/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 16:58:05,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 16:58:05,044 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 16:58:05,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 16:58:05,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 16:58:05,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 16:58:05,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 16:58:05,125 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-07-09 16:58:05,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 16:58:05,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 16:58:05,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 16:58:05,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 16:58:05,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 16:58:05,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 16:58:05,173 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 16:58:05,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 16:58:05,173 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 16:58:05,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 16:58:05,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 16:58:05,174 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 16:58:05,174 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 16:58:05,174 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 16:58:05,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 16:58:05,175 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 16:58:05,175 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 16:58:05,175 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 16:58:05,175 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 16:58:05,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 16:58:05,176 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 16:58:05,176 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 16:58:05,176 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 16:58:05,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:58:05,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 16:58:05,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 16:58:05,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 16:58:05,177 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 16:58:05,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 16:58:05,177 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 16:58:05,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 16:58:05,177 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 16:58:05,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 16:58:05,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 16:58:05,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 16:58:05,507 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 16:58:05,507 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 16:58:05,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2021-07-09 16:58:05,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f882104e5/5de85e46030049678e0dfad3c4898dd8/FLAGd51e9afe2 [2021-07-09 16:58:06,133 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 16:58:06,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2021-07-09 16:58:06,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f882104e5/5de85e46030049678e0dfad3c4898dd8/FLAGd51e9afe2 [2021-07-09 16:58:06,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f882104e5/5de85e46030049678e0dfad3c4898dd8 [2021-07-09 16:58:06,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 16:58:06,431 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 16:58:06,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 16:58:06,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 16:58:06,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 16:58:06,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2e8281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06, skipping insertion in model container [2021-07-09 16:58:06,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 16:58:06,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 16:58:06,718 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2021-07-09 16:58:06,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:58:06,783 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 16:58:06,833 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i[30035,30048] [2021-07-09 16:58:06,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 16:58:06,884 INFO L208 MainTranslator]: Completed translation [2021-07-09 16:58:06,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06 WrapperNode [2021-07-09 16:58:06,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 16:58:06,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 16:58:06,886 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 16:58:06,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 16:58:06,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 16:58:06,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 16:58:06,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 16:58:06,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 16:58:06,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... [2021-07-09 16:58:06,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 16:58:06,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 16:58:06,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 16:58:06,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 16:58:06,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 16:58:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-07-09 16:58:07,046 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-07-09 16:58:07,046 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-07-09 16:58:07,047 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-07-09 16:58:07,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 16:58:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 16:58:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 16:58:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 16:58:07,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 16:58:07,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 16:58:07,050 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 16:58:07,448 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 16:58:07,448 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-07-09 16:58:07,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:58:07 BoogieIcfgContainer [2021-07-09 16:58:07,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 16:58:07,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 16:58:07,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 16:58:07,454 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 16:58:07,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 04:58:06" (1/3) ... [2021-07-09 16:58:07,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1014a7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:58:07, skipping insertion in model container [2021-07-09 16:58:07,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 04:58:06" (2/3) ... [2021-07-09 16:58:07,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1014a7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 04:58:07, skipping insertion in model container [2021-07-09 16:58:07,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 04:58:07" (3/3) ... [2021-07-09 16:58:07,456 INFO L111 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2021-07-09 16:58:07,461 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 16:58:07,461 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 16:58:07,462 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 16:58:07,462 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 16:58:07,486 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,487 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,487 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,487 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,488 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,488 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,489 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,490 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,490 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,491 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,491 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,492 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,492 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,493 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,495 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,495 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,496 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,496 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,496 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,500 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,501 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,501 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:07,503 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:58:07,523 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 16:58:07,539 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:07,540 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:07,540 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:07,540 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:07,540 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:07,540 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:07,540 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:07,540 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread1of1ForFork1======== [2021-07-09 16:58:07,549 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 69 transitions, 148 flow [2021-07-09 16:58:07,617 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 939 states, 936 states have (on average 2.5555555555555554) internal successors, (2392), 938 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:07,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 939 states, 936 states have (on average 2.5555555555555554) internal successors, (2392), 938 states have internal predecessors, (2392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:07,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-07-09 16:58:07,627 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:07,627 INFO L508 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] [2021-07-09 16:58:07,628 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:07,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:07,632 INFO L82 PathProgramCache]: Analyzing trace with hash 2101000019, now seen corresponding path program 1 times [2021-07-09 16:58:07,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:07,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211379143] [2021-07-09 16:58:07,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:08,054 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:08,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211379143] [2021-07-09 16:58:08,055 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211379143] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:08,055 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:08,055 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:58:08,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651320264] [2021-07-09 16:58:08,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:58:08,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:08,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:58:08,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:58:08,072 INFO L87 Difference]: Start difference. First operand has 939 states, 936 states have (on average 2.5555555555555554) internal successors, (2392), 938 states have internal predecessors, (2392), 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 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:08,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:08,435 INFO L93 Difference]: Finished difference Result 869 states and 2071 transitions. [2021-07-09 16:58:08,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:58:08,437 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-07-09 16:58:08,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:08,450 INFO L225 Difference]: With dead ends: 869 [2021-07-09 16:58:08,450 INFO L226 Difference]: Without dead ends: 462 [2021-07-09 16:58:08,451 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 338.6ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:58:08,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-07-09 16:58:08,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2021-07-09 16:58:08,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 460 states have (on average 2.2543478260869567) internal successors, (1037), 461 states have internal predecessors, (1037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 1037 transitions. [2021-07-09 16:58:08,533 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 1037 transitions. Word has length 34 [2021-07-09 16:58:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:08,533 INFO L482 AbstractCegarLoop]: Abstraction has 462 states and 1037 transitions. [2021-07-09 16:58:08,533 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 1037 transitions. [2021-07-09 16:58:08,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 16:58:08,535 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:08,536 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:08,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 16:58:08,536 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:08,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:08,537 INFO L82 PathProgramCache]: Analyzing trace with hash 317679082, now seen corresponding path program 1 times [2021-07-09 16:58:08,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:08,537 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993367220] [2021-07-09 16:58:08,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:08,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:08,802 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:08,802 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993367220] [2021-07-09 16:58:08,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993367220] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:08,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:08,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:58:08,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83258959] [2021-07-09 16:58:08,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:58:08,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:08,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:58:08,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:58:08,807 INFO L87 Difference]: Start difference. First operand 462 states and 1037 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:09,026 INFO L93 Difference]: Finished difference Result 386 states and 851 transitions. [2021-07-09 16:58:09,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 16:58:09,027 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-07-09 16:58:09,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:09,027 INFO L225 Difference]: With dead ends: 386 [2021-07-09 16:58:09,028 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 16:58:09,029 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 231.9ms TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2021-07-09 16:58:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 16:58:09,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 16:58:09,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 16:58:09,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 46 [2021-07-09 16:58:09,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:09,030 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 16:58:09,030 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 16:58:09,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:58:09,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 16:58:09,031 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork1 was SAFE (1/2) [2021-07-09 16:58:09,032 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-09 16:58:09,039 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:09,040 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:09,040 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:09,040 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:09,040 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:09,040 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:09,040 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:09,040 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:58:09,046 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 69 transitions, 148 flow [2021-07-09 16:58:09,061 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 769 states, 767 states have (on average 2.607561929595828) internal successors, (2000), 768 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 769 states, 767 states have (on average 2.607561929595828) internal successors, (2000), 768 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 16:58:09,072 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:09,072 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:09,072 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-09 16:58:09,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:09,073 INFO L82 PathProgramCache]: Analyzing trace with hash -821612, now seen corresponding path program 1 times [2021-07-09 16:58:09,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:09,073 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946523925] [2021-07-09 16:58:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:58:09,114 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:58:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:58:09,145 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:58:09,176 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-09 16:58:09,176 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-09 16:58:09,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 16:58:09,176 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/2) [2021-07-09 16:58:09,177 WARN L243 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-09 16:58:09,177 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-07-09 16:58:09,194 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,195 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,195 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,196 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,197 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,197 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,198 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,200 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,201 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,202 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,202 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,203 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,203 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,204 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,204 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,205 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,217 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,217 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,226 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,226 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,228 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,228 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,228 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,228 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,228 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,229 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,229 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,230 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,230 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,231 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,231 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,232 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,232 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,234 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:58:09,235 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-09 16:58:09,235 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:09,236 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:09,236 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:09,236 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:09,236 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:09,236 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:09,236 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:09,236 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:58:09,237 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 86 transitions, 196 flow [2021-07-09 16:58:09,373 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4669 states, 4667 states have (on average 3.439040068566531) internal successors, (16050), 4668 states have internal predecessors, (16050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 4669 states, 4667 states have (on average 3.439040068566531) internal successors, (16050), 4668 states have internal predecessors, (16050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-09 16:58:09,397 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:09,397 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:09,397 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-09 16:58:09,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:09,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1728251235, now seen corresponding path program 1 times [2021-07-09 16:58:09,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:09,398 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601796785] [2021-07-09 16:58:09,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:09,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:58:09,443 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:58:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:58:09,478 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:58:09,487 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-09 16:58:09,487 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-09 16:58:09,487 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 16:58:09,487 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/3) [2021-07-09 16:58:09,488 WARN L243 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-09 16:58:09,488 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-07-09 16:58:09,505 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,505 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,506 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,507 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,508 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,509 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,510 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,511 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,512 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,513 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,514 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,515 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,515 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,516 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,517 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,518 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,518 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,518 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,518 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,518 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,518 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,520 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,520 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,520 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,520 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,520 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,521 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,522 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,522 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,525 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,525 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,525 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:09,530 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:58:09,531 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 16:58:09,532 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:09,532 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:09,532 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:09,532 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:09,532 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:09,532 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:09,532 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:09,532 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread3of3ForFork1======== [2021-07-09 16:58:09,536 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 103 transitions, 248 flow [2021-07-09 16:58:09,538 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:09,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:58:09,540 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread3of3ForFork1 was SAFE (1/4) [2021-07-09 16:58:09,540 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-09 16:58:09,540 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:09,541 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:09,541 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:09,541 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:09,541 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:09,541 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:09,541 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:09,541 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 16:58:09,545 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 112 places, 103 transitions, 248 flow [2021-07-09 16:58:10,579 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 28069 states, 28067 states have (on average 4.270139309509388) internal successors, (119850), 28068 states have internal predecessors, (119850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 28069 states, 28067 states have (on average 4.270139309509388) internal successors, (119850), 28068 states have internal predecessors, (119850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 16:58:10,671 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:10,671 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:10,672 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-07-09 16:58:10,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:10,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1403611569, now seen corresponding path program 1 times [2021-07-09 16:58:10,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:10,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375574778] [2021-07-09 16:58:10,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:58:10,698 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:58:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-09 16:58:10,734 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-09 16:58:10,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-09 16:58:10,754 INFO L609 BasicCegarLoop]: Counterexample might be feasible [2021-07-09 16:58:10,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 16:58:10,754 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (2/4) [2021-07-09 16:58:10,754 WARN L243 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2021-07-09 16:58:10,754 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2021-07-09 16:58:10,845 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,846 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,847 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,848 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,849 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,850 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,867 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,874 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,875 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,876 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,876 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,876 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,876 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,876 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,877 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,878 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,878 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,878 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,878 WARN L313 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,879 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,879 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,879 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,879 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,879 WARN L313 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,881 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,881 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,881 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,881 WARN L313 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,881 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,882 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,882 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,882 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,883 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,884 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,884 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,886 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,886 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,886 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,886 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,887 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,887 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,887 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,887 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,887 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,888 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 16:58:10,889 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 16:58:10,890 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 16:58:10,893 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:10,893 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:10,893 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:10,893 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:10,893 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:10,893 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:10,893 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:10,893 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread3of4ForFork1======== [2021-07-09 16:58:10,894 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-07-09 16:58:10,895 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:58:10,896 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread3of4ForFork1 was SAFE (1/5) [2021-07-09 16:58:10,896 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 16:58:10,897 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:10,897 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:10,897 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:10,897 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:10,897 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:10,897 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:10,897 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:10,897 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread4of4ForFork1======== [2021-07-09 16:58:10,898 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-07-09 16:58:10,899 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,899 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:58:10,900 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread4of4ForFork1 was SAFE (2/5) [2021-07-09 16:58:10,901 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 16:58:10,901 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:10,901 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:10,902 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:10,902 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:10,902 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:10,902 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:10,902 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:10,902 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread2of4ForFork1======== [2021-07-09 16:58:10,903 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-07-09 16:58:10,904 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:10,905 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 16:58:10,905 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread2of4ForFork1 was SAFE (3/5) [2021-07-09 16:58:10,905 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-09 16:58:10,906 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 16:58:10,906 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 16:58:10,906 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 16:58:10,906 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 16:58:10,906 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 16:58:10,906 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 16:58:10,906 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 16:58:10,907 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == thr1Thread1of4ForFork1======== [2021-07-09 16:58:10,907 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-07-09 16:58:17,296 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 205017 states, 205011 states have (on average 5.04033929886689) internal successors, (1033325), 205016 states have internal predecessors, (1033325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand has 205017 states, 205011 states have (on average 5.04033929886689) internal successors, (1033325), 205016 states have internal predecessors, (1033325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-07-09 16:58:18,249 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:18,249 INFO L508 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] [2021-07-09 16:58:18,249 INFO L430 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:18,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:18,250 INFO L82 PathProgramCache]: Analyzing trace with hash -1908114173, now seen corresponding path program 1 times [2021-07-09 16:58:18,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:18,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681427270] [2021-07-09 16:58:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:18,329 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:18,329 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681427270] [2021-07-09 16:58:18,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681427270] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:18,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:18,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 16:58:18,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361063623] [2021-07-09 16:58:18,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 16:58:18,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:18,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 16:58:18,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 16:58:18,754 INFO L87 Difference]: Start difference. First operand has 205017 states, 205011 states have (on average 5.04033929886689) internal successors, (1033325), 205016 states have internal predecessors, (1033325), 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 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:23,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:23,643 INFO L93 Difference]: Finished difference Result 260909 states and 1269833 transitions. [2021-07-09 16:58:23,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 16:58:23,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 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 34 [2021-07-09 16:58:23,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:26,037 INFO L225 Difference]: With dead ends: 260909 [2021-07-09 16:58:26,037 INFO L226 Difference]: Without dead ends: 173040 [2021-07-09 16:58:26,037 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 123.1ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-07-09 16:58:29,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173040 states. [2021-07-09 16:58:35,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173040 to 173040. [2021-07-09 16:58:36,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173040 states, 173035 states have (on average 4.865917299968214) internal successors, (841974), 173039 states have internal predecessors, (841974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:38,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173040 states to 173040 states and 841974 transitions. [2021-07-09 16:58:38,315 INFO L78 Accepts]: Start accepts. Automaton has 173040 states and 841974 transitions. Word has length 34 [2021-07-09 16:58:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:58:38,315 INFO L482 AbstractCegarLoop]: Abstraction has 173040 states and 841974 transitions. [2021-07-09 16:58:38,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 173040 states and 841974 transitions. [2021-07-09 16:58:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-07-09 16:58:38,316 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:58:38,316 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:58:38,317 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 16:58:38,317 INFO L430 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:58:38,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:58:38,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1086704383, now seen corresponding path program 1 times [2021-07-09 16:58:38,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:58:38,318 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954350898] [2021-07-09 16:58:38,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:58:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:58:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:58:38,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:58:38,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954350898] [2021-07-09 16:58:38,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954350898] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:58:38,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 16:58:38,531 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-07-09 16:58:38,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088544213] [2021-07-09 16:58:38,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:58:38,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:58:38,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:58:38,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-07-09 16:58:38,535 INFO L87 Difference]: Start difference. First operand 173040 states and 841974 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:58:43,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:58:43,536 INFO L93 Difference]: Finished difference Result 321012 states and 1505068 transitions. [2021-07-09 16:58:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 16:58:43,536 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 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 46 [2021-07-09 16:58:43,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:58:47,393 INFO L225 Difference]: With dead ends: 321012 [2021-07-09 16:58:47,393 INFO L226 Difference]: Without dead ends: 271144 [2021-07-09 16:58:47,394 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 200.5ms TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-07-09 16:58:50,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271144 states. [2021-07-09 16:59:02,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271144 to 175908. [2021-07-09 16:59:03,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175908 states, 175904 states have (on average 4.800391122430416) internal successors, (844408), 175907 states have internal predecessors, (844408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:05,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175908 states to 175908 states and 844408 transitions. [2021-07-09 16:59:05,772 INFO L78 Accepts]: Start accepts. Automaton has 175908 states and 844408 transitions. Word has length 46 [2021-07-09 16:59:05,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:05,789 INFO L482 AbstractCegarLoop]: Abstraction has 175908 states and 844408 transitions. [2021-07-09 16:59:05,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:05,789 INFO L276 IsEmpty]: Start isEmpty. Operand 175908 states and 844408 transitions. [2021-07-09 16:59:05,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-09 16:59:05,791 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:05,791 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:05,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 16:59:05,792 INFO L430 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:05,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:05,792 INFO L82 PathProgramCache]: Analyzing trace with hash -327900800, now seen corresponding path program 1 times [2021-07-09 16:59:05,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:05,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751206909] [2021-07-09 16:59:05,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:05,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:05,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:05,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751206909] [2021-07-09 16:59:05,951 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751206909] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:05,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858829488] [2021-07-09 16:59:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:06,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-09 16:59:06,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:59:06,708 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:06,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858829488] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:06,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 16:59:06,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-07-09 16:59:06,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089515188] [2021-07-09 16:59:06,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 16:59:06,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:06,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 16:59:06,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2021-07-09 16:59:06,725 INFO L87 Difference]: Start difference. First operand 175908 states and 844408 transitions. Second operand has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:12,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:12,218 INFO L93 Difference]: Finished difference Result 320548 states and 1488640 transitions. [2021-07-09 16:59:12,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 16:59:12,219 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 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 56 [2021-07-09 16:59:12,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:17,944 INFO L225 Difference]: With dead ends: 320548 [2021-07-09 16:59:17,944 INFO L226 Difference]: Without dead ends: 270068 [2021-07-09 16:59:17,945 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 726.4ms TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 16:59:22,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270068 states. [2021-07-09 16:59:31,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270068 to 176716. [2021-07-09 16:59:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176716 states, 176712 states have (on average 4.7422246366969985) internal successors, (838008), 176715 states have internal predecessors, (838008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:33,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176716 states to 176716 states and 838008 transitions. [2021-07-09 16:59:33,590 INFO L78 Accepts]: Start accepts. Automaton has 176716 states and 838008 transitions. Word has length 56 [2021-07-09 16:59:33,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 16:59:33,591 INFO L482 AbstractCegarLoop]: Abstraction has 176716 states and 838008 transitions. [2021-07-09 16:59:33,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.7) internal successors, (94), 20 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:33,591 INFO L276 IsEmpty]: Start isEmpty. Operand 176716 states and 838008 transitions. [2021-07-09 16:59:33,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 16:59:33,595 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 16:59:33,595 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 16:59:33,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-07-09 16:59:33,796 INFO L430 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 16:59:33,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 16:59:33,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1990760464, now seen corresponding path program 1 times [2021-07-09 16:59:33,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 16:59:33,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848299609] [2021-07-09 16:59:33,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 16:59:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:34,095 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 16:59:34,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 16:59:34,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848299609] [2021-07-09 16:59:34,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848299609] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 16:59:34,098 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767127199] [2021-07-09 16:59:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 16:59:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 16:59:34,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-09 16:59:34,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 16:59:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-09 16:59:34,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767127199] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 16:59:34,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-09 16:59:34,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-07-09 16:59:34,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542691014] [2021-07-09 16:59:34,602 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 16:59:34,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 16:59:34,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 16:59:34,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-07-09 16:59:34,603 INFO L87 Difference]: Start difference. First operand 176716 states and 838008 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 16:59:43,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 16:59:43,068 INFO L93 Difference]: Finished difference Result 407204 states and 1857498 transitions. [2021-07-09 16:59:43,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 16:59:43,069 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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 60 [2021-07-09 16:59:43,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 16:59:48,196 INFO L225 Difference]: With dead ends: 407204 [2021-07-09 16:59:48,197 INFO L226 Difference]: Without dead ends: 390044 [2021-07-09 16:59:48,197 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 908.2ms TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 16:59:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390044 states. [2021-07-09 17:00:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390044 to 173892. [2021-07-09 17:00:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173892 states, 173888 states have (on average 4.746227456753773) internal successors, (825312), 173891 states have internal predecessors, (825312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173892 states to 173892 states and 825312 transitions. [2021-07-09 17:00:10,491 INFO L78 Accepts]: Start accepts. Automaton has 173892 states and 825312 transitions. Word has length 60 [2021-07-09 17:00:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:10,492 INFO L482 AbstractCegarLoop]: Abstraction has 173892 states and 825312 transitions. [2021-07-09 17:00:10,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 173892 states and 825312 transitions. [2021-07-09 17:00:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-07-09 17:00:10,495 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:10,495 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:10,695 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:10,698 INFO L430 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:10,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:10,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1469779694, now seen corresponding path program 2 times [2021-07-09 17:00:10,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:10,700 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080428550] [2021-07-09 17:00:10,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:10,958 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:10,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:10,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080428550] [2021-07-09 17:00:10,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080428550] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:10,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611496681] [2021-07-09 17:00:10,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:11,043 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-07-09 17:00:11,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:00:11,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-09 17:00:11,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:00:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-09 17:00:11,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611496681] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:00:11,385 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-09 17:00:11,385 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [17] total 27 [2021-07-09 17:00:11,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347451192] [2021-07-09 17:00:11,385 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 17:00:11,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:11,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 17:00:11,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=602, Unknown=0, NotChecked=0, Total=702 [2021-07-09 17:00:11,386 INFO L87 Difference]: Start difference. First operand 173892 states and 825312 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:11,970 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2021-07-09 17:00:19,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:19,292 INFO L93 Difference]: Finished difference Result 403532 states and 1838354 transitions. [2021-07-09 17:00:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 17:00:19,292 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 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 60 [2021-07-09 17:00:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:25,664 INFO L225 Difference]: With dead ends: 403532 [2021-07-09 17:00:25,664 INFO L226 Difference]: Without dead ends: 386228 [2021-07-09 17:00:25,664 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 761.0ms TimeCoverageRelationStatistics Valid=260, Invalid=1380, Unknown=0, NotChecked=0, Total=1640 [2021-07-09 17:00:29,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386228 states. [2021-07-09 17:00:40,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386228 to 159892. [2021-07-09 17:00:40,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159892 states, 159889 states have (on average 4.7664066946444095) internal successors, (762096), 159891 states have internal predecessors, (762096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:42,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159892 states to 159892 states and 762096 transitions. [2021-07-09 17:00:42,357 INFO L78 Accepts]: Start accepts. Automaton has 159892 states and 762096 transitions. Word has length 60 [2021-07-09 17:00:42,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:00:42,358 INFO L482 AbstractCegarLoop]: Abstraction has 159892 states and 762096 transitions. [2021-07-09 17:00:42,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:42,358 INFO L276 IsEmpty]: Start isEmpty. Operand 159892 states and 762096 transitions. [2021-07-09 17:00:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-07-09 17:00:42,366 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:00:42,366 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:00:42,566 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-09 17:00:42,567 INFO L430 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:00:42,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:00:42,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1479281632, now seen corresponding path program 1 times [2021-07-09 17:00:42,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:00:42,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125796915] [2021-07-09 17:00:42,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:00:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:42,704 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:42,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:00:42,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125796915] [2021-07-09 17:00:42,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125796915] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:42,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942790639] [2021-07-09 17:00:42,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:00:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:00:42,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-09 17:00:42,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:00:43,379 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:00:43,379 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942790639] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:00:43,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:00:43,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-07-09 17:00:43,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731063385] [2021-07-09 17:00:43,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-09 17:00:43,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:00:43,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-09 17:00:43,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2021-07-09 17:00:43,380 INFO L87 Difference]: Start difference. First operand 159892 states and 762096 transitions. Second operand has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:00:49,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:00:49,197 INFO L93 Difference]: Finished difference Result 290088 states and 1339226 transitions. [2021-07-09 17:00:49,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 17:00:49,198 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 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 66 [2021-07-09 17:00:49,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:00:53,890 INFO L225 Difference]: With dead ends: 290088 [2021-07-09 17:00:53,891 INFO L226 Difference]: Without dead ends: 239680 [2021-07-09 17:00:53,891 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 741.2ms TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 17:00:56,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239680 states. [2021-07-09 17:01:04,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239680 to 163360. [2021-07-09 17:01:04,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163360 states, 163357 states have (on average 4.670543655919245) internal successors, (762966), 163359 states have internal predecessors, (762966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163360 states to 163360 states and 762966 transitions. [2021-07-09 17:01:06,344 INFO L78 Accepts]: Start accepts. Automaton has 163360 states and 762966 transitions. Word has length 66 [2021-07-09 17:01:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:06,345 INFO L482 AbstractCegarLoop]: Abstraction has 163360 states and 762966 transitions. [2021-07-09 17:01:06,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.75) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 163360 states and 762966 transitions. [2021-07-09 17:01:06,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 17:01:06,374 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:06,374 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:06,578 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:06,579 INFO L430 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:06,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:06,579 INFO L82 PathProgramCache]: Analyzing trace with hash 848577072, now seen corresponding path program 1 times [2021-07-09 17:01:06,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:06,579 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677106290] [2021-07-09 17:01:06,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:06,751 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:06,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677106290] [2021-07-09 17:01:06,751 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677106290] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:06,751 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795379502] [2021-07-09 17:01:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:06,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-09 17:01:06,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:01:07,193 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:07,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795379502] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:07,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:01:07,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-07-09 17:01:07,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759557535] [2021-07-09 17:01:07,194 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:01:07,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:07,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:01:07,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:01:07,196 INFO L87 Difference]: Start difference. First operand 163360 states and 762966 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:18,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:18,050 INFO L93 Difference]: Finished difference Result 560592 states and 2509198 transitions. [2021-07-09 17:01:18,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-07-09 17:01:18,050 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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 70 [2021-07-09 17:01:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:26,357 INFO L225 Difference]: With dead ends: 560592 [2021-07-09 17:01:26,357 INFO L226 Difference]: Without dead ends: 541816 [2021-07-09 17:01:26,358 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 796.0ms TimeCoverageRelationStatistics Valid=783, Invalid=3377, Unknown=0, NotChecked=0, Total=4160 [2021-07-09 17:01:31,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541816 states. [2021-07-09 17:01:45,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541816 to 158448. [2021-07-09 17:01:46,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158448 states, 158445 states have (on average 4.682621729937833) internal successors, (741938), 158447 states have internal predecessors, (741938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158448 states to 158448 states and 741938 transitions. [2021-07-09 17:01:47,388 INFO L78 Accepts]: Start accepts. Automaton has 158448 states and 741938 transitions. Word has length 70 [2021-07-09 17:01:47,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:01:47,388 INFO L482 AbstractCegarLoop]: Abstraction has 158448 states and 741938 transitions. [2021-07-09 17:01:47,389 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 158448 states and 741938 transitions. [2021-07-09 17:01:47,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 17:01:47,408 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:01:47,408 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:01:47,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:47,621 INFO L430 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:01:47,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:01:47,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1388005810, now seen corresponding path program 2 times [2021-07-09 17:01:47,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:01:47,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656991242] [2021-07-09 17:01:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:01:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:01:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:01:47,779 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:01:47,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656991242] [2021-07-09 17:01:47,779 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656991242] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:01:47,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553264641] [2021-07-09 17:01:47,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:01:47,855 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-07-09 17:01:47,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:01:47,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-09 17:01:47,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:01:48,424 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-09 17:01:48,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553264641] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:01:48,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-09 17:01:48,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-07-09 17:01:48,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907502312] [2021-07-09 17:01:48,425 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 17:01:48,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:01:48,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 17:01:48,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-07-09 17:01:48,425 INFO L87 Difference]: Start difference. First operand 158448 states and 741938 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:01:55,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:01:55,456 INFO L93 Difference]: Finished difference Result 358404 states and 1609490 transitions. [2021-07-09 17:01:55,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 17:01:55,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 70 [2021-07-09 17:01:55,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:01:59,873 INFO L225 Difference]: With dead ends: 358404 [2021-07-09 17:01:59,873 INFO L226 Difference]: Without dead ends: 340780 [2021-07-09 17:01:59,874 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 515.0ms TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 17:02:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340780 states. [2021-07-09 17:02:12,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340780 to 149888. [2021-07-09 17:02:12,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149888 states, 149885 states have (on average 4.672368816092337) internal successors, (700318), 149887 states have internal predecessors, (700318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:14,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149888 states to 149888 states and 700318 transitions. [2021-07-09 17:02:14,316 INFO L78 Accepts]: Start accepts. Automaton has 149888 states and 700318 transitions. Word has length 70 [2021-07-09 17:02:14,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:02:14,316 INFO L482 AbstractCegarLoop]: Abstraction has 149888 states and 700318 transitions. [2021-07-09 17:02:14,316 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:14,316 INFO L276 IsEmpty]: Start isEmpty. Operand 149888 states and 700318 transitions. [2021-07-09 17:02:14,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 17:02:14,333 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:02:14,333 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:02:14,547 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:14,547 INFO L430 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:02:14,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:02:14,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1060657690, now seen corresponding path program 1 times [2021-07-09 17:02:14,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:02:14,548 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560994841] [2021-07-09 17:02:14,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:02:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:14,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:02:14,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560994841] [2021-07-09 17:02:14,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560994841] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:14,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279398731] [2021-07-09 17:02:14,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:02:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:02:14,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-09 17:02:14,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:02:15,210 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2021-07-09 17:02:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:02:15,354 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279398731] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:02:15,354 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:02:15,354 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-07-09 17:02:15,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801822201] [2021-07-09 17:02:15,354 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:02:15,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:02:15,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:02:15,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:02:15,355 INFO L87 Difference]: Start difference. First operand 149888 states and 700318 transitions. Second operand has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:02:27,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:02:27,547 INFO L93 Difference]: Finished difference Result 624984 states and 2784362 transitions. [2021-07-09 17:02:27,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-07-09 17:02:27,547 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 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 70 [2021-07-09 17:02:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:02:38,078 INFO L225 Difference]: With dead ends: 624984 [2021-07-09 17:02:38,079 INFO L226 Difference]: Without dead ends: 603544 [2021-07-09 17:02:38,081 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3475 ImplicationChecksByTransitivity, 1604.3ms TimeCoverageRelationStatistics Valid=1838, Invalid=8874, Unknown=0, NotChecked=0, Total=10712 [2021-07-09 17:02:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603544 states. [2021-07-09 17:02:58,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603544 to 168732. [2021-07-09 17:02:58,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168732 states, 168729 states have (on average 4.671704330612995) internal successors, (788252), 168731 states have internal predecessors, (788252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168732 states to 168732 states and 788252 transitions. [2021-07-09 17:03:00,450 INFO L78 Accepts]: Start accepts. Automaton has 168732 states and 788252 transitions. Word has length 70 [2021-07-09 17:03:00,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:00,451 INFO L482 AbstractCegarLoop]: Abstraction has 168732 states and 788252 transitions. [2021-07-09 17:03:00,451 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 4.357142857142857) internal successors, (122), 28 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:00,451 INFO L276 IsEmpty]: Start isEmpty. Operand 168732 states and 788252 transitions. [2021-07-09 17:03:00,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 17:03:00,473 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:00,473 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:00,674 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-07-09 17:03:00,674 INFO L430 AbstractCegarLoop]: === Iteration 10 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:00,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:00,675 INFO L82 PathProgramCache]: Analyzing trace with hash -655905858, now seen corresponding path program 2 times [2021-07-09 17:03:00,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:00,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699237545] [2021-07-09 17:03:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:00,818 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:00,818 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:00,818 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699237545] [2021-07-09 17:03:00,819 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699237545] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:00,819 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414122338] [2021-07-09 17:03:00,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:00,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:03:00,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:03:00,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-09 17:03:00,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:03:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-09 17:03:01,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414122338] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:01,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:03:01,239 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 25 [2021-07-09 17:03:01,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824705201] [2021-07-09 17:03:01,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-09 17:03:01,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:01,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-09 17:03:01,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-07-09 17:03:01,241 INFO L87 Difference]: Start difference. First operand 168732 states and 788252 transitions. Second operand has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:02,300 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 18 [2021-07-09 17:03:14,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:14,986 INFO L93 Difference]: Finished difference Result 631648 states and 2794498 transitions. [2021-07-09 17:03:14,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-07-09 17:03:14,986 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 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 70 [2021-07-09 17:03:14,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:22,501 INFO L225 Difference]: With dead ends: 631648 [2021-07-09 17:03:22,502 INFO L226 Difference]: Without dead ends: 579728 [2021-07-09 17:03:22,503 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1921 ImplicationChecksByTransitivity, 2038.1ms TimeCoverageRelationStatistics Valid=1108, Invalid=5372, Unknown=0, NotChecked=0, Total=6480 [2021-07-09 17:03:26,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579728 states. [2021-07-09 17:03:41,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579728 to 155272. [2021-07-09 17:03:41,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155272 states, 155269 states have (on average 4.657555597060585) internal successors, (723174), 155271 states have internal predecessors, (723174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155272 states to 155272 states and 723174 transitions. [2021-07-09 17:03:43,367 INFO L78 Accepts]: Start accepts. Automaton has 155272 states and 723174 transitions. Word has length 70 [2021-07-09 17:03:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:03:43,367 INFO L482 AbstractCegarLoop]: Abstraction has 155272 states and 723174 transitions. [2021-07-09 17:03:43,367 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 4.64) internal successors, (116), 25 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 155272 states and 723174 transitions. [2021-07-09 17:03:43,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-07-09 17:03:43,387 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:03:43,387 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:03:43,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-07-09 17:03:43,611 INFO L430 AbstractCegarLoop]: === Iteration 11 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:03:43,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:03:43,612 INFO L82 PathProgramCache]: Analyzing trace with hash 442367838, now seen corresponding path program 3 times [2021-07-09 17:03:43,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:03:43,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816565476] [2021-07-09 17:03:43,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:03:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:03:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:03:43,746 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:03:43,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816565476] [2021-07-09 17:03:43,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816565476] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:03:43,747 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845379975] [2021-07-09 17:03:43,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:03:43,853 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-07-09 17:03:43,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:03:43,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-09 17:03:43,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:03:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-09 17:03:44,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845379975] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:03:44,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-09 17:03:44,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15] total 25 [2021-07-09 17:03:44,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287112900] [2021-07-09 17:03:44,157 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 17:03:44,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:03:44,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 17:03:44,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2021-07-09 17:03:44,158 INFO L87 Difference]: Start difference. First operand 155272 states and 723174 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:03:50,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:03:50,435 INFO L93 Difference]: Finished difference Result 336740 states and 1505834 transitions. [2021-07-09 17:03:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 17:03:50,436 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 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 70 [2021-07-09 17:03:50,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:03:54,929 INFO L225 Difference]: With dead ends: 336740 [2021-07-09 17:03:54,929 INFO L226 Difference]: Without dead ends: 317964 [2021-07-09 17:03:54,930 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 525.0ms TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2021-07-09 17:03:57,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317964 states. [2021-07-09 17:04:05,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317964 to 145416. [2021-07-09 17:04:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145416 states, 145413 states have (on average 4.657671597450022) internal successors, (677286), 145415 states have internal predecessors, (677286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145416 states to 145416 states and 677286 transitions. [2021-07-09 17:04:07,158 INFO L78 Accepts]: Start accepts. Automaton has 145416 states and 677286 transitions. Word has length 70 [2021-07-09 17:04:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:07,158 INFO L482 AbstractCegarLoop]: Abstraction has 145416 states and 677286 transitions. [2021-07-09 17:04:07,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:07,159 INFO L276 IsEmpty]: Start isEmpty. Operand 145416 states and 677286 transitions. [2021-07-09 17:04:07,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 17:04:07,187 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:07,187 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:07,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:07,388 INFO L430 AbstractCegarLoop]: === Iteration 12 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:07,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:07,388 INFO L82 PathProgramCache]: Analyzing trace with hash -818909334, now seen corresponding path program 1 times [2021-07-09 17:04:07,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:07,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434849142] [2021-07-09 17:04:07,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:07,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:07,537 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-09 17:04:07,538 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:07,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434849142] [2021-07-09 17:04:07,538 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434849142] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:07,538 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214388064] [2021-07-09 17:04:07,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:07,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-09 17:04:07,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:04:08,018 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2021-07-09 17:04:08,352 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-09 17:04:08,353 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214388064] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:08,353 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:04:08,353 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-07-09 17:04:08,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877556425] [2021-07-09 17:04:08,353 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 17:04:08,354 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:08,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 17:04:08,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-07-09 17:04:08,354 INFO L87 Difference]: Start difference. First operand 145416 states and 677286 transitions. Second operand has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:15,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:15,283 INFO L93 Difference]: Finished difference Result 432594 states and 1920831 transitions. [2021-07-09 17:04:15,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:04:15,297 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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 74 [2021-07-09 17:04:15,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:04:25,613 INFO L225 Difference]: With dead ends: 432594 [2021-07-09 17:04:25,613 INFO L226 Difference]: Without dead ends: 425754 [2021-07-09 17:04:25,614 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1091.5ms TimeCoverageRelationStatistics Valid=618, Invalid=2574, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 17:04:30,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425754 states. [2021-07-09 17:04:40,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425754 to 143376. [2021-07-09 17:04:41,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143376 states, 143373 states have (on average 4.654000404539209) internal successors, (667258), 143375 states have internal predecessors, (667258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143376 states to 143376 states and 667258 transitions. [2021-07-09 17:04:42,291 INFO L78 Accepts]: Start accepts. Automaton has 143376 states and 667258 transitions. Word has length 74 [2021-07-09 17:04:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:04:42,291 INFO L482 AbstractCegarLoop]: Abstraction has 143376 states and 667258 transitions. [2021-07-09 17:04:42,291 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 143376 states and 667258 transitions. [2021-07-09 17:04:42,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 17:04:42,321 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:04:42,321 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:04:42,525 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:42,525 INFO L430 AbstractCegarLoop]: === Iteration 13 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:04:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:04:42,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1239475080, now seen corresponding path program 2 times [2021-07-09 17:04:42,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:04:42,526 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203977226] [2021-07-09 17:04:42,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:04:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:04:42,787 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-09 17:04:42,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:04:42,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203977226] [2021-07-09 17:04:42,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203977226] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:42,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897645903] [2021-07-09 17:04:42,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:04:43,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:04:43,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:04:43,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-09 17:04:43,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:04:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-07-09 17:04:44,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897645903] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:04:44,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:04:44,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-07-09 17:04:44,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916019962] [2021-07-09 17:04:44,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-09 17:04:44,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:04:44,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-09 17:04:44,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=568, Unknown=0, NotChecked=0, Total=650 [2021-07-09 17:04:44,275 INFO L87 Difference]: Start difference. First operand 143376 states and 667258 transitions. Second operand has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:04:44,524 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2021-07-09 17:04:45,688 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2021-07-09 17:04:53,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:04:53,481 INFO L93 Difference]: Finished difference Result 421370 states and 1872667 transitions. [2021-07-09 17:04:53,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:04:53,482 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 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 74 [2021-07-09 17:04:53,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:01,570 INFO L225 Difference]: With dead ends: 421370 [2021-07-09 17:05:01,570 INFO L226 Difference]: Without dead ends: 412730 [2021-07-09 17:05:01,572 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 755 ImplicationChecksByTransitivity, 1642.5ms TimeCoverageRelationStatistics Valid=618, Invalid=2574, Unknown=0, NotChecked=0, Total=3192 [2021-07-09 17:05:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412730 states. [2021-07-09 17:05:16,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412730 to 139496. [2021-07-09 17:05:17,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139496 states, 139493 states have (on average 4.656850164524385) internal successors, (649598), 139495 states have internal predecessors, (649598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139496 states to 139496 states and 649598 transitions. [2021-07-09 17:05:18,856 INFO L78 Accepts]: Start accepts. Automaton has 139496 states and 649598 transitions. Word has length 74 [2021-07-09 17:05:18,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:18,856 INFO L482 AbstractCegarLoop]: Abstraction has 139496 states and 649598 transitions. [2021-07-09 17:05:18,856 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.538461538461538) internal successors, (118), 26 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:18,857 INFO L276 IsEmpty]: Start isEmpty. Operand 139496 states and 649598 transitions. [2021-07-09 17:05:18,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 17:05:18,885 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:18,885 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:19,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-07-09 17:05:19,096 INFO L430 AbstractCegarLoop]: === Iteration 14 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:19,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:19,097 INFO L82 PathProgramCache]: Analyzing trace with hash 780534514, now seen corresponding path program 3 times [2021-07-09 17:05:19,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:19,097 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341141110] [2021-07-09 17:05:19,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:19,237 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-09 17:05:19,237 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:19,237 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341141110] [2021-07-09 17:05:19,237 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341141110] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:19,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:19,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 17:05:19,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902731924] [2021-07-09 17:05:19,238 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 17:05:19,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:19,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 17:05:19,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-07-09 17:05:19,239 INFO L87 Difference]: Start difference. First operand 139496 states and 649598 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:26,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:26,372 INFO L93 Difference]: Finished difference Result 414146 states and 1841727 transitions. [2021-07-09 17:05:26,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:05:26,373 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 74 [2021-07-09 17:05:26,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:05:34,139 INFO L225 Difference]: With dead ends: 414146 [2021-07-09 17:05:34,140 INFO L226 Difference]: Without dead ends: 407306 [2021-07-09 17:05:34,140 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 471.9ms TimeCoverageRelationStatistics Valid=381, Invalid=1425, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:05:37,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407306 states. [2021-07-09 17:05:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407306 to 133536. [2021-07-09 17:05:48,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133536 states, 133533 states have (on average 4.666546846097968) internal successors, (623138), 133535 states have internal predecessors, (623138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:49,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133536 states to 133536 states and 623138 transitions. [2021-07-09 17:05:49,334 INFO L78 Accepts]: Start accepts. Automaton has 133536 states and 623138 transitions. Word has length 74 [2021-07-09 17:05:49,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:05:49,334 INFO L482 AbstractCegarLoop]: Abstraction has 133536 states and 623138 transitions. [2021-07-09 17:05:49,334 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:49,334 INFO L276 IsEmpty]: Start isEmpty. Operand 133536 states and 623138 transitions. [2021-07-09 17:05:49,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 17:05:49,358 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:05:49,358 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:05:49,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-07-09 17:05:49,358 INFO L430 AbstractCegarLoop]: === Iteration 15 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:05:49,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:05:49,359 INFO L82 PathProgramCache]: Analyzing trace with hash 259553744, now seen corresponding path program 4 times [2021-07-09 17:05:49,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:05:49,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311478604] [2021-07-09 17:05:49,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:05:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:05:49,486 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-09 17:05:49,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:05:49,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311478604] [2021-07-09 17:05:49,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311478604] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:05:49,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:05:49,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 17:05:49,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063647995] [2021-07-09 17:05:49,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 17:05:49,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:05:49,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 17:05:49,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-07-09 17:05:49,488 INFO L87 Difference]: Start difference. First operand 133536 states and 623138 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:05:56,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:05:56,156 INFO L93 Difference]: Finished difference Result 409490 states and 1822019 transitions. [2021-07-09 17:05:56,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:05:56,156 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 74 [2021-07-09 17:05:56,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:03,720 INFO L225 Difference]: With dead ends: 409490 [2021-07-09 17:06:03,720 INFO L226 Difference]: Without dead ends: 400850 [2021-07-09 17:06:03,721 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 432.7ms TimeCoverageRelationStatistics Valid=381, Invalid=1425, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:06:07,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400850 states. [2021-07-09 17:06:16,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400850 to 129696. [2021-07-09 17:06:16,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129696 states, 129693 states have (on average 4.669473294626541) internal successors, (605598), 129695 states have internal predecessors, (605598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:18,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129696 states to 129696 states and 605598 transitions. [2021-07-09 17:06:18,555 INFO L78 Accepts]: Start accepts. Automaton has 129696 states and 605598 transitions. Word has length 74 [2021-07-09 17:06:18,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:06:18,555 INFO L482 AbstractCegarLoop]: Abstraction has 129696 states and 605598 transitions. [2021-07-09 17:06:18,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:18,556 INFO L276 IsEmpty]: Start isEmpty. Operand 129696 states and 605598 transitions. [2021-07-09 17:06:18,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-07-09 17:06:18,580 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:06:18,580 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:06:18,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-07-09 17:06:18,580 INFO L430 AbstractCegarLoop]: === Iteration 16 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 17:06:18,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:06:18,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1612947858, now seen corresponding path program 5 times [2021-07-09 17:06:18,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:06:18,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008121769] [2021-07-09 17:06:18,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:06:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:06:18,723 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-07-09 17:06:18,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:06:18,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008121769] [2021-07-09 17:06:18,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008121769] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:06:18,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:06:18,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-07-09 17:06:18,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707515135] [2021-07-09 17:06:18,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-09 17:06:18,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:06:18,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-09 17:06:18,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-07-09 17:06:18,725 INFO L87 Difference]: Start difference. First operand 129696 states and 605598 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:06:25,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:06:25,969 INFO L93 Difference]: Finished difference Result 402386 states and 1791399 transitions. [2021-07-09 17:06:25,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-07-09 17:06:25,970 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 74 [2021-07-09 17:06:25,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:06:34,077 INFO L225 Difference]: With dead ends: 402386 [2021-07-09 17:06:34,077 INFO L226 Difference]: Without dead ends: 395546 [2021-07-09 17:06:34,078 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 451.2ms TimeCoverageRelationStatistics Valid=381, Invalid=1425, Unknown=0, NotChecked=0, Total=1806 [2021-07-09 17:06:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395546 states. Received shutdown request... [2021-07-09 17:06:42,261 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-07-09 17:06:42,262 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-09 17:06:42,262 INFO L301 ceAbstractionStarter]: Result for error location thr1Thread1of4ForFork1 was TIMEOUT (4/5) [2021-07-09 17:06:42,262 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-07-09 17:06:42,265 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 17:06:42,266 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 17:06:42,266 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 17:06:42,266 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 17:06:42,266 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 17:06:42,266 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 17:06:42,266 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 17:06:42,266 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 17:06:42,268 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 120 transitions, 304 flow [2021-07-09 17:06:42,269 WARN L547 AbstractCegarLoop]: Verification canceled [2021-07-09 17:06:42,269 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was TIMEOUT (5/5) [2021-07-09 17:06:42,269 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2021-07-09 17:06:42,273 WARN L196 ceAbstractionStarter]: Timeout [2021-07-09 17:06:42,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 05:06:42 BasicIcfg [2021-07-09 17:06:42,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 17:06:42,274 INFO L168 Benchmark]: Toolchain (without parser) took 515843.90 ms. Allocated memory was 189.8 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 152.6 MB in the beginning and 5.2 GB in the end (delta: -5.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 8.0 GB. [2021-07-09 17:06:42,274 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 170.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 17:06:42,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.50 ms. Allocated memory is still 189.8 MB. Free memory was 152.4 MB in the beginning and 165.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:06:42,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.36 ms. Allocated memory is still 189.8 MB. Free memory was 164.8 MB in the beginning and 163.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 17:06:42,293 INFO L168 Benchmark]: Boogie Preprocessor took 34.97 ms. Allocated memory is still 189.8 MB. Free memory was 163.3 MB in the beginning and 161.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 17:06:42,293 INFO L168 Benchmark]: RCFGBuilder took 469.22 ms. Allocated memory is still 189.8 MB. Free memory was 161.7 MB in the beginning and 140.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-07-09 17:06:42,293 INFO L168 Benchmark]: TraceAbstraction took 514822.78 ms. Allocated memory was 189.8 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 139.7 MB in the beginning and 5.2 GB in the end (delta: -5.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 8.0 GB. [2021-07-09 17:06:42,294 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 189.8 MB. Free memory is still 170.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 452.50 ms. Allocated memory is still 189.8 MB. Free memory was 152.4 MB in the beginning and 165.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 14.1 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 58.36 ms. Allocated memory is still 189.8 MB. Free memory was 164.8 MB in the beginning and 163.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.97 ms. Allocated memory is still 189.8 MB. Free memory was 163.3 MB in the beginning and 161.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 469.22 ms. Allocated memory is still 189.8 MB. Free memory was 161.7 MB in the beginning and 140.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 514822.78 ms. Allocated memory was 189.8 MB in the beginning and 8.0 GB in the end (delta: 7.8 GB). Free memory was 139.7 MB in the beginning and 5.2 GB in the end (delta: -5.0 GB). Peak memory consumption was 2.8 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 689]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 84 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1493.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 11.2ms, AutomataDifference: 616.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 77.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 204 SDtfs, 428 SDslu, 739 SDs, 0 SdLazy, 184 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 162.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 570.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=939occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 71.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.2ms SsaConstructionTime, 59.6ms SatisfiabilityAnalysisTime, 543.9ms InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 2 thread instances CFG has 7 procedures, 100 locations, 5 error locations. Started 0 CEGAR loops. No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 3 thread instances CFG has 9 procedures, 116 locations, 6 error locations. Started 0 CEGAR loops. No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork1 with 4 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 0 CEGAR loops. No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 84 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 136.8ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 9.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=769occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.3ms SsaConstructionTime, 25.2ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 2 thread instances CFG has 7 procedures, 100 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 251.8ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 23.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 137.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4669occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.2ms SsaConstructionTime, 30.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 3 thread instances CFG has 9 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1213.5ms, OverallIterations: 1, TraceHistogramMax: 4, EmptinessCheckTime: 91.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1038.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28069occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.6ms SsaConstructionTime, 21.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 4 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 3.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread3of3ForFork1 with 1 thread instances CFG has 9 procedures, 116 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread3of3ForFork1 with 2 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 0 CEGAR loops. No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread3of4ForFork1 with 1 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.1ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.3ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread4of4ForFork1 with 1 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread2of4ForFork1 with 1 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of4ForFork1 with 1 thread instances CFG has 11 procedures, 132 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 511355.5ms, OverallIterations: 16, TraceHistogramMax: 3, EmptinessCheckTime: 1210.5ms, AutomataDifference: 230590.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6390.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4697 SDtfs, 15835 SDslu, 38781 SDs, 0 SdLazy, 11731 SolverSat, 529 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5380.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1370 GetRequests, 642 SyntacticMatches, 1 SemanticMatches, 727 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11538 ImplicationChecksByTransitivity, 13029.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=205017occurred in iteration=0, InterpolantAutomatonStates: 515, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 260827.5ms AutomataMinimizationTime, 16 MinimizatonAttempts, 3414008 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 222.3ms SsaConstructionTime, 356.8ms SatisfiabilityAnalysisTime, 7624.2ms InterpolantComputationTime, 1782 NumberOfCodeBlocks, 1728 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1755 ConstructedInterpolants, 0 QuantifiedInterpolants, 9930 SizeOfPredicates, 109 NumberOfNonLiveVariables, 1694 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 27 InterpolantComputations, 9 PerfectInterpolantSequences, 185/410 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 could not prove your program: Timeout Completed graceful shutdown