLazy, 46 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...